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1.
Clin Ophthalmol ; 18: 1391-1401, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38784434

RESUMO

Purpose: To evaluate both the early experience of real-world patients treated with dexamethasone ophthalmic insert (0.4 mg; DEXTENZA®), hereafter referred to as DEX, after cataract surgery as well as staff/practice integration of DEX relative to eyedrops. Patients and Methods: This was a cross-sectional survey study of 23 cataract practices in the United States. Respondents were patients and practice staff who had experience with DEX following cataract surgery. Both patients and practice staff completed an online survey. Descriptive statistics summarized the survey responses to portray the experience of the respondents. Results: Surveys were completed by 62 patients and 19 practice staff. Almost all patients (93%) were satisfied or extremely satisfied with DEX. Patients highly preferred DEX (93%) to topical steroid drops (7%) based on past experiences with topical steroid drops. Most practice staff (95%) were satisfied or highly satisfied with DEX, reporting a 45% reduction in time spent educating patients on postoperative drop use and a 46% decrease in time spent addressing calls from pharmacies regarding postoperative medications. Conclusion: Incorporating the DEX insert into clinical practice in cataract surgery practices can improve patient adherence, while potentially providing significant savings to practices in terms of time spent educating patients and responding to patient and pharmacy call-backs.

2.
Cornea ; 42(1): 89-96, 2023 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-36256386

RESUMO

PURPOSE: The purpose of this study was to assess the impact of ongoing waves of the COVID-19 pandemic and resulting guidelines on the corneal donor pool with resumption of clinical operations. METHODS: A retrospective analysis of donors deemed eligible for corneal transplantation at an eye bank from July 1, 2020, through December 31, 2021. Donors ineligible due to meeting Eye Bank Association of America (EBAA) COVID-19 guidelines or a positive postmortem COVID-19 testing were examined. The correlation between COVID-19 rule outs and state COVID positivity was calculated. The number of scheduled surgeries, suitable corneas, imports, and international exports was compared with a pre-COVID period. Postmortem testing was reduced for the final 5 months of the study, and numbers were compared before and after the policy change. RESULTS: 2.85% of referrals to the eye bank were ruled out because of EBAA guidelines. 3.2% of postmortem tests were positive or indeterminate resulting in an ineligible tissue donor (0.42% of referrals). Over the 18-month period, there was a 4.30% shortage of suitable corneas compared with transplantation procedures. There was a significant correlation between postmortem testing and state COVID-19 positivity (r = 0.37, P <0.01), but not with EBAA guidelines (r = 0.19, P = 0.07). When postmortem testing was reduced, significantly more corneas were exported internationally. CONCLUSIONS: Although corneal transplant procedures were back to normal levels, there was a shortage of suitable corneal tissue. The discontinuation of postmortem testing was associated with a significant increase in international exports of corneal donor tissue.


Assuntos
COVID-19 , Transplante de Córnea , Humanos , Bancos de Olhos/métodos , Pandemias , COVID-19/epidemiologia , Estudos Retrospectivos , Teste para COVID-19 , Transplante de Córnea/métodos , Doadores de Tecidos , Córnea
3.
Clin Ophthalmol ; 16: 2429-2440, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35968052

RESUMO

Purpose: To describe the early real-world experience of physicians with an intracanalicular dexamethasone insert (DEX) in patients undergoing cataract surgery and to capture the clinical impact of adopting this therapy. Patients and Methods: 23 United States sites including Ambulatory Surgical Center Setting (ASC) and Outpatient Clinical settings. Respondents were physicians who had early experience with DEX in cataract surgery patients. This was a Phase 4 experiential cross-sectional survey study comprised of 3 sequential online physician surveys. Descriptive statistics summarized the surveys' responses to determine the early impressions of the respondents. Results: Forty-two physicians completed surveys. On average, physicians reported feeling comfortable administering DEX after placing 3 inserts (mean 2.7; standard deviation 1.9). Most physicians (92%) were satisfied with DEX, and all physicians (100%) reported that DEX improved patient compliance. Most physicians (62.5%) indicated they would highly prefer DEX over traditional steroid eyedrops for the management of post-surgical inflammation and pain. Conclusion: The surveys exploring the early use of DEX suggest that DEX is a clinically effective treatment with a rapid initial learning curve and integrates well into clinical use. Physicians had a very positive early experience with DEX, including comfort with insertion and satisfaction. DEX shows promise as a primary treatment choice of physicians for ocular inflammation and pain following cataract surgery by offering patients a hands-free innovative therapy that delivers a preservative-free steroid to the ocular surface over approximately 30 days.

