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1.
Graefes Arch Clin Exp Ophthalmol ; 260(9): 2897-2904, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35445877

RESUMEN

PURPOSE: To objectively evaluate changes in lens densitometry in eyes with neovascular age-related macular degeneration (n-AMD) treated with repeated intravitreal ranibizumab injections during a 12-month period and to compare the results with those in untreated healthy fellow eyes and healthy control eyes. METHODS: In this prospective study, the 36 treated eyes and the 37 untreated fellow eyes of 38 patients with n-AMD and the 32 control eyes of 32 healthy individuals were analyzed. Lens densitometry was evaluated using the Scheimpflug imaging. All data in both groups regarding lens densitometry were recorded at baseline and 12 months. RESULTS: The mean densitometry of zone 1 in the treated eyes of patients had increased significantly at 12 months compared with the baseline (baseline: 9.3 ± 1.5, 12 months: 11.9 ± 1.7, p = .004) and was significantly greater than those measurements in the fellow eyes (9.8 ± 1.6 p = .02) and control eyes (9.6 ± 1.9, p = .01) at 12 months as well. There were no significant differences in terms of densitometry values between the fellow and control eyes at baseline and 12 months (for all, p > .05). CONCLUSIONS: Our results objectively demonstrate early nuclear lens density changes using with Scheimpflug images in eyes with n-AMD that were treated with repeated ranibizumab injections for 12 months.


Asunto(s)
Degeneración Macular , Degeneración Macular Húmeda , Inhibidores de la Angiogénesis , Humanos , Inyecciones Intravítreas , Estudios Prospectivos , Ranibizumab , Tomografía de Coherencia Óptica , Agudeza Visual
2.
Cutan Ocul Toxicol ; 37(1): 84-89, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28697703

RESUMEN

BACKGROUND: To evaluate the effects of intravitreal aflibercept (IVA) on retinal vessel diameters in patients with neovascular age-related macular degeneration (AMD). DESIGN, SETTING, AND PARTICIPANTS: A retrospective study conducted at the Kutahya Dumlupinar University Faculty of Medicine included 15 eyes of 15 patients with treatment naive neovascular AMD. METHODS: All eyes received IVA injections once per month for 3 months; untreated contralateral eyes were used as controls. The central retinal artery equivalent (CRAE), central retinal vein equivalent (CRVE), and artery-vein ratio (AVR) values were measured using a computer-based program before the first IVA injection and 30 days after the first, second, and third injections. The main outcome measurements were the central macular thickness (CMT), best-corrected visual acuity (BCVA), choroidal thickness, CRAE, CRVE, and AVR. RESULTS: Significant vasoconstriction of the retinal arterioles was observed in all eyes treated with IVA when compared to baseline (p = 0.009). However, no significant differences were found for CRVE or AVR throughout the study period in treated eyes. In the control group, all parameters measured during each visit were similar to baseline measurements (p > 0.05). The mean BCVA significantly improved at the end of the loading dose of IVA, when compared to baseline (p = 0.006). After the IVA injections, the mean CMT and choroidal thickness were significantly reduced at all visits, compared to baseline (p < 0.001). CONCLUSIONS: The current study showed that IVA led to significant retinal arteriolar vasoconstriction and choroidal thinning, which may cause reduced retinal blood flow.


Asunto(s)
Inhibidores de la Angiogénesis/administración & dosificación , Degeneración Macular/tratamiento farmacológico , Receptores de Factores de Crecimiento Endotelial Vascular/administración & dosificación , Proteínas Recombinantes de Fusión/administración & dosificación , Vasos Retinianos/efectos de los fármacos , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Vasos Retinianos/fisiología , Vasoconstricción/efectos de los fármacos , Agudeza Visual/efectos de los fármacos
3.
Int Ophthalmol ; 38(6): 2381-2388, 2018 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-29030794

