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1.
Artículo en Inglés | MEDLINE | ID: mdl-38958930

RESUMEN

PURPOSE: To investigate whether standard keratometry (K) or total corneal power (TCP) lead to more accurate refractive outcomes for intraocular lens (IOL) power calculation. SETTING: Public hospital. DESIGN: Retrospective evaluation of a diagnostic test instrument. METHODS: Preoperatively all patients underwent optical biometry with the Anterion (Heidelberg), a swept-source optical coherence tomographer providing both K and TCP. The same IOL model was implanted in all cases. The whole sample was divided into a training dataset, used to optimize the formula constants, and a testing dataset, used to investigate the spherical equivalent prediction error (SEQ-PE) of 8 IOL power formulas. Trueness, precision and accuracy were evaluated by means of the robust two-sample t-test. Cochran's Q test was performed to assess whether the percentage of eyes with an SEQ-PE within each threshold was significantly different; in such an event, the McNemar test was then applied. RESULTS: Both the training and testing datasets included 317 eyes. No significant differences were detected for trueness, due to constant optimization. Precision and accuracy were better when K was entered, although a statistically significant difference was observed only with the EVO (precision: p = 0.02 and accuracy: p = 0.03) and Haigis formula (p <0.01 for both precision and accuracy). No significant differences were observed for the percentage of eyes with an absolute SEQ-PE within any threshold. CONCLUSIONS: With most formulas, IOL power calculation is not more accurate when TCP is used instead of K.

2.
Microorganisms ; 12(5)2024 Apr 30.
Artículo en Inglés | MEDLINE | ID: mdl-38792749

RESUMEN

This study aims to report the efficacy of a combined intrastromal injection in optimizing the outcome of severe mycotic keratitis. Herein, we report a case series of 20 consecutive patients with positive fungal cultures not responding to topical antifungal treatment. Patients received cycles of intrastromal injections of voriconazole (50 µg/0.1 mL) and amphotericin B (2.5 µg/0.1 mL); all patients continued their topical antifungal therapy. The organisms isolated were Fusarium (n = 5), Aspergillus (n = 4), Candida (n = 4), Rhodotorula (n = 2), Penicillium (n = 2), Alternaria (n = 1), Bipolaris (n = 1), and Curvularia (n = 1). The size of the infiltrate varied from 6.5 to 1.5 mm. At presentation, the best corrected visual acuity (BCVA, namely, the best visual acuity achieved with glasses, if needed) was less than 20/400 in all patients, improving to better than 20/400 in eleven patients. Seven patients required surgical intervention; four of them underwent penetrating keratoplasty (PK) à chaud one month after the first intrastromal injection. Patients who underwent surgery achieved a BCVA of 20/40 or better. Combined intrastromal injections before therapeutic penetrating keratoplasty (TPK) effectively reduced ulcer size and graft diameter, preventing infection recurrence. Our results highlight the efficacy of combined intrastromal injections in optimizing outcomes for severe mycotic keratitis undergoing TPK.

3.
BMC Ophthalmol ; 24(1): 131, 2024 Mar 25.
Artículo en Inglés | MEDLINE | ID: mdl-38528481

RESUMEN

PURPOSE: We describe the management of a case of severe corneal melting after corneal cross-linking (CXL) treated with a staged approach using a conjunctival flap followed by deep anterior lamellar keratoplasty (DALK). METHODS: A 12-year-old male developed severe corneal melting with pending perforation after an accelerated epithelium-off CXL protocol. We initially treated the patient with a conjunctival flap to prevent perforation. Three months later, we performed DALK to restore vision. RESULTS: Conjunctival flap surgery allowed us to avoid corneal perforation and penetrating keratoplasty (PK) à chaud. Once the inflammation had resolved, we recessed the conjunctiva and performed DALK for optical purposes. Twelve months later, the graft was clear and the corrected visual acuity was 20/25 (Snellen). No complications occurred after surgery. CONCLUSIONS: Although CXL is considered a safe procedure, in rare cases it can lead to serious complications, such as corneal haze, infectious and non-infectious keratitis, stromal melting and perforation. Corneal melting and perforation are usually managed by emergency PK. Herein we suggest a staged approach involving an emergency conjunctival flap followed by DALK at a later time that allowed us to avoid PK à chaud.


