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BACKGROUND: The TsiogkaSpaeth (TS) grid is a new, low-cost, and easy to access portable test for visual field (VF) screening which could be used by clinicians in everyday clinical practice. Our study aimed to determine the validity of an innovative screening grid test for identifying neurological disease-associated VF defects. METHODS: We enrolled two groups of participants: We assessed the one eye of ten consecutive adult patients with different types of neurological disease associated VF defects and ten eyes of controls in each group. The TS grid test was performed in each group. Sensitivity, specificity, and positive and negative predictive values of the TS grid scotoma area were assessed using the 24-2 VF Humphrey field analyzer (HFA) as the reference standard. RESULTS: Sensitivity and specificity of the TS grid test were 100% and 90.91%, respectively. The area under curve was 0.9545 with 95% CI 0.87-1.00. There was a significant correlation between the number of missed locations on the TS grid test and the visual field index of the HFA 24-2 (r = 0.9436, P < .0001). CONCLUSION: The sensitivity and specificity of the TS grid test were high in detecting VF defects in neurological disease. The TS grid test appears to be a reliable, low-cost, and easily accessed alternative to traditional VF tests in diagnosing typical neurological patterns of visual field defects. It would be useful in screening subjects for neurologically derived ocular morbidity in everyday clinical practice and in remote areas deprived of specialized health care services.
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Sensibilidade e Especificidade , Testes de Campo Visual , Campos Visuais , Humanos , Masculino , Feminino , Testes de Campo Visual/métodos , Pessoa de Meia-Idade , Campos Visuais/fisiologia , Adulto , Idoso , Escotoma/diagnóstico , Doenças do Sistema Nervoso/diagnóstico , Transtornos da Visão/diagnóstico , Reprodutibilidade dos TestesRESUMO
PURPOSE: To investigate changes of corneal thickness spatial profile (CTSP), corneal volume (CV) distribution, and total corneal refractive power (TCRP) over a course of 60 months after uneventful Descemet membrane endothelial keratoplasty (DMEK). METHODS: In our prospective, comparative study, sixty DMEK cases without intraoperative and postoperative complications and with complete 60-month follow-up were included (group 1). CTSP at corneal apex (CCT) and at 2 mm, 4 mm, 6 mm, and 8 mm rings, CV in 3 mm, 5 mm, 7 mm, and 10 mm zones, and TCRF in 2 mm, 4 mm 6 mm, and 8 mm zones were evaluated preoperatively and at 3, 6, 12, 24, and 60 months postoperatively. The 60-month results were compared to an age-matched group of uncomplicated pseudophakic eyes (group 2; n = 20). RESULTS: The CCT and CTSP at 2, 4, and 6 mm increased significantly at 60 months compared to 3-month outcomes (P < 0.001). Similarly, CV increased significantly in 3 mm, 5 mm, and 7 mm zones at 60 months compared to 3 months outcomes (P < 0.001). The TCRP showed in all zones a significant decrease at 3 months (P < 0.001) followed by a continuous and significant increase at 60 months (P < 0.001). The 60-month CCT and CTSP at 2 mm were similar to group 2 (P ≥ 0.094). CONCLUSION: Sixty months after uneventful DMEK, CT within the central 2 mm zone and CV at 3 mm zone were similar to uncomplicated pseudophakic eyes. A continuous and statistically significant increase of TCRP was observed in all measured zones after the 3-month examination.