4.
Clin Ophthalmol ; 16: 1829-1835, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35702687

RESUMO

Purpose: To assess the change in corneal pachymetry after a novel epithelium-on (EpiSmart®) corneal crosslinking procedure (CXL). Methods: Eyes treated as part of the open-label, non-controlled arm of the study "Collagen Crosslinking with Ultraviolet-A in Asymmetric Corneas" (NCT01097447) were examined at baseline, 3-, 6- and 12-months post-CXL. Thinnest pachymetry readings based on Pentacam (OCULUS GmbH, Wetzlar, Germany) were recorded. Results: A total of 101 eyes met the study inclusion criteria. Thinnest pachymetric readings at baseline averaged 451 ± 50 microns. The mean (± SD) minimum thickness was 450 ± 46 microns at 3 months, 452 ± 47 microns at 6 months, and 451 ± 48 microns at 12 months post-CXL. The changes from baseline (mean ± SE) at 3, 6, and 12 months post-CXL were -1.2 ± 1.5 microns, 0.5 ± 1.6 microns, and 0.4 ± 1.6 microns, respectively. Student's t-tests showed no statistically significant change in pachymetry from baseline for any exam period. Conclusion: This study demonstrated that, after EpiSmart® epithelium-on CXL, there was no substantial corneal thinning observable on Scheimpflug tomography out to 12 months.

5.
Cornea ; 41(7): 917-920, 2022 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-34690271

RESUMO

PURPOSE: The purpose of this study was to describe infectious interface keratitis after Descemet membrane endothelial keratoplasty (DMEK) more than 2 years after surgery. METHODS: A case study. RESULTS: In this study, we report a case of fungal infectious interface keratitis occurring 2 years after uncomplicated Descemet membrane endothelial keratoplasty. The donor corneal rim culture at the time of surgery grew a single colony of Candida albicans/dubliniensis , but the patient was not treated with antifungals at that time. At the onset of clinical infection, more than 2 years postoperatively, the patient was treated with systemic antifungals and adjuvant intrastromal amphotericin-B injection. The patient subsequently required penetrating keratoplasty with ultimately well-preserved visual acuity. CONCLUSIONS: Fungal infectious interface keratitis (IIK) is a rare complication associated with lamellar keratoplasty. Although most common in the early postoperative period, this complication can occur several years after successful transplantation. Management may require a combination of systemic and stromal antifungal therapy. However, some patients may eventually require penetrating keratoplasty for definitive treatment.


Assuntos
Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior , Infecções Oculares Fúngicas , Ceratite , Antifúngicos/uso terapêutico , Lâmina Limitante Posterior/cirurgia , Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior/efeitos adversos , Infecções Oculares Fúngicas/diagnóstico , Infecções Oculares Fúngicas/tratamento farmacológico , Infecções Oculares Fúngicas/etiologia , Humanos , Ceratite/diagnóstico , Ceratite/tratamento farmacológico , Ceratite/etiologia
6.
Pain Manag ; 12(1): 17-23, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34164994

RESUMO

Pain and inflammation are common experiences following ocular surgery and, if uncontrolled, can compromise patients' vision, functioning and quality of life. Corticosteroid drugs are available to manage inflammation and discomfort but have limitations in penetrating the ocular mucus barrier to reach the target ocular tissues. KPI-121 1% (INVELTYS®) is a novel formulation of loteprednol etabonate that employs innovative proprietary technology to deliver nanoparticle-sized mucus-penetrating particles to the cornea. Results from clinical trials demonstrate that KPI-121 1% is effective and well tolerated. KPI-121 1% uses mucopenetrative technology for ophthalmic use and is the only US FDA-approved twice-daily ocular corticosteroid indicated for the treatment of inflammation and pain after ocular surgery.


Assuntos
Antialérgicos , Qualidade de Vida , Antialérgicos/uso terapêutico , Humanos , Inflamação/tratamento farmacológico , Pressão Intraocular , Dor/tratamento farmacológico , Complicações Pós-Operatórias
7.
Cornea ; 40(8): 1018-1023, 2021 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-34029240