Asunto(s)
Trasplante de Córnea , Úlcera de la Córnea , Queratocono , Masculino , Humanos , Niño , Queratocono/tratamiento farmacológico , Queratocono/cirugía , Trasplante de Córnea/métodos , Queratoplastia Penetrante/métodos , Úlcera de la Córnea/cirugía , Colágeno , Estudios Retrospectivos , Resultado del Tratamiento
4.
J Clin Med ; 13(3)2024 Feb 02.
Artículo en Inglés | MEDLINE | ID: mdl-38337570

RESUMEN

(1) Background: This study offers a biexponential model to estimate corneal endothelial cell decay (ECD) following preloaded "endothelium-in" Descemet membrane endothelial keratoplasty (DMEK) in Fuchs' endothelial corneal dystrophy (FECD) patients; (2) Methods: A total of 65 eyes undergoing DMEK alone or combined with cataract surgery were evaluated. The follow-up period was divided into an early phase (first 6 months) and a late phase (up to 36 months). Endothelial cell count (ECC) and endothelial cell loss (ECL) were analyzed; (3) Results: The half time of the ECD was 3.03 months for the early phase and 131.50 months for the late phase. The predicted time-lapse interval to reach 500 cells/mm2 was 218 months (18.17 years), while the time-lapse interval to reach 250 cells/mm2 was 349 months (29.08 years). There was no statistically significant difference between the ECL in DMEK combined with cataract extraction and DMEK alone at 24 months (p ≥ 0.20). At the late phase, long-term ECL prediction revealed a lower ECC half time in patients undergoing DMEK combined with cataract surgery (98.05 months) than DMEK alone (250.32 months); (4) Conclusions: Based on the mathematical modeling, a predicted average half-life of a DMEK graft could reach 18 years in FECD. Moreover, combining cataract extraction with DMEK could result in excessive ECL in the long term.

5.
Cornea ; 2023 Nov 22.
Artículo en Inglés | MEDLINE | ID: mdl-38015948

RESUMEN

PURPOSE: The purpose of this study was to report the outcomes of a novel artificial endothelial replacement membrane implant for treating corneal edema after failed repeat endothelial keratoplasty (EK). DESIGN: This was a retrospective interventional case series. METHODS: Patients with chronic corneal edema underwent removal of the EK graft and implantation of an artificial endothelial replacement membrane (EndoArt, EyeYon Medical, Israel) several months after 2 or more Descemet stripping endothelial keratoplasty procedures. The implant was secured to the posterior corneal surface using an air-gas bubble. Outcome measures included corrected distance visual acuity (logMAR), central corneal thickness, device-related complications, and ocular discomfort. RESULTS: Five eyes of 5 patients underwent EndoArt implantation. Six months after surgery, the synthetic endothelial replacement membrane was well-centered and adherent to the posterior corneal surface, with improvement in central corneal transparency in all patients. Corrected distance visual acuity increased from mean 1.26 ± 0.25 (logMAR) preoperatively to 0.74 ± 0.44 (logMAR) postoperatively (P = 0.06). Central corneal thickness significantly decreased from a mean of 805 ± 135 µm (excluding the EK graft) preoperatively to 588 ± 60 µm (excluding the EndoArt) postoperatively (P = 0.015). No severe device-related complications developed after surgery, although most patients required more than 1 air-gas bubble injection to achieve complete implant adhesion. All patients experienced preoperative reduction in subjective ocular pain. CONCLUSIONS: Synthetic endothelial replacement membrane implantation improves central corneal transparency and visual acuity in patients with failed EK and guarded prognosis for repeat keratoplasty. No significant implant-related adverse events occurred after surgery.