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Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior , Distrofia Endotelial de Fuchs , Contagem de Células , Lâmina Limitante Posterior/cirurgia , Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior/métodos , Endotélio Corneano , Seguimentos , Distrofia Endotelial de Fuchs/diagnóstico , Distrofia Endotelial de Fuchs/cirurgia , Humanos , Estudos Prospectivos , Estudos Retrospectivos , Acuidade VisualRESUMO
PURPOSE: The aim of this study was to determine whether glaucoma patients after trabeculectomy could benefit more from subconjunctival injections of bevacizumab than 5-FU or placebo. METHODS AND RESULTS: Fifty-one eyes of 51 patients were recruited for primary MMC (0.2 mg/mL for 1 min) augmented trabeculectomy. 17 patients were randomly assigned to receive 1.25 mg (0.05 mL) of bevacizumab augmentation, 21 patients were assigned to receive 0.1 mL of 50 mg/mL 5-FU and 13 patients were assigned to a control group receiving a normal saline injection as a placebo. Initial recruitment included 58 patients, but seven patients had to be excluded from the study for various reasons. Postoperative follow up of IOP and bleb characteristics was carried out at 1 day, 1 week, 3 weeks, 6 weeks, 6 months and 1 year after surgery. All analyses where carried out by two masked clinicians. IOP reduction was statistically significant (p < 0.05) across all three groups between baseline visit and final 1-year postoperative visit. There was no significant difference of the final average IOP values between the three groups. Bleb evaluation was made using the Moorfields bleb grading system (MBGS) after 1 year follow up. Central bleb area was statistically greater in the Bevacizumab group when compared with the 5-FU group but not with the placebo group. The vascularity of the central bleb was significantly different between the groups with the Bevacizumab group showing the least vascularity. Vascularity of the peripheral bleb was also decreased in the Bevacizumab group when compared with the placebo group but not with the 5-FU group. CONCLUSION: The 12-month IOP results showed no significant differences between the groups of patients after Bevacizumab, 5-FU or placebo to augment primary MMC enhanced trabeculectomy. However, by the analysis of bleb morphology there was a significant difference in terms of central bleb area and vascularity.
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Trabeculectomia , Humanos , Inibidores da Angiogênese/uso terapêutico , Bevacizumab/efeitos adversos , Fluoruracila , Seguimentos , Pressão Intraocular , Mitomicina/uso terapêutico , Estudos Prospectivos , Trabeculectomia/métodos , Fator A de Crescimento do Endotélio VascularRESUMO
PURPOSE: To report the outcomes of secondary Descemet Membrane Endothelial Keratoplasty (DMEK) performed for failed primary DMEK. METHODS: The medical records of all patients undergoing secondary DMEK due to failure of primary DMEK were reviewed. Reasons for failure were sought and best-corrected visual acuity (BCVA), endothelial cell density (ECD) and complications of secondary DMEK were evaluated. RESULTS: A total of 10 cases undergoing secondary DMEK following failed primary DMEK were identified. Presumed reasons for failure included donor ECD ≤ 2300 cells/mm2 (n = 4), difficulty during graft preparation (n = 2), graft detachment (n = 2), acute angle closure due to retroiridal air dislocation (n = 1), inverse graft positioning (n = 1) and phacoemulsification (n = 1). Eyes with low visual potential were not excluded from the study group. We should note that one patient (case no7) had both low ECD and graft detachment as reasons for failure and as a result he is counted twice. Median BCVA (decimal fraction) increased from 0.1 (range, 0.01; 0.3) to 0.5 (0.05; 1.0) at one month and remained stable thereafter. A BCVA of 0.5 or higher was achieved in 7 cases at the final follow-up. Mean ECD fell from 2628 ± 284 cells/mm2 to 1391 ± 252cells/mm2 at 6 months (47% reduction) and 959 ± 225cells/mm2 at 24 months (64% reduction) (P ≤ 0.028). Complications included the incomplete removal of the primary graft and mild iris bleeding, decompensation of a preexisting primary open-angle glaucoma and retroiridal air dislocation. CONCLUSIONS: Apart from low donor ECD, surgical challenges, i.e., difficulty with graft preparation, inverse graft positioning, and retroiridal air dislocation, were main reasons for failure of primary DMEK. Secondary DMEK showed a good safety profile and reasonable visual outcomes.