RESUMO

PURPOSE: The purpose of this study was to assess the impact of COVID-19 guidelines for corneal donor tissue screening and the utility of routine postmortem COVID-19 testing of donors intended for surgical use at a single eye bank. METHODS: A retrospective analysis of referrals to and eligible donors from an eye bank between March 1, 2020, and June 30, 2020, was performed, with the same time period in 2019 as a control. Referrals who were not procured because of Eye Bank Association of America COVID-19 guidelines and eye bank-specific restrictions were noted. The results of 1 month of routine postmortem testing performed by the eye bank were examined. Analysis of variance tests were performed to assess the change between donors from 2019 to 2020. RESULTS: There was a significant reduction in both the number of total referrals to the eye bank (P = 0.044) and donors eligible for surgical transplantation (P = 0.031). Eye Bank Association of America COVID-19 guidelines reduced the number of referrals over this period by 4% to 14%. Of the 266 surgically eligible donors who received postmortem COVID-19 testing in June by the eye bank, 13 resulted positive (4.9%). CONCLUSIONS: Despite a reduction in referrals and eligible corneal transplant donors at a single eye bank, there was a surplus of surgically suitable corneal tissue during the first wave of the COVID-19 pandemic. Eye banks should consider routine postmortem COVID-19 testing to identify asymptomatic infected donors although the risk of transmission of COVID-19 from infected donors is unknown.


Assuntos
COVID-19/epidemiologia , Córnea , Bancos de Olhos/estatística & dados numéricos , Ceratoplastia Penetrante/estatística & dados numéricos , SARS-CoV-2 , Doadores de Tecidos/provisão & distribuição , Obtenção de Tecidos e Órgãos/normas , Adolescente , Adulto , Idoso , Teste de Ácido Nucleico para COVID-19 , Doenças da Córnea/cirurgia , Bancos de Olhos/normas , Humanos , Pessoa de Meia-Idade , Guias de Prática Clínica como Assunto , Estudos Retrospectivos
8.
Cornea ; 40(9): 1132-1140, 2021 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-33369937

RESUMO

PURPOSE: NOV03 has a unique dual mode of action to address dry eye disease (DED) associated with meibomian gland dysfunction. SEECASE evaluated the efficacy, safety, and tolerability of NOV03 at 2 dosing regimens compared with a saline comparator in patients with DED. METHODS: SEECASE was a prospective, multicenter, randomized, double-masked, saline-controlled clinical study. A total of 336 DED patients [tear film breakup time ≤5 seconds, abnormal meibum secretion, total corneal fluorescein staining (tCFS) score of 4 ≤ X ≤ 11 (National Eye Institute scale), Schirmer of ≥5 mm] were randomized in a 2:2:1:1 manner to NOV03 4 times daily (QID), NOV03 twice daily (BID), saline BID, and saline QID, respectively. The primary efficacy endpoint was tCFS staining at 8 weeks for both regimens. Secondary endpoints included visual analog scales and the Ocular Surface Disease Index questionnaire for symptom assessment. RESULTS: The study met its primary endpoint, change from baseline of tCFS over control, for both dosing regimens QID and BID (P < 0.001 and P = 0.009, respectively). NOV03 also showed pronounced improvement in various symptoms. For the Eye Dryness Score, changes from baseline were statistically significant compared with those of the control at week 8 [P < 0.001 (QID) and P = 0.002 (BID)]. Benefits on tCFS and symptoms started at 2 weeks after start of treatment and were maintained over the study duration. The effects were dosing schedule dependent. NOV03 was well tolerated with instillation site reactions below 3% in both treatment regimes. CONCLUSIONS: The SEECASE study demonstrated that NOV03 improves signs and symptoms in patients with highly symptomatic evaporative dry eye disease.


Assuntos
Síndromes do Olho Seco/tratamento farmacológico , Fluorocarbonos/uso terapêutico , Administração Oftálmica , Adulto , Idoso , Idoso de 80 Anos ou mais , Método Duplo-Cego , Síndromes do Olho Seco/etiologia , Síndromes do Olho Seco/fisiopatologia , Feminino , Fluoresceína/administração & dosagem , Fluorocarbonos/efeitos adversos , Fluorofotometria , Humanos , Masculino , Disfunção da Glândula Tarsal/complicações , Pessoa de Meia-Idade , Soluções Oftálmicas , Estudos Prospectivos , Coloração e Rotulagem/métodos , Inquéritos e Questionários , Lágrimas/fisiologia , Resultado do Tratamento , Escala Visual Analógica , Adulto Jovem
9.
Ocul Surf ; 19: 322-329, 2021 01.
Artigo em Inglês | MEDLINE | ID: mdl-33176215