6.
Eur J Ophthalmol ; 33(5): 2047-2051, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37261996

RESUMEN

INTRODUCTION: Anterior segment reconstruction and penetrating keratoplasty combined with iris prosthesis (IP) and intraocular lens (IOL) scleral fixation require prolonged open-sky surgery and complex suturing. Herein we present a novel double-flanged knotless surgical technique that minimizes the open sky duration and facilitates the fixation of the IP and IOL complex to the sclera. METHODS: After corneal trephination and removal, a temporary keratoprosthesis is fixated. Three 5.0 polypropylene suture segments are introduced in the anterior chamber transconjunctivally and then externalized through keratoprosthesis. Each suture is threaded through the eyelets of the IP and then flanged. The temporary keratoprosthesis is removed, and the IP and IOL complex is positioned in the sulcus. A donor cornea button is sutured in place and the IP is centred on the optical axis by adjusting the polypropylene sutures. Finally, the suture ends are shortened, flanged, and buried under the conjunctiva. RESULTS: Surgery was performed on three eyes of three patients. No intraoperative complications occurred, while cystoid macular edema and ocular hypertension occurred in two patients during the follow-up period. The best corrected visual acuity was 6/20, 8/20, and 13/20. So far the IPs remained stable in the three eyes with a maximum follow-up of 18 months. CONCLUSION: This novel technique of penetrating keratoplasty combined with an intraocular lens (IOL) and iris prosthesis implantation makes it possible to reduce open sky surgery time, avoid complex suturing, and ensure optimal IOL visual axis alignment by adjusting suture tension.


Asunto(s)
Enfermedades de la Córnea , Lentes Intraoculares , Humanos , Córnea/cirugía , Enfermedades de la Córnea/cirugía , Iris/cirugía , Queratoplastia Penetrante/métodos , Implantación de Lentes Intraoculares/métodos , Polipropilenos , Estudios Retrospectivos , Esclerótica/cirugía , Técnicas de Sutura
7.
J Clin Med ; 12(9)2023 Apr 22.
Artículo en Inglés | MEDLINE | ID: mdl-37176489

RESUMEN

Intraoperative OCT is an innovative and promising technology which allows anterior and posterior segment ocular surgeons to obtain a near-histologic cross-sectional and tomographic image of the tissues. Intraoperative OCT has several applications in ocular surgery which are particularly interesting in the context of corneal transplantation. Indeed, iOCT images provide a direct and meticulous visualization of the anatomy, which could guide surgical decisions. In particular, during both big-bubble and manual DALK, the visualization of the relationship between the corneal layers and instruments allows the surgeon to obtain a more desirable depth of the trephination, thus achieving more type 1 bubbles, better regularity of the plane, and a reduced risk of DM perforation. During EK procedures, iOCT supplies information about proper descemetorhexis, graft orientation, and interface quality in order to optimize the postoperative adhesion and reduce the need for re-bubbling. Finally, mushroom PK, a challenging technique for many surgeons, can be aided through the use of iOCT since it guides the correct apposition of the lamellae and their centration. The technology of iOCT is still evolving: a larger field of view could allow for the visualization of all surgical fields, and automated tracking and iOCT autofocusing guarantee the continued centration of the image.

8.
Graefes Arch Clin Exp Ophthalmol ; 261(11): 3097-3111, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37103622

RESUMEN

PURPOSE: To provide a comprehensive review of the incidence, risk factors, and management of early complications after deep anterior lamellar keratoplasty (DALK), Descemet stripping automated keratoplasty (DSAEK), and Descemet membrane endothelial keratoplasty (DMEK). METHODS: A literature review of complications, that can occur from the time of the transplant up to 1 month after the transplant procedure, was conducted. Case reports and case series were included in the review. RESULTS: Complications in the earliest postoperative days following anterior and posterior lamellar keratoplasty have shown to affect graft survival. These complications include, but are not limited to, double anterior chamber, sclerokeratitis endothelial graft detachment, acute glaucoma, fluid misdirection syndrome, donor-transmitted and recurrent infection, and Uretts-Zavalia syndrome. CONCLUSION: It is essential for surgeons and clinicians to not only be aware of these complications but also know how to manage them to minimize their impact on long-term transplant survival and visual outcomes.

9.
J Clin Med ; 12(4)2023 Feb 20.
Artículo en Inglés | MEDLINE | ID: mdl-36836212

RESUMEN

Transient hypotony is the most common early complication after Preserflo MicroShunt (PMS) implantation. High myopia is a risk factor for the development of postoperative hypotony-related complications; therefore, it is advisable that PMS implantation in patients should be performed while employing hypotony preventive measures. The aim of this study is to compare the frequency of postoperative hypotony and hypotony-related complications in high-risk myopic patients after PMS implantation with and without intraluminal 10.0 nylon suture stenting. This is a retrospective, case-control, comparative study of 42 eyes with primary open-angle glaucoma (POAG) and severe myopia that underwent PMS implantation. A total of 21 eyes underwent a non-stented PMS implantation (nsPMS), while in the remaining eyes (21 eyes), PMS was implanted with an intraluminal suture (isPMS group). Hypotony occurred in six (28.57%) eyes in the nsPMS group and none in the isPMS group. Choroidal detachment occurred in three eyes in the nsPMS group; two of them were associated with the shallow anterior chamber and one was associated with macular folds. At 6 months after surgery, the mean IOP was 12.1 ± 3.16 mmHg and 13.43 ± 5.22 mmHg (p = 0.41) in the nsPMS and isPMS group, respectively. PMS intraluminal stenting is an effective measure to prevent early postoperative hypotony in POAG highly myopic patients.