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Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior , Distrofia Endotelial de Fuchs , Glaucoma de Ângulo Aberto , Contagem de Células , Lâmina Limitante Posterior/cirurgia , Endotélio Corneano , Distrofia Endotelial de Fuchs/cirurgia , Rejeição de Enxerto/diagnóstico , Humanos , Masculino , Estudos Retrospectivos , Acuidade VisualRESUMO
PURPOSE: The purpose of this study was to compare the anatomical and functional outcomes of ranibizumab versus aflibercept for the treatment of diabetic macular edema (DME) in a long-term follow-up. METHODS: Participants in this prospective study were 112 treatment naïve patients with DME, who received treatment with either intravitreal ranibizumab (n = 54) or aflibercept (n = 58). The demographic data, the best-corrected visual acuity (BCVA) and spectral-domain optical coherence tomography (SD-OCT) characteristics were evaluated at baseline and at month 1, 2, 3, 6, 12, and 18 post treatment, while factors affecting visual outcome were determined using multivariate analysis. RESULTS: At month 18, the mean BCVA of ranibizumab-treated eyes increased 7.9 letters compared to 6.9 letters for eyes receiving aflibercept, with greater number of injections in ranibizumab group (9.2 ± 2.3 vs. 7.6 ± 2.1 injections in the ranibizumab and aflibercept group respectively, p = 0.0002). The difference in letters between the two groups was not statistically significant, nor the difference in central subfield thickness at month 18. Factors associated with poorer BCVA were found to be increasing age, HbA1c ≥7.5%, increasing central retinal thickness and disrupted ellipsoid zone. CONCLUSIONS: Ranibizumab and aflibercept presented similar anatomical and functional outcomes in 18-month follow-up in patients with DME. It is important to determine factors, affecting VA, so as to provide individualized treatment.
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Inibidores da Angiogênese/uso terapêutico , Diabetes Mellitus Tipo 2/tratamento farmacológico , Retinopatia Diabética/tratamento farmacológico , Edema Macular/tratamento farmacológico , Ranibizumab/uso terapêutico , Receptores de Fatores de Crescimento do Endotélio Vascular/uso terapêutico , Proteínas Recombinantes de Fusão/uso terapêutico , Idoso , Diabetes Mellitus Tipo 2/diagnóstico por imagem , Retinopatia Diabética/diagnóstico por imagem , Feminino , Humanos , Injeções Intravítreas , Edema Macular/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Tomografia de Coerência Óptica , Resultado do Tratamento , Acuidade Visual/efeitos dos fármacosRESUMO
PURPOSE: To introduce the use of corneal epithelial mapping by anterior segment optical coherence tomography (AS-OCT) as an ancillary testing for the identification of areas of loose epithelial adherence in recurrent corneal erosion syndrome (RCES), and the subsequent treatment of the latter with anterior stromal puncture (ASP). METHODS: Five patients were presented with RCES following traumatic corneal abrasions. Following resolution of acute episodes, AS-OCT epithelial mapping was performed revealing in all patients an area of increased epithelial thickness (hot spot) corresponding to the site of loose attachment of the epithelium to the epithelial basement membrane. ASP to the area of epithelial thickening, as delineated by the epithelial map, was performed. RESULTS: To date, none of the patients has shown any signs of disease recurrence over a period ranging from 6 to 20 months following the application of epithelial map-guided ASP. CONCLUSIONS: AS-OCT epithelial mapping can reveal the exact area of loose epithelial adherence in RCES. Hence, epithelial mapping can delineate the target area for treatment with ASP and may decrease the high failure rates of ASP.
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Segmento Anterior do Olho/cirurgia , Distrofias Hereditárias da Córnea/cirurgia , Substância Própria/cirurgia , Epitélio Corneano/cirurgia , Procedimentos Cirúrgicos Oftalmológicos/métodos , Punções , Adulto , Segmento Anterior do Olho/diagnóstico por imagem , Substância Própria/diagnóstico por imagem , Epitélio Corneano/diagnóstico por imagem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tomografia de Coerência Óptica/métodosRESUMO
BACKGROUND: To report midterm outcomes of strabismus strategy for management of diplopia in chronic progressive external ophthalmoplegia and specific surgical planning rationale. DESIGN: Retrospective interventional case series. RESULTS: Two patients, a 26-year-old male and a 36-year-old female, diagnosed with chronic progressive external ophthalmoplegia presented with blepharoptosis and intermittent diplopia. Ocular motility examination was significant for bilateral profound impairment of adduction with relative preservation of abduction, infraduction and elevation. Control of intermittent exotropia gradually worsened over 3 and 1.5 years of follow-up, respectively, in the presence of documented stability of the angle of exodeviation. Strabismus surgery involving modest amounts of bilateral medial rectus resection and lateral rectus recessions was undertaken. Surgical intervention was successful in controlling alignment in primary position and alleviating diplopia and asthenopia after 9 and 8 years of follow-up time, respectively, despite slow progression of ophthalmoplegia. CONCLUSION: Bilateral selective impairment of adduction and intermittent exotropia may be the presenting ocular motility disturbance in chronic progressive external ophthalmoplegia. Properly designed strabismus surgery may provide sustainable, in the midterm, control of alignment and symptomatic relief in selected patients with CPEO.