RESUMEN

PURPOSE: To investigate the association between VEGF gene polymorphisms and the responses to treatment with intravitreal ranibizumab (IVR) in patients with diabetic macular edema (DME). METHODS: This prospective study, conducted at the Kutahya Dumlupinar University Faculty of Medicine, included 95 patients with DME that were treated with IVR and 32 patients without DME despite proliferative diabetic retinopathy (PDR). The participants were divided into three groups: DME with non-proliferative diabetic retinopathy, DME with PDR, and PDR without DME; patients with DME who were treated with IVR were further divided into two groups based on their response to the treatment. Each patient was genotyped for five single nucleotide variations (SNVs) in VEGF-A: rs2010963, rs2146323, rs10434, rs833069, and rs6921438. RESULT: There was a statistically significant difference in allelic distribution of VEGF-A rs833069 polymorphism in relation to the severity of diabetic retinopathy (DRP) (p = 0.031). The allelic distribution of VEGF-A rs2146323 polymorphism tended to be associated with the severity of DRP (p = 0.069). There were no statistically significant differences in the allelic distribution of the studied five SNVs in DME patients regarding the patients' responses to IVR therapy. CONCLUSIONS: There is no association between the studied VEGF-A SNVs and the responses to IVR therapy in DME. However, the VEGF-A rs833069 gene polymorphism has a clear association with the severity of diabetic retinopathy.


Asunto(s)
Inhibidores de la Angiogénesis/uso terapéutico , Retinopatía Diabética/genética , Edema Macular/genética , Polimorfismo de Nucleótido Simple , Ranibizumab/uso terapéutico , Factor A de Crecimiento Endotelial Vascular/genética , Retinopatía Diabética/diagnóstico por imagen , Retinopatía Diabética/tratamiento farmacológico , Femenino , Técnicas de Genotipaje , Humanos , Inyecciones Intravítreas , Edema Macular/diagnóstico por imagen , Edema Macular/tratamiento farmacológico , Masculino , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa , Estudios Prospectivos , Tomografía de Coherencia Óptica , Agudeza Visual
4.
Int Ophthalmol ; 38(2): 655-661, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28397146

RESUMEN

PURPOSE: The aim of this study was to determine plasma thiol-disulphide homoeostasis in patients with age-related cataract (ARC) and compare the results of the patients with healthy subjects. Plasma malondialdehyde (MDA) levels and catalase (CAT) activity were also investigated. METHODS: The study included 53 cataract patients and 52 healthy volunteers. Native thiol-disulphide exchanges were determined using a novel and automated method. CAT activity was determined using the method described by Aebi, and MDA levels were calculated using the thiobarbituric acid method. RESULT: Native thiol and total thiol levels were significantly lower in the cataract patients compared with the controls (p < 0.001, p = 0.002, respectively). The disulphide levels of the cataract patients were significantly higher than the controls (p = 0.002). The ratios of disulphide/native thiol and disulphide/total thiol were statistically higher in the cataract patients compared with the control group (p < 0.001, p < 0.001, respectively). Furthermore, CAT activity was significantly lower in the cataract patient group compared with the control group (p < 0.001), and MDA levels were insignificantly higher in the patient group (p = 0.581). CONCLUSIONS: Our study showed that dynamic thiol-disulphide homoeostasis has shifted towards disulphide formation, as a result of thiol oxidation in ARC patients. The present study is the first to measure thiol-disulphide homoeostasis in ARC patients with a novel automated assay. This study supports the hypothesis that cataract is an oxidative disorder. Further studies are required in order to examine the relationship between oxidative stress and the development of cataract formation.


Asunto(s)
Catarata/sangre , Disulfuros/sangre , Compuestos de Sulfhidrilo/sangre , Anciano , Estudios de Casos y Controles , Catalasa/sangre , Catarata/fisiopatología , Femenino , Homeostasis/fisiología , Humanos , Masculino , Malondialdehído/sangre , Persona de Mediana Edad , Estrés Oxidativo/fisiología
5.
Cutan Ocul Toxicol ; 36(1): 88-95, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26912022

RESUMEN

A 55-year-old male presented with a complaint of a painless and sudden loss of vision in the right eye. Fundus photography revealed loss of transparency and edema in the central macular region. Optical coherence tomography showed increased reflectivity and diffused swelling in the inner retinal layers. Fluorescein angiography revealed a large area of capillary non-perfusion with a pronounced hypofluorescent area with distinct borders. To our knowledge, this is the first report of a hemorrhagic macular infarction associated with marijuana and pregabalin misuse.