10.
Cornea ; 42(1): 27-31, 2023 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-35942529

RESUMEN

PURPOSE: The aim of this study was to evaluate the efficacy and safety of the Yogurt technique for Descemet membrane endothelial keratoplasty (DMEK) graft preparation. METHODS: This study included patients who underwent DMEK combined or not with phacoemulsification surgery using donor tissues prepared by a surgeon with the DMEK Tzamalis disposable punch at 2 referral hospitals between October 2019 and June 2021. Primary outcomes were duration of graft preparation, surgeon grading of graft quality, and endothelial cell density measured at 1 and 6 months after surgery. Secondary outcomes were best-corrected visual acuity (BCVA) measured at 1 and 6 months postoperatively and DMEK intraoperative and postoperative complications. RESULTS: Forty-nine patients were included in this study. The mean DMEK graft preparation time was 7.2 ± 1.4 minutes. Donor grafts were rated good in 67.3% of cases (33 of 49), sufficient in 24.5% (12 of 49), and poor in 8.2% (4 of 49). Donor mean endothelial cell density was 2580 ± 155 preoperatively, which were reduced to 2269 ± 191 ( P < 0.000) and 1697 ± 142 ( P < 0.0001) at 1 and 6 months, respectively. No significant difference was found in graft preparation outcome ( P = 0.543). The preoperative BCVA was 0.65 ± 0.44 logMAR, which improved to 0.31 ± 0.43 logMAR ( P < 0.0001) and 0.12 ± 0.14 logMAR ( P < 0.0001) at 1 and 6 months after surgery, respectively. CONCLUSIONS: This study shows that the DMEK Tzamalis punch can be used as an effective and safe method for DMEK graft preparation with a shallow learning curve that allows it to be successfully performed by relatively inexperienced surgeons.


Asunto(s)
Queratoplastia Endotelial de la Lámina Limitante Posterior , Distrofia Endotelial de Fuchs , Humanos , Queratoplastia Endotelial de la Lámina Limitante Posterior/métodos , Lámina Limitante Posterior/cirugía , Endotelio Corneal/trasplante , Yogur , Agudeza Visual , Recuento de Células , Estudios Retrospectivos , Distrofia Endotelial de Fuchs/cirugía
11.
J Clin Med ; 11(10)2022 May 10.
Artículo en Inglés | MEDLINE | ID: mdl-35628805

RESUMEN

BACKGROUND: Corneal transplantation in keratoconus (KC) patients is generally considered to be successful with a high grade of patient satisfaction. Long-term studies suggest a 6% to 11% probability of KC recurrence manifested by keratometric instability and progressive corneal ectasia. METHODS: We propose to review the frequency, risk factors for the development, and the surgical options for the correction of high irregular astigmatism due to late graft ectasia following penetrating keratoplasty (PK). RESULTS: Post-keratoplasty ectasia is characterized by increasing corneal steepening with myopic shift and high irregular astigmatism, developing years or decades after PK, mostly occurring in KC patients. Contact lenses may adequately improve the visual acuity; however, because these patients are often elderly and intolerant to hard contact lenses, ultimately a surgical correction is proposed to the patient. Compressive suture and corneal wedge resection may improve corneal astigmatism, but the outcomes are unpredictable and often temporary. For this reason, a larger PK graft is often proposed for surgical rehabilitation with the consequence of removing more of the recipient's healthy endothelium and exposing the patient to a renewed immunogenic stimulus and short-term graft failure for endothelial decompensation. More recently, lamellar keratoplasty using various techniques has been proposed as an alternative to PK in order to maximize the visual outcomes and minimize the complications. CONCLUSIONS: Management of advanced corneal ectasia is a significant challenge for corneal surgeons. Many surgical approaches have been developed, so there is a large arsenal of surgical operations to correct post-PK ectasia. Among them, large-diameter anterior lamellar keratoplasty may be a viable, safer, and effective alternative to PK for the correction of post-keratoplasty ectasia.