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Diplopia/cirurgia , Movimentos Oculares/fisiologia , Músculos Oculomotores/cirurgia , Oftalmoplegia Externa Progressiva Crônica/cirurgia , Refração Ocular/fisiologia , Estrabismo/cirurgia , Acuidade Visual , Adulto , Diplopia/etiologia , Diplopia/fisiopatologia , Feminino , Humanos , Masculino , Músculos Oculomotores/fisiopatologia , Oftalmoplegia Externa Progressiva Crônica/complicações , Oftalmoplegia Externa Progressiva Crônica/fisiopatologia , Estudos Retrospectivos , Estrabismo/complicações , Estrabismo/fisiopatologiaRESUMO
PURPOSE: To describe the outcomes of endothelial keratoplasty (EK) for bullous keratopathy in eyes with a retained angle-supported anterior chamber intraocular lens (acIOL). METHODS: Among 263 consecutive EK procedures, 7 DMEK and 11 DSAEK procedures were identified in eyes with an acIOL and included in the present retrospective case series. Pre- and postoperative status including ocular history, anatomical outcome and complications as well as best-corrected visual acuity was evaluated. RESULTS: Ocular history included complicated cataract surgery (n = 11), ocular trauma (n = 4) and primary intracapsular cataract extraction (n = 3). Surgery-related complications included primary graft failure (n = 1), graft detachment (n = 1), endophthalmitis (n = 1) and allograft rejection (n = 1). A clear cornea at the final examination (14 ± 4 months) was observed in 14/18 (78%), while the visual outcome was limited due to significant ocular comorbidity in 9 out of 14 uncomplicated procedures. CONCLUSION: The presented short-term outcomes suggest that both DMEK and DSAEK are feasible in eyes with an angle-supported acIOL yielding an acceptable graft survival rate in the first postoperative year.
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Afacia Pós-Catarata/cirurgia , Doenças da Córnea/cirurgia , Ceratoplastia Endotelial com Remoção da Lâmina Limitante Posterior/métodos , Lentes Intraoculares , Acuidade Visual , Adulto , Idoso , Idoso de 80 Anos ou mais , Câmara Anterior , Afacia Pós-Catarata/complicações , Doenças da Córnea/complicações , Doenças da Córnea/diagnóstico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Resultado do TratamentoRESUMO
PURPOSE: To describe the use of equine pericardium as an off-label temporary emergency treatment of scleral and corneal perforations. METHODS: Three eyes of two male patients aged 34 and 38 years were included, i.e. a case with a history of severe bilateral thermal burn undergoing phacoemulsification complicated by tearing of the main port causing iris exposure and a patient with bilateral corneal perforation secondary to non-infectious corneal melt due to presumed ocular non-steroid anti-inflammatory drug abuse. The equine pericardium patch was soaked in balanced salt solution, trimmed and sutured over the perforated area with interrupted nylon 10-0 sutures. Slit-lamp photographs were taken before and immediately after surgery as well as at 2 and 5 months postoperatively. RESULTS: A watertight closure of the perforation was achieved in both cases. No evidence of infection, severe inflammation, leakage or hypotony was detected throughout the observation period. The first patient developed a pseudopterygium over the pericardium patch 5 months after surgery. The second patient showed at 2 months a bilateral melt of the pericardium and loosening of the sutures. After removal of the latter, a tectonically stable scar was evident in both eyes. CONCLUSION: Equine pericardium offered an effective primary treatment in cases of non-infectious globe perforation and may be considered when other materials, e.g. amniotic membrane, corneal or scleral allografts, are not readily available. Further studies may further elucidate the safety and efficacy profile of this biomaterial in ophthalmic surgery.