RESUMO

BACKGROUND: SARS-CoV-2 is found in conjunctival swabs and tears of COVID-19 patients. However, the presence of SARS-CoV-2 has not been detected in the human eye to date. We undertook this study to analyze the prevalence of SARS-CoV-2 in human post-mortem ocular tissues. METHODS: The expression of SARS-CoV-2 RNA was assessed by RT-PCR in corneal and scleral tissues from 33 surgical-intended donors who were eliminated from a surgical use per Eye Bank Association of America (EBAA) donor screening guidelines or medical director review or positive COVID-19 test. Ocular levels of SARS-CoV-2 RNA (RT-PCR), Envelope and Spike proteins (immunohistochemistry) and anti-SARS-CoV-2 IgG and IgM antibodies (ELISA) in blood were evaluated in additional 10 research-intent COVID-19 positive donors. FINDINGS: Of 132 ocular tissues from 33 surgical-intended donors, the positivity rate for SARS-CoV-2 RNA was ~13% (17/132). Of 10 COVID-19 donors, six had PCR positive post-mortem nasopharyngeal swabs whereas eight exhibited positive post-mortem anti-SARS-CoV-2 IgG levels. Among 20 eyes recovered from 10 COVID-19 donors: three conjunctival, one anterior corneal, five posterior corneal, and three vitreous swabs tested positive for SARS-CoV-2 RNA. SARS-CoV-2 spike and envelope proteins were detected in epithelial layer of the corneas that were procured without Povidone-Iodine (PVP-I) disinfection. INTERPRETATIONS: Our study showed a small but noteworthy prevalence of SARS-CoV-2 in ocular tissues from COVID-19 donors. These findings underscore the criticality of donor screening guidelines, post-mortem nasopharyngeal PCR testing and PVP-I disinfection protocol to eliminate any tissue harboring SARS-CoV-2 being used for corneal transplantation.


Assuntos
Autopsia , COVID-19 , Túnica Conjuntiva/virologia , RNA Viral/isolamento & purificação , SARS-CoV-2/isolamento & purificação , Idoso , Córnea/virologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Corpo Vítreo/virologia
10.
medRxiv ; 2020 Oct 06.
Artigo em Inglês | MEDLINE | ID: mdl-33052357

RESUMO

BACKGROUND: SARS-CoV-2 is found in conjunctival swabs and tears of COVID-19 patients. However, the presence of SARS-CoV-2 has not been detected in the human eye to date. We undertook this study to analyze the prevalence of SARS-CoV-2 in human post-mortem ocular tissues. METHODS: The expression of SARS-CoV-2 RNA was assessed by RT-PCR in corneal and scleral tissues from 33 surgical-intended donors who were eliminated from a surgical use per Eye Bank Association of America (EBAA) donor screening guidelines or medical director review or positive COVID-19 test. Ocular levels of SARS-CoV-2 RNA (RT-PCR), Envelope and Spike proteins (immunohistochemistry) and anti-SARS-CoV-2 IgG and IgM antibodies (ELISA) in blood were evaluated in 10 COVID-19 donors. FINDINGS: Of 132 ocular tissues from 33 surgical-intended donors, the positivity rate for SARS-CoV-2 RNA was ~13% (17/132). Of 10 COVID-19 donors, six had PCR positive post-mortem nasopharyngeal swabs whereas eight exhibited positive post-mortem anti-SARS-CoV-2 IgG levels. Among 20 eyes recovered from 10 COVID-19 donors: three conjunctival, one anterior corneal, five posterior corneal, and three vitreous swabs tested positive for SARS-CoV-2 RNA. SARS-CoV-2 spike and envelope proteins were detected in epithelial layer of the corneas that were procured without Povidone-Iodine (PVP-I) disinfection. INTERPRETATIONS: Our study showed a small but noteworthy prevalence of SARS-CoV-2 in ocular tissues from COVID-19 donors. These findings underscore the criticality of donor screening guidelines, post-mortem nasopharyngeal PCR testing and PVP-I disinfection protocol to eliminate any tissue harboring SARS-CoV-2 being used for corneal transplantation.

11.
Am J Ophthalmol Case Rep ; 18: 100707, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32368689

RESUMO

PURPOSE: To describe late-onset fungal keratitis after Descemet's stripping endothelial keratoplasty (DSEK) with positive fungal culture of the donor corneal rim. OBSERVATIONS: A case report of a patient undergoing DSEK is described whereby the donor corneal rim culture grew fungus. No infection was initially noted, but the patient developed fungal keratitis 1 year after the original DSEK procedure, despite prophylactic treatment at the time of the positive donor culture. The patient responded to antifungal therapy, but fungal keratitis recurred following completion of a 1-year course of antifungal treatment. The patient eventually underwent full thickness keratoplasty. CONCLUSIONS AND IMPORTANCE: A positive fungal culture of the donor rim tissue at the time of endothelial keratoplasty is a risk factor for fungal keratitis. Even with prophylactic antifungal treatment, fungal keratitis may eventually develop as late as 1 year after the initial endothelial keratoplasty procedure. Treatment may need to be aggressive, but keratitis may recur despite resolution with antifungal treatment.