13.
BMC Ophthalmol ; 22(1): 59, 2022 Feb 08.
Artículo en Inglés | MEDLINE | ID: mdl-35135528

RESUMEN

BACKGROUND: To report a case of malignant glaucoma that developed after gonioscopy-assisted transluminal trabeculotomy (GATT). CASE PRESENTATION: An 85-year-old male pseudophakic patient affected by pseudoexfoliative glaucoma (PEXG), unresponsive to medical glaucoma treatment, underwent uneventful GATT surgery. On the first day after surgery, the eye showed a shallow central and peripheral anterior chamber (AC) with a raised intraocular pressure (IOP) measured at 55 mmHg. Optical coherence tomography and ultrasound biomicroscopy confirmed the diagnosis of malignant glaucoma. Laser iridotomy, posterior capsulotomy and hyaloidotomy were performed, and the patient was treated with atropine sulphate 1%, maximum topical and systemic ocular hypotensive drugs with no improvement in the IOP. Subsequently, the patient underwent pars plana anterior vitrectomy, resulting in deepening of the AC with opening of the iridocorneal angle and decrease of the IOP. No further postoperative complications were recorded, and the IOP remained controlled 12 months after surgery without antiglaucoma medications. CONCLUSIONS: Despite the minimally invasive profile of GATT, malignant glaucoma may develop after this procedure. Early recognition and prompt treatment are mandatory for preventing permanent visual loss.


Asunto(s)
Glaucoma de Ángulo Abierto , Glaucoma , Trabeculectomía , Anciano de 80 o más Años , Cámara Anterior , Estudios de Seguimiento , Glaucoma/etiología , Glaucoma/cirugía , Glaucoma de Ángulo Abierto/cirugía , Gonioscopía , Humanos , Presión Intraocular , Masculino , Estudios Retrospectivos , Trabeculectomía/efectos adversos , Resultado del Tratamiento
15.
Graefes Arch Clin Exp Ophthalmol ; 260(2): 545-551, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34487226

RESUMEN

PURPOSE: To report the preliminary results of gonioscopy-assisted transluminal trabeculotomy (GATT) in eyes with chronic angle-closure glaucoma (CACG). METHODS: Retrospective, single-center, case series of GATT procedures is performed on patients with CACG. The primary outcome was intraocular pressure (IOP). Success was defined as IOP reduction >30% from baseline at 6 and 12 months with (qualified) or without (complete) glaucoma medication. Secondary outcomes were best-corrected visual acuity (BCVA), visual field (VF), peripheral anterior synechiae (PAS), medications, and complications. RESULTS: Fifteen eyes (15 patients) with a minimum follow-up of 1 year were included for the analysis. Preoperatively, the mean (±SD) IOP was 30.27 (±4.20) mmHg and 15.20 (±2.08) mmHg at 1 year postoperatively (p<0.001). The mean (±SD) percentage of IOP reduction from baseline was 49% (±9.41). At 6 and 12 months, the success rate complete and qualified was 93% (73% and 20%) and 100% (73% and 27%), respectively. BCVA and VF mean deviation were comparable before and after surgery (p=0.167 and p= 0.710, respectively). The median (range) number of glaucoma drugs decreased from 3 (3-4) before to 0 (0-2) after GATT (p<0.001). The absence of PAS was observed in 80% of patients after surgery. Transient hyphema was a common complication requiring aspiration in one case. CONCLUSION: At 12 months of follow-up, our preliminary results indicate that GATT in CACG effectively reduces the IOP and the number of medication with a low risk of complications. Following ab interno trabeculotomy, an open-angle without PAS was achieved in the majority of patients. TRIAL REGISTRATION NUMBER: nr. 2016/0010904.