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Perfuração da Córnea/cirurgia , Procedimentos Cirúrgicos Oftalmológicos/métodos , Pericárdio/transplante , Adulto , Animais , Perfuração da Córnea/diagnóstico , Seguimentos , Humanos , Masculino , SuínosRESUMO
To evaluate the efficacy and outcomes of tectonic epikeratoplasty with use of ethanol-preserved corneal grafts for the management of perforated corneal melts. The present retrospective case series includes 10 eyes which underwent tectonic epikeratoplasty for perforated corneal melts. The stromal remainders of Descemet membrane endothelial keratoplasty (DMEK) and Descemet stripping automated endothelial keratoplasty (DSAEK) graft preparation were stored in 95% ethanol and used as emergency tectonic grafts for restoring globe integrity after sterile and infectious perforated corneal melts. In 6 cases with subtotal corneal melt, DMEK remainders (endothelium-denuded corneoscleral buttons) were used for 'limbus to limbus' tectonic epikeratoplasty and in 4 cases DSAEK remainders (anterior stroma) were used to seal focal perforated melts. Graft storage time was 5.1 ± 4.9 (ranging from 0.5 to 17) months. The surgeries were successful in all cases with restitution of the globe integrity. During the postoperative course 4 cases developed a graft melt (corneoscleral button for limbus to limbus tectonic epikeratoplasty, n = 3; lamellar patch, n = 1) within 2-6 months after the initial procedure. Three patients underwent successful repeat tectonic epikeratoplasty. In the fourth case of graft melt the globe was enucleated due to underlying expulsive haemorrhage and severe pain. The short-term results of the present case series suggest that the use of ethanol-stored stromal remainder of donor corneas after endothelial keratoplasty is an efficient temporary measure for tectonic restoration of perforated corneas.
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Córnea/cirurgia , Epiceratofacia , Etanol/química , Doadores de Tecidos , Adulto , Idoso , Feminino , Sobrevivência de Enxerto , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
PURPOSE: To describe a technique for intracorneal application of voriconazole into the supradescemetic space in a case of deep recalcitrant Candida parapsilosis keratitis of a penetrating cornea graft. METHODS: A deep intracorneal incision reaching the center of the corneal infiltrate was created with a 20-gauge MVR blade. Then, a 27-gauge hydrodissection cannula was inserted deep into the corneal pocket, and 0.1 ml of voriconazole 0.5 mg/ml was injected until a bullous detachment of Descemet membrane (DM) covered 1/3 of the graft's area. DM detachment was documented by anterior segment optical coherence tomography (AS-OCT). RESULTS: AS-OCT confirmed the creation of a drug depot in the supradescemetic space, which partially regressed during the following hours; 24 h after the injection, a complete reattachment of DM was documented. After 4 weeks, the stromal infiltrate has cleared completely and no signs of recurrence were observed 3 months after injection. CONCLUSION: In the present case, the supradescemetic voriconazole injection led to resolution of a deep recalcitrant fungal infiltrate. The herein described technique could be tried in similar cases, where an intrastromal injection is indicated, as it may offer a larger intracorneal drug depot.
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Antifúngicos/administração & dosagem , Candida parapsilosis/isolamento & purificação , Infecções Oculares Fúngicas/tratamento farmacológico , Ceratite/tratamento farmacológico , Voriconazol/administração & dosagem , Idoso de 80 Anos ou mais , Infecções Oculares Fúngicas/microbiologia , Humanos , Injeções Intraoculares , Ceratite/microbiologia , Masculino , Resultado do TratamentoRESUMO
Idiopathic congenital nystagmus is characterized by involuntary, periodic, predominantly horizontal oscillations of both eyes. We identified 22 mutations in FRMD7 in 26 families with X-linked idiopathic congenital nystagmus. Screening of 42 singleton cases of idiopathic congenital nystagmus (28 male, 14 females) yielded three mutations (7%). We found restricted expression of FRMD7 in human embryonic brain and developing neural retina, suggesting a specific role in the control of eye movement and gaze stability.