Asunto(s)
Anticonvulsivantes/efectos adversos , Cannabis/efectos adversos , Etanol/efectos adversos , Infarto/inducido químicamente , Mácula Lútea/irrigación sanguínea , Pregabalina/efectos adversos , Humanos , Infarto/patología , Mácula Lútea/efectos de los fármacos , Mácula Lútea/patología , Masculino , Persona de Mediana Edad , Mal Uso de Medicamentos de Venta con Receta/efectos adversos , Enfermedades de la Retina/inducido químicamente , Enfermedades de la Retina/patología , Agudeza Visual/efectos de los fármacos
7.
Int Ophthalmol ; 37(1): 159-163, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27160271

RESUMEN

The aims of this study were to determine the central corneal thickness (CCT) and corneal curvature (CC) in patients with rheumatoid arthritis (RA), and to evaluate the correlations between the CCT, CC, RA activity, and RA duration. Fifty-four RA patients (104 eyes; 35 with dry eye, 69 without dry eye) and 21 age- and gender-matched control patients (42 eyes) were enrolled in the study. The CCT and CC were measured by ultrasonic pachymeter and autorefractor-keratometer, respectively. RA activity was assessed using the disease activity score (DAS) 28. The independent samples' t test and Pearson correlation analysis were used in the statistical analyses. Mean CCTs were found to be 535.88 ± 38.24, 530.46 ± 32.88, 538.64 ± 40.64, and 543.40 ± 40.66 µm in all RA eyes, RA with dry eyes, RA without dry eyes, and control eyes, respectively. Mean keratometry (K) readings were found to be 43.84 ± 1.76, 43.73 ± 1.23, 43.90 ± 1.98, and 43.60 ± 1.48 D in all RA eyes, RA with dry eyes, RA without dry eyes, and control eyes, respectively. There were no significant differences in CCT values (p values, 0.293, 0.134, and 0.550, respectively) and K readings (p values, 0.435, 0.681, and 0.402, respectively) between the RA and control eyes. These findings led us to the conclusion that the CCT and K readings were not significantly associated with DAS (p values, 0.678 and 0.812, respectively) and RA duration (p values, 0.108 and 0.080, respectively). Our results show that CCTs and CCs were not significantly different between the RA eyes and control eyes. CCTs and CCs were also not associated with RA activity and RA duration.


Asunto(s)
Artritis Reumatoide/patología , Córnea/patología , Adulto , Anciano , Artritis Reumatoide/complicaciones , Estudios de Casos y Controles , Síndromes de Ojo Seco/etiología , Síndromes de Ojo Seco/patología , Femenino , Humanos , Presión Intraocular , Masculino , Persona de Mediana Edad , Índice de Severidad de la Enfermedad , Tonometría Ocular
8.
Graefes Arch Clin Exp Ophthalmol ; 254(7): 1339-43, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27084084

RESUMEN

PURPOSE: We aimed to evaluate the serum prolidase activity (SPA), malondialdehyde (MDA), and catalase levels in patients with pseudoexfoliation (PEX) syndrome. METHOD: Thirty-four patients with PEX syndrome and thirty-eight age- and gender-matched healthy subjects were included in this prospective clinical study. Each participant underwent full ophthalmologic examination. The SPA, serum MDA, and catalase levels were measured and compared between the patients with PEX syndrome and healthy subjects. RESULTS: The SPA was significantly lower in patients with PEX syndrome compared to healthy controls (14.1 ± 7.1 vs. 30.1 ± 4.3 ng/ml; p = 0.001). The mean serum MDA values the of PEX syndrome and control groups were comparable (28.7 ± 5.7 vs. 30.4 ± 5.3 nmol/ml, respectively; p = 0.185). The mean serum catalase level tended to be lower in the PEX group compared to healthy controls (0.12 ± 0.02 vs. 0.21 ± 0.05 k/ml, respectively; p = 0.077). CONCLUSION: Our findings suggest that the SPA was significantly lower in patients with PEX syndrome compared to healthy controls. Thus, prolidase may have a role in the pathogenesis of the PEX syndrome.


Asunto(s)
Dipeptidasas/biosíntesis , Síndrome de Exfoliación/enzimología , Presión Intraocular/fisiología , Estrés Oxidativo , Anciano , Biomarcadores/sangre , Catalasa/sangre , Ensayo de Inmunoadsorción Enzimática , Femenino , Estudios de Seguimiento , Humanos , Masculino , Malondialdehído/sangre , Persona de Mediana Edad , Estudios Prospectivos
9.
Int Ophthalmol ; 36(5): 707-12, 2016 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-26854320