Asunto(s)
Glaucoma de Ángulo Cerrado , Glaucoma de Ángulo Abierto , Trabeculectomía , Estudios de Seguimiento , Glaucoma de Ángulo Cerrado/diagnóstico , Glaucoma de Ángulo Cerrado/cirugía , Glaucoma de Ángulo Abierto/cirugía , Gonioscopía , Humanos , Presión Intraocular , Estudios Retrospectivos , Resultado del Tratamiento
16.
Can J Ophthalmol ; 57(6): 402-407, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-34283965

RESUMEN

OBJECTIVE: To describe 5-year postoperative outcomes of a small series of Fuchs' endothelial dystrophy (FED) patients who underwent Descemet stripping only (DSO) with a scraping technique. METHODS: DSO technique and early clinical outcomes of 5 patients with mild central FED were previously reported. In the same cohort of patients, corrected distance visual acuity, central corneal ultrasound pachymetry, refractive spherical equivalent, endothelial cell count, slit-lamp photography, and corneal Scheimpflug tomography were obtained at baseline, 6 months, and 1 and 5 years postoperatively. No patient used topical Rho-kinase inhibitors at any point in time. RESULTS: One patient (20%) failed to clear the early postoperative edema and 1 patient (20%) developed corneal decompensation 1 year after DSO. Both patients underwent successful Descemet stripping automated endothelial keratoplasty. The remaining 3 patients had stable corrected distance visual acuity, progressive reduction of corneal ultrasound pachymetry, and mild myopic shift of the refractive spherical equivalent over the follow-up time. An improvement in posterior stromal opacities and irregular astigmatism was observed, whereas posterior elevation at Scheimpflug tomography remained unchanged. CONCLUSION: At 5 years postoperatively, DSO with a scraping technique and without Rho-kinase inhibitors resulted in sustained clinical amelioration of 3 of 5 patients (60%) with mild FED.


Asunto(s)
Queratoplastia Endotelial de la Lámina Limitante Posterior , Distrofia Endotelial de Fuchs , Humanos , Distrofia Endotelial de Fuchs/diagnóstico , Distrofia Endotelial de Fuchs/tratamiento farmacológico , Distrofia Endotelial de Fuchs/cirugía , Quinasas Asociadas a rho , Queratoplastia Endotelial de la Lámina Limitante Posterior/métodos , Estudios de Seguimiento , Paquimetría Corneal , Endotelio Corneal
17.
J Clin Med ; 12(1)2022 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-36615130

RESUMEN

INTRODUCTION: We report a case and discuss the clinical characteristics and treatment of spontaneous Descemet membrane detachment (DMD). CASE DESCRIPTION: We describe a rare case of spontaneous DMD in a patient with prior anterior uveitis and provide a review of the current literature. A 20-year-old woman with a prior history of anterior uveitis presented with vision loss in the left eye. The slit-lamp examination showed corneal edema secondary to DMD, confirmed by anterior segment optical coherence tomography (AS-OCT). The patient underwent an intracameral injection of 20% sulphur hexafluoride (SF6) with complete resolution of the DMD. Although rare, several cases of spontaneous DMD have been reported in the literature, mostly occurring after intraocular surgery. We searched the Pubmed database (1949-2021) for peer-reviewed publications relevant to the topic of spontaneous DMD. DISCUSSION: The pathogenesis of spontaneous DMD is complex and depends on several factors. It can occur due to anatomical anomalies, inflammatory disease, trauma, chemical injuries, and surgical or laser procedures. In most cases, early diagnosis and appropriate management led to resolution.

18.
Clin Ophthalmol ; 15: 3649-3659, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34483653

RESUMEN

PURPOSE: To analyse the efficacy of subretinal injection of recombinant tissue plasminogen activator (rtPA) and gas tamponade for the displacement of submacular haemorrhage (SMH). METHODS: This single-centre, retrospective, case series included 25 consecutive patients (25 eyes) who underwent pars plana vitrectomy (PPV) with subretinal rtPA injection and 20% sulphur hexafluoride (SF6) tamponade. The primary outcome was SMH displacement rate, defined as the absence of subretinal blood within (complete) or outside (partial) 1500 µm centred on the fovea one month after PPV. Secondary outcomes were final best-corrected visual acuity (BCVA), central macular thickness (CMT), recurrence probability, number of anti-vascular endothelial growth factor (VEGF) injections after PPV, and intra- and post-operative complications. RESULTS: Successful displacement was obtained in all 25 eyes (100%), with complete and partial displacement obtained in 15 (60%) and 10 (40%), respectively. BCVA significantly improved from 1.81±0.33 to 1.37±0.52 LogMar at 12 months from surgery (p = 0.001). The bivariate correlation analysis revealed that earlier the surgery had better visual prognosis at the end of the follow-up (p = 0.007). CMT significantly decreased from 922 ± 273.69 µm at baseline to 403.53 ± 314.64 µm at 12 months follow-up (p < 0.001). SMH recurrence was observed in two (8%) patients with a mean survival time of 11.6 ± 0.339 months and a cumulative survival probability of 88% at the end of follow-up. After PPV, the mean number of anti-VEGF injections was 3.00 ± 0.957 with no correlation with final visual acuity (p = 0.365). No intraoperative complications were recorded. Only one patient developed open funnel retinal detachment 40 days after primary PPV. CONCLUSION: PPV with rtPA subretinal injection and SF6 tamponade is a safe and effective technique in displacing acute SMHs secondary to neovascular AMD. It is recommended to perform within 14 days from the onset of the symptoms to achieve BCVA improvement at 12 months and proper imaging to plan future anti-VEG treatment.