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Proteínas do Citoesqueleto/genética , Genes Ligados ao Cromossomo X , Proteínas de Membrana/genética , Nistagmo Congênito/genética , Encéfalo/embriologia , Encéfalo/metabolismo , Mapeamento Cromossômico , Cromossomos Humanos X , Proteínas do Citoesqueleto/fisiologia , Movimentos Oculares/genética , Movimentos Oculares/fisiologia , Feminino , Regulação da Expressão Gênica no Desenvolvimento , Ligação Genética , Humanos , Masculino , Proteínas de Membrana/fisiologia , Mutação/fisiologia , Linhagem , Retina/metabolismoRESUMO
PURPOSE: To evaluate the centration of the treatment zone after small incision lenticule extraction (SMILE) and compare it to femtosecond laser-assisted LASIK (FS-LASIK). METHODS: Sixty-nine myopic eyes of 36 patients who underwent SMILE were compared to 69 myopic eyes of 36 patients treated with FS-LASIK. All procedures were performed by a single surgeon using the VisuMax platform (Carl Zeiss Meditec, Jena, Germany). The Pentacam (Oculus Optikgeräte GmbH, Wetzlar, Germany) was used for preoperative and postoperative topography and pachymetry. The centration of the treatment zone was estimated pachymetrically by the distance of the thickest point on the corneal thickness differential map from the topographical center of the entrance pupil and the coaxial corneal light reflex. RESULTS: In SMILE cases, the mean decentration of the lenticule from the center of the entrance pupil was 0.326 ± 0.196 mm (range: 0.014 to 1.062 mm), whereas the distribution of the lenticule centers demonstrated a nasalization pattern. In FS-LASIK cases, this value was 0.452 ± 0.224 mm (range: 0.02 to 1.040 mm), whereas the ablation centers were distributed randomly. In relation to the coaxial corneal light reflex, the decentration in SMILE was 0.315 ± 0.211 mm (range: 0.0 to 1.131 mm), whereas FS-LASIK eyes demonstrated a mean decentration of 0.516 ± 0.254 mm (range: 0.103 to 1.265 mm). The decentration from the reference point of its technique (coaxial corneal light reflex in SMILE, the entrance pupil center in FS-LASIK) was significantly more extended in the FS-LASIK group (P < .001). CONCLUSIONS: The centration of the treatment zone as measured by the Pentacam was better for patient-controlled fixation during SMILE than active eye tracker-assisted FS-LASIK.
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Substância Própria/cirurgia , Cirurgia da Córnea a Laser/métodos , Topografia da Córnea , Ceratomileuse Assistida por Excimer Laser In Situ/métodos , Lasers de Excimer/uso terapêutico , Miopia/cirurgia , Aberrometria , Adulto , Idoso , Aberrações de Frente de Onda da Córnea/fisiopatologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Miopia/fisiopatologia , Adulto JovemRESUMO
INTRODUCTION: We present an unusual case of anterior migration of a solid silicone encircling band 9 years after scleral buckling surgery. MATERIALS AND METHODS: An 83-year old woman presented with acute onset of pain and discharge in her left eye. She had undergone cataract surgery complicated by endophthalmitis and managed with pars plana vitrectomy nine years earlier. RESULTS: The patient was treated with transection and removal of the extruding encircling band. Pain ceased within two days. Two weeks postoperatively, the conjunctiva was well adapted without any discharge, ocular motility was as preoperatively. DISCUSSION: Anterior migration of an encircling band through all four rectus muscle insertions is a very uncommon late complication following scleral buckling surgery. The remarkably good preservation of ocular motility in our case can be attributed to the slow advancement of the encircling band over nine years, which allowed a gradual reattachment of the rectus muscle insertions to the sclera.