12.
Cornea ; 38(2): 177-182, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30615600

RESUMO

PURPOSE: Descemet stripping endothelial keratoplasty (DSEK), currently the most common procedure for managing corneal endothelial dysfunction, may be repeated following DSEK failure from a variety of causes. This multicenter study reports the risk factors and outcomes of repeat DSEK. METHODS: This was an institutional review board-approved multicenter retrospective chart review of patients who underwent repeat DSEK. Twelve surgeons from 5 Midwest academic centers and 3 private practice groups participated. The Eversight Eye Bank provided clinical indication and donor graft data. We also assessed the role of the learning curve by comparing cohorts from the first and second 5-year periods. RESULTS: A total of 121 eyes from 121 patients who underwent repeat DSEK were identified. The average age of the patients was 70 ± 12 years. The most common indication for repeat DSEK was late endothelial graft failure without rejection (58%, N = 63). Average preoperative and 12-month postoperative repeat DSEK corrected distance visual acuities were 20/694 and 20/89, respectively. Visual acuity outcomes, endothelial cell density, and cell loss did not significantly vary between the 2 cohorts. Initial graft rebubble rates for the first and second cohorts were 51% and 25%. The presence of glaucoma, prior glaucoma surgery, or a history of penetrating (full thickness) keratoplasty did not significantly affect visual outcomes. The median, mean, and range of intraocular pressures before repeat DSEK were 15.0, 15.7, and 6 to 37 mm Hg, respectively. Patients with higher intraocular pressures before repeat DSEK had improved postoperative corrected distance visual acuities. CONCLUSIONS: Repeating DSEK improves vision following failed or decompensated DSEK surgery. Higher preoperative repeat DSEK IOPs were associated with improved visual outcomes, and initial graft rebubble rates, which decreased over time, were likely due to surgeon experience.


Assuntos
Doenças da Córnea/cirurgia , Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior/métodos , Idoso , Idoso de 80 Anos ou mais , Doenças da Córnea/fisiopatologia , Perda de Células Endoteliais da Córnea/etiologia , Feminino , Rejeição de Enxerto/patologia , Humanos , Pressão Intraocular/fisiologia , Masculino , Pessoa de Meia-Idade , Reoperação , Estudos Retrospectivos , Fatores de Risco , Acuidade Visual/fisiologia
13.
Cornea ; 36(12): 1556-1558, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28976414

RESUMO

PURPOSE: To report the successful medical management of a late-onset Descemet membrane endothelial keratoplasty (DMEK)-related interface infection. METHODS: A case of DMEK endothelial keratoplasty-related infection treated with intrastromal antifungal injection was identified. The following information was collected: demographic data, surgical indications, donor rim cultures, donor mate outcomes, clinical course, diagnostic tests, and clinical outcome. RESULTS: A DMEK patient developed a single infiltrate approximately 1 month after uncomplicated DMEK. Donor rim culture was positive for Candida glabrata but no prophylactic treatment was initiated. Anterior segment optical coherence tomography confirmed the location of the infiltrate, and the patient was treated with oral fluconazole and an intrastromal injection of amphotericin B with an inadvertent, but negligible, intracameral volume of the same drug. The lesion significantly regressed on examination 2 days later with complete involution and excellent visual acuity to date. CONCLUSIONS: Medical therapy, including systemic and intrastromal application, is a viable initial treatment option for late-onset, presumed yeast interface keratitis in patients who have undergone DMEK.


Assuntos
Anfotericina B/administração & dosagem , Antifúngicos/administração & dosagem , Candidíase/tratamento farmacológico , Infecções Oculares Fúngicas/tratamento farmacológico , Complicações Pós-Operatórias/tratamento farmacológico , Anfotericina B/uso terapêutico , Candida glabrata/isolamento & purificação , Quimioterapia Adjuvante , Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior/efeitos adversos , Quimioterapia Combinada , Feminino , Fluconazol/administração & dosagem , Humanos , Injeções Intraoculares , Pessoa de Meia-Idade
14.
Clin Ophthalmol ; 11: 1423-1430, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28848324