19.
Diagn Microbiol Infect Dis ; 101(3): 115470, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34352436

RESUMEN

Rapid identification of causative microorganisms of microbial keratitis (MK) and knowledge of the most common local pathogens are prerequisites for rational antimicrobial therapy. We retrospectively reviewed the characteristics of MK diagnosed at the IRCCS Arcispedale Santa Maria Nuova of Reggio Emilia (Italy) in a 5-years period, where the Ophthalmologist Unit is a reference center for corneal infections. During the study period, 183 MK were evaluated through corneal scrapings cultures. The positivity rate was 54,1%. A total of 107 microorganisms have been isolated: Acanthamoeba species was the etiologic agent in 19 cases. Pseudomonas aeruginosa and Staphylococcus aureus were more frequently isolated in bacterial keratitis, while Fusarium spp., Candida albicans, and Alternaria alternata were predominant among the fungal isolates. Strict cooperation between ophthalmologists and clinical microbiologists is advisable to allow the best diagnostic approach for MK.


Asunto(s)
Queratitis/diagnóstico , Queratitis/epidemiología , Centros de Atención Terciaria/estadística & datos numéricos , Acanthamoeba/aislamiento & purificación , Amebiasis/diagnóstico , Amebiasis/epidemiología , Bacterias/clasificación , Bacterias/aislamiento & purificación , Infecciones Bacterianas del Ojo/diagnóstico , Infecciones Bacterianas del Ojo/epidemiología , Infecciones Fúngicas del Ojo/diagnóstico , Infecciones Fúngicas del Ojo/epidemiología , Hongos/clasificación , Hongos/aislamiento & purificación , Humanos , Italia/epidemiología , Queratitis/microbiología , Queratitis/parasitología , Estudios Retrospectivos , Factores de Riesgo
20.
J Clin Med ; 10(11)2021 May 31.
Artículo en Inglés | MEDLINE | ID: mdl-34072679

RESUMEN

This study compared the outcomes of cataract surgery with intraocular lens (IOL) implantation in patients with juvenile idiopathic arthritis (JIA)-associated chronic anterior uveitis treated with antimetabolite drugs and systemic corticosteroids (Non-Biological Group) versus patients treated with antimetabolites and biological drugs (Biological Group). A cohort of patients with cataract in JIA-associated uveitis undergoing phacoemulsification with IOL implantation was retrospectively evaluated. The main outcome was a change in corrected distance visual acuity (CDVA) in the two groups. Ocular and systemic complications were also recorded. The data were collected preoperatively and at 1, 12, and 48 months after surgery. Thirty-two eyes of 24 children were included: 10 eyes in the Non-Biological Group and 22 eyes in the Biological Group. The mean CDVA improved from 1.19 ± 0.72 logMAR preoperatively to 0.98 ± 0.97 logMAR at 48 months (p = 0.45) in the Non-Biological Group and from 1.55 ± 0.91 logMAR preoperatively to 0.57 ± 0.83 logMAR at 48 months (p = 0.001) in the Biological Group. The postoperative complications, including synechiae, cyclitic membrane, IOL explantation, glaucoma, and macular edema, were not statistically different between the two groups. An immunosuppressive treatment with biological drugs can improve the visual outcome after cataract surgery in patients with JIA-associated uveitis, but it does not significantly reduce postoperative ocular complications.

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