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Corpos Estranhos no Olho/diagnóstico , Migração de Corpo Estranho/diagnóstico , Músculos Oculomotores/patologia , Celulite Orbitária/diagnóstico , Descolamento Retiniano/cirurgia , Recurvamento da Esclera/efeitos adversos , Elastômeros de Silicone/efeitos adversos , Idoso de 80 Anos ou mais , Corpos Estranhos no Olho/etiologia , Corpos Estranhos no Olho/cirurgia , Feminino , Migração de Corpo Estranho/etiologia , Migração de Corpo Estranho/cirurgia , Humanos , Músculos Oculomotores/cirurgia , Celulite Orbitária/etiologia , Celulite Orbitária/cirurgia , VitrectomiaRESUMO
INTRODUCTION: The aim of this study is to evaluate changes in corneal astigmatism, axial anterior corneal curvature, as well as changes in the anterior chamber depth and central corneal thickness, 2 months following the unilateral recession of medial rectus muscle in children. METHODS: Thirty-three children with esotropia were prospectively evaluated following unilateral medial rectus muscle recession, using Pentacam®. Comparisons were made between the operated and fellow unoperated eyes, pre, and postoperatively. The assessment was made for changes in the radius of axial curvature on major meridians at 3 and 3.5 mm from the optical corneal center in the mid-peripheral zone. Astigmatism changes of the anterior and posterior corneal surface were calculated using vector analysis software (astigMATIC®). ANOVA model was used to examine the interaction between age or central corneal thickness and postoperative changes in anterior and posterior surface corneal astigmatism. RESULTS: In the intervention group, changes in anterior and posterior corneal surface astigmatism were statistically significant, with a mean increase of 0.59Dx92 and 0.08Dx91, respectively. In the mid-peripheral corneal zone, there is an increase in the radius of anterior corneal axial curvature more evident nasally 3.5 mm from the corneal center on the horizontal meridian, with corresponding decrease superiorly and inferiorly at 3 and 3.5 mm from the corneal center on the vertical meridian. DISCUSSION: The changes in total astigmatism of the operated eyes are mainly attributed to the anterior corneal surface. These changes are associated with flattening in the 180 meridian of the cornea, leading to a shift to "with-the-rule" astigmatism.
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Astigmatismo , Córnea , Músculos Oculomotores , Humanos , Estudos Prospectivos , Masculino , Feminino , Córnea/patologia , Córnea/diagnóstico por imagem , Criança , Músculos Oculomotores/cirurgia , Músculos Oculomotores/fisiopatologia , Músculos Oculomotores/diagnóstico por imagem , Pré-Escolar , Astigmatismo/fisiopatologia , Astigmatismo/cirurgia , Procedimentos Cirúrgicos Oftalmológicos/métodos , Esotropia/fisiopatologia , Esotropia/cirurgia , Topografia da Córnea , Adolescente , Acuidade Visual/fisiologiaRESUMO
We conducted a systematic review and meta-analysis to assess the association between optical coherence tomography angiography (OCTA) parameters and acute coronary syndrome (ACS). Two independent reviewers searched the electronic databases (MEDLINE (Medical Literature Analysis and Retrieval System Online), Scopus, Embase (Excerpta Medica Database), Cochrane Library, ClinicalTrials.gov, and World Health Organization International Clinical Trials Registry Platform) from inception until April 2023. According to the inclusion criteria of this review, eligible were observational studies, randomized control trials, and registry/database studies that included the eyes of adult ACS patients and assessed OCTA parameters within the macula. The pooled standardized mean differences (SMD) between patients diagnosed with ACS and healthy controls with a confidence interval (CI) of 95% were calculated using the Hartung-Knapp-Sidik-Jonkman random-effects method. The heterogeneity was assessed by I2 and the Cochran Q and a random effects model was applied. Seven studies were eligible and included in our systematic review (n = 898), of which three were included in the meta-analysis (n = 341). The pooled SMD in the superficial vascular plexus (SVP), deep vascular plexus (DVP), and foveal avascular zone (FAZ) were -0.46 (95% CI: -0.94 to 0.01, p = 0.05, I2 = 0%, three studies), -0.10 (95% CI: -3.20 to 3.00, p = 0.75, I2 = 67%, two studies), and 0.43 (95% CI: -1.22 to 2.09, p = 0.38, I2 = 92%, three studies), respectively. Our findings suggest that there are no differences in OCTA metrics between ACS patients and healthy individuals.