RESUMO

PURPOSE: To determine the incidence and severity of dry eye as determined by the International Task Force (ITF) scale in patients being screened for cataract surgery. PATIENTS AND METHODS: This was a prospective, multi-center, observational study of 136 patients, at least 55 years of age, who were scheduled to undergo cataract surgery. The primary outcome measure was the incidence of dry eye as evaluated by grade on the ITF scale and secondary outcome measures include tear break-up time (TBUT), ocular surface disease index score, corneal staining with fluorescein, conjunctival staining with lissamine green, and a patient questionnaire to evaluate symptoms of dry eye. RESULTS: Mean patient age was 70.7 years. A total of 73.5% of patients were Caucasian and 50% were female. Almost 60% had never complained of a foreign body sensation; only 13% complained of a foreign body sensation half or most of the time. The majority of patients (62.9%) had a TBUT ≤5 seconds, 77% of eyes had positive corneal staining and 50% of the eyes had positive central corneal staining. Eighteen percent had Schirmer's score with anesthesia ≤5 mm. CONCLUSION: The incidence of dry eye in patients scheduled to undergo cataract surgery in a real-world setting is higher than anticipated.

15.
J Cataract Refract Surg ; 43(1): 131-135, 2017 01.
Artigo em Inglês | MEDLINE | ID: mdl-28317666

RESUMO

A 41-year-old man presented 10 years after uneventful laser in situ keratomileusis (LASIK) with symptomatic post-LASIK ectasia. He had treatment with the classic Dresden epithelium-off technique and presented 4 years later with progression of the ectasia. He was subsequently retreated with conductive keratoplasty (CK) followed by a new proprietary epithelium-on corneal collagen crosslinking (CXL) procedure using a proprietary transepithelial riboflavin formulation and delivery system on the following day. One year after retreatment, the patient noted stable vision in the treated eye with a corrected distance visual acuity (CDVA) of 20/60+. Thus, epithelium-on CXL, if performed with appropriate formulations and delivery technology as well as careful attention to appropriate riboflavin loading of the stroma, can stabilize an ectatic cornea. In addition, when performed prior to CXL, CK can induce a significant, lasting improvement in corneal shape and CDVA. This technique merits further study.


Assuntos
Doenças da Córnea , Ceratomileuse Assistida por Excimer Laser In Situ , Adulto , Colágeno , Córnea , Doenças da Córnea/terapia , Dilatação Patológica , Humanos , Ceratomileuse Assistida por Excimer Laser In Situ/métodos , Masculino , Retratamento , Riboflavina/administração & dosagem , Acuidade Visual
16.
Curr Opin Ophthalmol ; 27 Suppl 1: 3-47, 2017 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28099212

RESUMO

Dysfunctional tear syndrome (DTS) is a common and complex condition affecting the ocular surface. The health and normal functioning of the ocular surface is dependent on a stable and sufficient tear film. Clinician awareness of conditions affecting the ocular surface has increased in recent years because of expanded research and the publication of diagnosis and treatment guidelines pertaining to disorders resulting in DTS, including the Delphi panel treatment recommendations for DTS (2006), the International Dry Eye Workshop (DEWS) (2007), the Meibomian Gland Dysfunction (MGD) Workshop (2011), and the updated Preferred Practice Pattern guidelines from the American Academy of Ophthalmology pertaining to dry eye and blepharitis (2013). Since the publication of the existing guidelines, new diagnostic techniques and treatment options that provide an opportunity for better management of patients have become available. Clinicians are now able to access a wealth of information that can help them obtain a differential diagnosis and treatment approach for patients presenting with DTS. This review provides a practical and directed approach to the diagnosis and treatment of patients with DTS, emphasizing treatment that is tailored to the specific disease subtype as well as the severity of the condition.


Assuntos
Síndromes do Olho Seco , Doenças Palpebrais/fisiopatologia , Glândulas Tarsais/fisiopatologia , Lágrimas/fisiologia , Blefarite/diagnóstico , Blefarite/fisiopatologia , Blefarite/terapia , Síndromes do Olho Seco/diagnóstico , Síndromes do Olho Seco/fisiopatologia , Síndromes do Olho Seco/terapia , Humanos , Ceratoconjuntivite Seca/diagnóstico , Ceratoconjuntivite Seca/fisiopatologia , Ceratoconjuntivite Seca/terapia
17.
Cornea ; 36(2): 217-221, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-28060070