RESUMEN

The purpose of the study was to compare the accuracy of various biometric formulas for predicting postoperative refraction determined using applanation A-scan ultrasound. This retrospective comparative study included 485 eyes that underwent uneventful phacoemulsification with intraocular lens (IOL) implantation. Applanation A-scan ultrasound biometry and postoperative manifest refraction were obtained in all eyes. Biometric data were entered into each of the five IOL power calculation formulas: SRK-II, SRK/T, Holladay I, Hoffer Q, and Binkhorst II. All eyes were divided into three groups according to axial length: short (≤22.0 mm), average (22.0-25.0 mm), and long (≥25.0 mm) eyes. The postoperative spherical equivalent was calculated and compared with the predicted refractive error using each biometric formula. The results showed that all formulas had significantly lower mean absolute error (MAE) in comparison with Binkhorst II formula (P < 0.01). The lowest MAE was obtained with the SRK-II for average (0.49 ± 0.40 D) and short (0.67 ± 0.54 D) eyes and the SRK/T for long (0.61 ± 0.50 D) eyes. The highest postoperative hyperopic shift was seen with the SRK-II for average (46.8 %), short (28.1 %), and long (48.4 %) eyes. The highest postoperative myopic shift was seen with the Holladay I for average (66.4 %) and long (71.0 %) eyes and the SRK/T for short eyes (80.6 %). In conclusion, the SRK-II formula produced the lowest MAE in average and short eyes and the SRK/T formula produced the lowest MAE in long eyes. The SRK-II has the highest postoperative hyperopic shift in all eyes. The highest postoperative myopic shift is with the Holladay I for average and long eyes and SRK/T for short eyes.


Asunto(s)
Biometría , Implantación de Lentes Intraoculares , Óptica y Fotónica , Facoemulsificación , Seudofaquia/fisiopatología , Refracción Ocular/fisiología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Masculino , Persona de Mediana Edad , Periodo Posoperatorio , Reproducibilidad de los Resultados , Estudios Retrospectivos
10.
Ren Fail ; 37(2): 245-8, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25394531

RESUMEN

OBJECTIVES: To evaluate dry eye symptoms and clinical tear film alterations in patients with chronic renal failure (CRF). MATERIALS AND METHODS: Thirty-five non-diabetic CRF patients undergoing hemodialysis, and 31 healthy individuals were enrolled. An ocular surface disease index questionnaire (OSDI) was administered, and after a complete ocular examination, Schirmer and tear break-up time (TBUT) tests were performed. RESULTS: OSDI scores were significantly higher (p<0.01) and TBUT tests were significantly lower (p=0.01) in CRF patients than in the control group. Schirmer test results were also lower in the CRF patients group, but lacked statistical significance (p=0.20). CONCLUSION: Patients with CRF should be advised to obtain an ophthalmic examination, especially for dry eye.


Asunto(s)
Calcinosis , Conjuntiva , Síndromes de Ojo Seco , Fallo Renal Crónico , Diálisis Renal/efectos adversos , Lágrimas/metabolismo , Adulto , Anciano , Calcinosis/diagnóstico , Calcinosis/epidemiología , Calcinosis/etiología , Calcinosis/metabolismo , Estudios de Casos y Controles , Conjuntiva/metabolismo , Conjuntiva/patología , Técnicas de Diagnóstico Oftalmológico , Síndromes de Ojo Seco/diagnóstico , Síndromes de Ojo Seco/epidemiología , Síndromes de Ojo Seco/etiología , Síndromes de Ojo Seco/metabolismo , Femenino , Humanos , Fallo Renal Crónico/complicaciones , Fallo Renal Crónico/epidemiología , Fallo Renal Crónico/metabolismo , Fallo Renal Crónico/terapia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Diálisis Renal/métodos , Reproducibilidad de los Resultados , Factores de Riesgo , Encuestas y Cuestionarios , Turquía/epidemiología
11.
J Craniofac Surg ; 26(3): 789-91, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25974788

RESUMEN

AIM: The aim of this study was to evaluate the functional and/or anatomic success rate as well as complications of anterior suspended flaps modification for external dacryocystorhinostomy (DCR). METHODS: This is a retrospective study that included 50 eyes of 47 patients who underwent anterior suspended flap external DCR surgery for nasolacrimal duct obstruction. Diagnosis of nasolacrimal duct obstruction was made through irrigation of the nasolacrimal drainage system. Anterior flaps of lacrimal sac and nasal mucosa, as large as possible, were created in all patients. Posterior flaps of lacrimal sac and exposed nasal mucosa were excised. After suturing the anterior flaps with two 6-0 Vicryl sutures, the third suture was passed through the orbicularis oculi at the subcutaneous level on 1 edge of incision, then from the middle of the anterior flaps and the other edge of the incision to the suspended anterior flaps. RESULTS: The success rate of 50 surgeries was 96%. In 37 eyes, no problems were reported during the surgery and the modified external DCR was performed successfully. The success rate of the modified external DCR was 100% in those patients. The average operation time was 34 ± 8.2 minutes. CONCLUSIONS: These results suggest that anterior suspended flap external DCR is a simple, safe technique with a very high success rate and a satisfactory surgical time.