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This scoping review investigates the relationship between subfoveal choroidal thickness (SFCT) and cataract surgery. We synthesized existing research to clarify SFCT changes following surgery and identify contributing factors. Our aim was to enhance understanding of the ocular changes associated with cataract surgery. A comprehensive database search identified studies on SFCT changes after uncomplicated cataract surgery, categorized as "SFCT changes after cataract surgery," "Factors influencing SFCT," "Macular thickness changes," and "Long-term changes." Quantitative data and findings were extracted from a total of 13 research articles. Studies on SFCT changes after cataract surgery provided valuable insights for the subject under review. Factors influencing SFCT changes included age, axial length, and cataract surgery. Macular thickness increased at various time points. Long-term SFCT changes varied among studies. The present research provides valuable insights into SFCT changes after cataract surgery. Factors including age, axial length, and cataract surgery consistently influence SFCT. The clinical relevance of macular thickness changes remains uncertain, and the influence of age, ocular pathologies, and patient populations is highlighted. Long-term changes in SFCT vary, suggesting a need for further research. Standardized measurement techniques and larger cohort studies are recommended to enhance comparability and generalizability. This review enhances understanding of ocular changes associated with cataract surgery and informs future research.
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Purpose The objective of this study was to examine the impact of uncomplicated phacoemulsification on macular choroidal thickness (CT) within the first three postoperative months and to investigate its relationship with postoperative cystoid macular edema (CME) in both glaucomatous and healthy subjects, utilizing swept-source optical coherence tomography (SS-OCT). Methods The non-randomized prospective study involved 82 patients, selected via convenience sampling from the First Department of Ophthalmology, Medical School of Athens, "G. Gennimatas" Hospital, Athens, Greece, between May 2018 and May 2022, undergoing phacoemulsification and intraocular lens (IOL) implantation. The inclusion criteria encompassed patients aged 50 years or above, with or without glaucoma. Patients with ocular pathologies that could influence macula or CT measurements were excluded. Data collection focused on retinal and CT variables of the macular area, measured using SS-OCT. Baseline measurements were established preoperatively, with follow-up assessments at one week, one month, and three months postoperatively to monitor CT and macular edema onset. Results A total of 82 eyes from 82 patients with a mean age of 79.1±8.3 years were included. The study population was divided into a glaucoma group (n=28 eyes) and a control group (n=54 eyes). Our findings indicate a consistently significant increase in macular CT measurements one month after cataract surgery, observed in both glaucomatous and non-glaucomatous eyes. In the first postoperative week, statistically significant changes in CT were observed only in patients with CME. Subsequently, at one-month interval, both patient groups, those with and without CME, exhibited statistically significant changes in CT across all macular sectors. CME was detected in 10 out of 28 eyes in the glaucoma group and in 16 out of 54 eyes in the control group. When evaluating the impact of postoperative CME on groups of glaucomatous and non-glaucomatous eyes, it was observed that glaucomatous eyes exhibited a significantly larger magnitude of change in subfoveal CT (SFCT) (p=0.03) at one month (relative to baseline) compared to non-glaucomatous eyes. There was also a 31% increase in the odds of developing CME for glaucoma patients; this result was not statistically significant (odds ratio {OR}, 1.31; 95% confidence interval {CI}, 0.50-3.47; p=0.57). Conclusions During the early postoperative period, the study revealed a significant increase in CT at one month after phacoemulsification in both glaucomatous and non-glaucomatous eyes. When CME was present, a significantly more pronounced magnitude of change in SFCT was observed at one month in glaucomatous eyes, as opposed to non-glaucomatous eyes. This observation suggests a possible selective susceptibility of glaucomatous eyes in the early postoperative period that requires further research.
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We present a case of painless bulbar conjunctival mass due to B-cell non-Hodgkin lymphoma (NHL), without systemic involvement, in a 76-year-old man. Following an excision biopsy, histopathologic examination and immunohistochemistry confirmed the diagnosis, prompting a referral for hemato-oncological assessment. The patient underwent comprehensive laboratory and imaging scans, subsequently receiving combined chemo-immunotherapy that resulted in complete remission to date. This case is reported as it is crucial to recognize that a conjunctival insult might emerge in neurofibromatosis type 1 (NF1) patients.