RESUMO

PURPOSE: The purpose of this study was to determine the correct concentration and duration of application of trypan blue dye to Descemet membrane endothelial keratoplasty (DMEK) donor corneal tissue before transplant to enhance visibility while minimizing damage to the tissue. METHODS: Corneas were precut for DMEK using an 8-mm punch, and each was stained with either 0.06% or 0.15% trypan blue for a duration of 1, 3, or 5 minutes. After staining, each tissue was placed in balanced salt solution and observed to determine how quickly the stain faded from the tissue using a grading system. Each cornea then underwent slit-lamp evaluation, specular microscopy, and assessment of the level of stain retained. RESULTS: Tissue processed with 0.06% trypan blue for 1 minute regressed to a level 1 stain at an average of 109 minutes; tissue stained for 3 and 5 minutes regressed to a level 2 to 3 stain by 110 minutes. Endothelial cell density (ECD) was not affected when compared with prestaining measurements. Tissue processed with 0.15% trypan blue for 1 and 3 minutes regressed only to a level 2 to 3 stain at an average of 130 minutes; there was no change in ECD when stained for 1 to 3 minutes. Tissue stained for 5 minutes with 0.15% trypan blue regressed to a level 3 to 4 stain by 130 minutes. However, ECD was decreased by 11% when compared with prestaining measurements (P = 0.058). CONCLUSIONS: Staining of DMEK donor tissue with VisionBlue (0.06%) up to 5 minutes is effective (visibility of staining is maintained for a sufficient period) and safe (no adverse effect on ECD). The higher concentration of trypan blue (0.15%, MembraneBlue) may be suggested during the learning curve of the DMEK surgeon, as it allowed a higher level of stain without adverse effects but only if used for 1 to 3 minutes; a longer staining time of 5 minutes resulted in a decrease in ECD, which approached statistical significance. Further study is required on use of the higher concentration of VisionBlue. The recent use of the "S" stamp may further help surgeons orient the graft correctly, thus requiring less intense trypan blue staining.


Assuntos
Corantes/administração & dosagem , Perda de Células Endoteliais da Córnea/diagnóstico , Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior/métodos , Endotélio Corneano/efeitos dos fármacos , Azul Tripano/administração & dosagem , Contagem de Células , Lâmina Limitante Posterior/cirurgia , Endotélio Corneano/patologia , Humanos , Lâmpada de Fenda , Fatores de Tempo , Doadores de Tecidos
18.
Cornea ; 35(6): 741-8, 2016 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27055211

RESUMO

PURPOSE: To evaluate the 1-year safety of lifitegrast ophthalmic solution 5.0% in patients with dry eye disease compared with placebo. METHODS: SONATA (Safety Of a 5.0% coNcentrATion of lifitegrAst ophthalmic solution) was a multicenter, randomized, prospective, double-masked, placebo-controlled phase 3 study (NCT01636206). Adults (≥18 years) with dry eye disease (Schirmer test score ≥1 and ≤10 mm; corneal staining score ≥2.0) were randomized 2:1 to lifitegrast ophthalmic solution 5.0% or placebo twice daily for 360 days. The primary objective was percentage and severity of treatment-emergent adverse events (TEAEs). Secondary objectives were ocular safety measures: corneal fluorescein staining, drop comfort, best-corrected visual acuity, slit-lamp biomicroscopy, and intraocular pressure over 7 visits. Exploratory objectives included concentration of lifitegrast in plasma. RESULTS: The safety population comprised 331 participants (220 lifitegrast; 111 placebo). There were no serious ocular TEAEs. Overall, 53.6% of participants receiving lifitegrast experienced ≥1 ocular TEAE versus 34.2% in the placebo group; most TEAEs were mild to moderate in severity. Rates of discontinuation because of TEAEs were 12.3% (lifitegrast) versus 9.0% (placebo). The most common (>5%) TEAEs occurring in either treatment group were instillation site irritation (burning), instillation site reaction, visual acuity reduced, dry eye, and dysgeusia (change in taste). Ocular safety parameters for lifitegrast were similar to placebo. The mean plasma lifitegrast concentration at 360 days (n = 43) was below the limit of detection. There was no indication of systemic toxicity or localized infectious complications secondary to chronic immunosuppression. CONCLUSIONS: Lifitegrast ophthalmic solution 5.0% seemed safe and well tolerated in this study, with no unexpected adverse events.


Assuntos
Síndromes do Olho Seco/tratamento farmacológico , Antígeno-1 Associado à Função Linfocitária/efeitos dos fármacos , Soluções Oftálmicas/efeitos adversos , Fenilalanina/análogos & derivados , Sulfonas/efeitos adversos , Adulto , Idoso , Idoso de 80 Anos ou mais , Método Duplo-Cego , Síndromes do Olho Seco/fisiopatologia , Feminino , Fluorofotometria , Humanos , Pressão Intraocular/efeitos dos fármacos , Masculino , Pessoa de Meia-Idade , Soluções Oftálmicas/uso terapêutico , Fenilalanina/efeitos adversos , Fenilalanina/uso terapêutico , Estudos Prospectivos , Sulfonas/uso terapêutico , Acuidade Visual/efeitos dos fármacos , Adulto Jovem
19.
Ophthalmology ; 122(6): 1085-95, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-25795477