Asunto(s)
Dacriocistorrinostomía/métodos , Enfermedades del Aparato Lagrimal/cirugía , Mucosa Nasal/trasplante , Colgajos Quirúrgicos , Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
12.
J Glaucoma ; 33(5): 325-333, 2024 May 01.
Artículo en Inglés | MEDLINE | ID: mdl-38129944

RESUMEN

PRCIS: This study investigated the retinal segmental thicknesses in individuals with pseudoexfoliation syndrome and ocular hypertension. Maximum thinning was found at 6 mm inferior to the inner plexiform layer. This layer is very important for the early diagnosis of glaucoma. PURPOSE: To analyze the thickness of the peripapillary retinal nerve fiber layer and 8 macular layers using optical coherence tomography in eyes with ocular hypertension (OHT) and pseudoexfoliation syndrome (PXS) and healthy eyes and to evaluate between-group differences. MATERIALS AND METHODS: In a prospective study, the macular segmentation of retinal layers in 120 eyes of 120 participants was performed automatically using current Heidelberg Spectralis optical coherence tomography software, which provides measurements for 8 retinal layers. Thickness maps divided into nine subfields (ie, 1, 3, and 6 mm) were extracted from the software for each retinal layer and compared between groups. RESULTS: The thinnest macular layers appeared in the ocular hypertensive PXS, normotensive PXS, and OHT groups in that order. In the inner retinal layers (macular retinal nerve fiber layer, ganglion cell layer, and inner plexiform layer), statistically significant differences emerged between the PXS and control groups in all quadrants of the 3 and 6 mm areas. No significant difference between the OHT group and control group appeared except in the 6 mm temporal quadrant of the inner plexiform layer (IPL). Receiving operating characteristic analysis revealed quadrants with high area-under-the-curve values at 3 and 6 mm in macular segments in all 3 groups compared with the control group. CONCLUSION: In macular segment analysis, the inner retinal layers showed the most thinning in patients with ocular hypertensive PXS. According to receiving operating characteristic curve analysis, examinations performed 6 mm inferior to the IPL, as the quadrant with the highest area under the curve in all 3 groups, are critical for the early diagnosis of glaucoma.


Asunto(s)
Síndrome de Exfoliación , Presión Intraocular , Fibras Nerviosas , Hipertensión Ocular , Células Ganglionares de la Retina , Tomografía de Coherencia Óptica , Humanos , Síndrome de Exfoliación/diagnóstico , Síndrome de Exfoliación/complicaciones , Tomografía de Coherencia Óptica/métodos , Estudios Prospectivos , Hipertensión Ocular/diagnóstico , Hipertensión Ocular/fisiopatología , Femenino , Masculino , Células Ganglionares de la Retina/patología , Fibras Nerviosas/patología , Anciano , Presión Intraocular/fisiología , Persona de Mediana Edad , Campos Visuales/fisiología , Curva ROC , Tonometría Ocular
13.
Arq Bras Oftalmol ; 86(1): 60-67, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-35417511

RESUMEN

PURPOSE: To evaluate the effectiveness of intravitreal aflibercept treatment for macular edema with and without serous retinal detachment due to branch retinal vein occlusion. METHODS: Thirty-seven eyes with branch retinal vein occlusion treated with intravitreal aflibercept injection for macular edema were evaluated retrospectively. The patients were divided into two groups according to whether they showed serous retinal detachment on spectral domain optical coherence tomography. Pro re nata regimen was applied after 1 dose of intravitreal aflibercept injection. After the initial injection, control treatments were administered at months 1, 2, 3, 6, and 12. The best-corrected visual acuity and central macular thickness were measured. RESULTS: Fifteen patients had serous retinal detachment, and 22 with macular edema only (non-serous retinal detachment). The central macular thickness was significantly greater in the group with than in the group without serous retinal detachment (811.73 ± 220.68 µm and 667.90 ± 220.68 µm, respectively, p=0.04). The difference between the groups disappeared from the third month. The central macular thickness was similar between the two groups at the last control treatment (407.27 ± 99.08 µm and 376.66 ± 74.71 µm, p=0.66). The best-corrected visual acuity increased significantly in both groups. No significant difference was found between the two groups in terms of the best-corrected visual acuities at baseline and the final control. CONCLUSION: The intravitreal aflibercept treatment was highly effective in improving best-corrected visual acuity and central macular thickness in patients with branch retinal vein occlusion-induced macular edema independent of serous retinal detachment.