RESUMO

OBJECTIVE: To review the published literature assessing the efficacy and safety of mitomycin-C (MMC) as an adjunctive treatment in corneal surface excimer laser ablation procedures. METHODS: Literature searches of the PubMed and Cochrane Library databases were last conducted on August 19, 2014, without language or date limitations. The searches retrieved a total of 239 references. Of these, members of the Ophthalmic Technology Assessment Committee Refractive Management/Intervention Panel selected 26 articles that were considered to be of high or medium clinical relevance, and the panel methodologist rated each article according to the strength of evidence. Ten studies were rated as level I evidence, 5 studies were rated as level II evidence, and the remaining 11 studies were rated as level III evidence. RESULTS: The majority of the articles surveyed in this report support the role of MMC as an adjunctive treatment in surface ablation procedures. When MMC is applied in the appropriate concentration and confined to the central cornea, the incidence of post-surface ablation haze is decreased. Although a minority of studies that evaluated endothelial cell density (ECD) reported an MMC-related decrease in ECD, no clinical adverse outcomes were reported. CONCLUSIONS: Over the past 15 years, the use of MMC during surgery in surface ablation has become widespread. There is good evidence of the effectiveness of MMC when used intraoperatively as prophylaxis against haze in higher myopic ablations. Although there are reports of decreased endothelial counts after the administration of MMC during surgery, the clinical significance of this finding remains uncertain, because no adverse outcomes were reported with as much as 5 years of follow-up. Optimal dosage, effectiveness as prophylaxis in lower myopic and hyperopic ablations, and long-term safety, particularly in eyes with reduced corneal endothelial cell counts from prior intraocular surgery, have yet to be established.


Assuntos
Alquilantes/administração & dosagem , Cirurgia da Córnea a Laser/métodos , Lasers de Excimer/uso terapêutico , Mitomicina/administração & dosagem , Miopia/tratamento farmacológico , Miopia/cirurgia , Complicações Pós-Operatórias/prevenção & controle , Academias e Institutos , Alquilantes/efeitos adversos , Terapia Combinada , Córnea/fisiopatologia , Humanos , Mitomicina/efeitos adversos , Miopia/fisiopatologia , Oftalmologia , Avaliação da Tecnologia Biomédica , Estados Unidos , Transtornos da Visão/fisiopatologia , Transtornos da Visão/prevenção & controle , Acuidade Visual/fisiologia
20.
J Cataract Refract Surg ; 40(12): 2057-66, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25465686

RESUMO

PURPOSE: To evaluate the effectiveness of a hydrogel sealant versus a suture in preventing fluid egress after wound leakage in cataract surgery. SETTING: Twenty-four ophthalmic clinical practices in the United States. DESIGN: Prospective randomized parallel-arm controlled multicenter subject-masked study. METHODS: Healthy patients having uneventful clear corneal incision (CCI) cataract surgery were eligible for the study. Spontaneous and provoked fluid egress from wounds was evaluated at the time of surgery using a calibrated force gauge. Eyes with leakage were randomized to receive a hydrogel sealant (Resure) or a nylon suture at the main incision site. Incision leakage was reevaluated 1, 3, 7, and 28 days postoperatively. RESULTS: Of 500 eyes, 488 had leakage at the time of cataract surgery. The leak was spontaneous in 244 cases (48.8%), and 488 (97.6%) of all incisions leaked with 1.0 ounce or less of applied force. After randomization, 12 (4.1%) of 295 eyes in the sealant group and 60 (34.1%) of 176 eyes in the suture group had wound leakage with provocation (P<.0001). The overall incidence of adverse ocular events was statistically significantly lower in the sealant group than in the suture group (P<.05). CONCLUSIONS: In this study, 97.6% of CCIs leaked after cataract surgery. The hydrogel sealant was safe and effective and better than a suture for the intraoperative management of CCIs with leakage as seen on Seidel testing and for the prevention of postoperative fluid egress.


Assuntos
Extração de Catarata , Hidrogel de Polietilenoglicol-Dimetacrilato , Complicações Pós-Operatórias/prevenção & controle , Deiscência da Ferida Operatória/prevenção & controle , Técnicas de Sutura , Adesivos Teciduais/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Córnea/efeitos dos fármacos , Córnea/cirurgia , Método Duplo-Cego , Feminino , Humanos , Pressão Intraocular/fisiologia , Implante de Lente Intraocular , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Deiscência da Ferida Operatória/etiologia , Acuidade Visual/fisiologia , Cicatrização/efeitos dos fármacos
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