Asunto(s)
Edema Macular , Desprendimiento de Retina , Oclusión de la Vena Retiniana , Humanos , Edema Macular/tratamiento farmacológico , Edema Macular/etiología , Desprendimiento de Retina/tratamiento farmacológico , Desprendimiento de Retina/etiología , Oclusión de la Vena Retiniana/complicaciones , Oclusión de la Vena Retiniana/tratamiento farmacológico , Estudios Retrospectivos
14.
Rom J Ophthalmol ; 67(1): 92-96, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37089796

RESUMEN

Aim: Trabeculectomy is the gold standard surgery for achieving target intraocular pressure (IOP) in glaucoma. Besides the efficiency of trabeculectomy, intraoperative or postoperative complications such as, suprachoroidal hemorrhage, vitreous loss, malignant glaucoma, flat anterior chamber, hypotony, choroidal detachment, endophthalmitis, are also quite important. We present the management of excessive conjunctival and scleral retraction during trabeculectomy: an unusual intraoperative complication. Case report: A 66-year-old woman was referred to our glaucoma unit with progression of primary open angle glaucoma. No known systemic disease was observed in her history except hypertension. The best-corrected visual acuity was 20/ 63 in the right eye and 20/ 20 in the left eye. IOP was 27 mmHg and 19 mmHg (with bimatoprost timolol fixed combination and brimonidine tartrate) in the right and left eyes, respectively. We planned trabeculectomy with mitomycin C for the right eye of the patient. Excessive conjunctival and scleral retraction occurred during surgery. Autograft conjunctival tissue was prepared to cover for bare sclera area. No complications were observed in postoperative period. Seronegative spondyloarthropathy (HLA-B27-negative) was diagnosed postoperatively as a result of consultations. Discussion: Conjunctival retraction is observed as a postoperative complication after trabeculectomy. Postoperative conjunctival retraction can cause bleb leakage and hypotony, as well as predispose to infection. Nowadays, micro invasive glaucoma surgery (MIGS) is gaining popularity, especially because of its reduced complication rate compared to trabeculectomy. However, considering the IOP reduction rates, MIGS has been indicated in mild and moderate glaucoma. Conclusions: We presented the management of excessive conjunctival and scleral retraction during trabeculectomy, which has not been reported earlier. Conjunctival autograft transplantation is useful to manage this complication.


Asunto(s)
Glaucoma de Ángulo Abierto , Glaucoma , Hipotensión Ocular , Trabeculectomía , Humanos , Femenino , Anciano , Trabeculectomía/efectos adversos , Esclerótica/cirugía , Glaucoma de Ángulo Abierto/diagnóstico , Glaucoma de Ángulo Abierto/cirugía , Glaucoma de Ángulo Abierto/complicaciones , Glaucoma/diagnóstico , Glaucoma/cirugía , Glaucoma/complicaciones , Presión Intraocular , Hipotensión Ocular/etiología , Hipotensión Ocular/cirugía , Complicaciones Posoperatorias/cirugía , Complicaciones Intraoperatorias/cirugía , Estudios Retrospectivos , Resultado del Tratamiento
15.
Rom J Ophthalmol ; 67(4): 354-361, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38239424

RESUMEN

Objective: To evaluate the progress of cataract surgery in a training institution providing tertiary care since the removal of pandemic restrictions. To evaluate ocular and demographic characteristics of cataract cases in a tertiary care teaching institution since the lifting of pandemic restrictions. Methods: Patients who underwent cataract surgery in our clinic in the pre-pandemic period September 2019-March 2020 (group 1, n=353) and in the post-pandemic period September 2021-March 2022 (group 2, n=459) were retrospectively screened. The cases were operated by two educator ophthalmologists and residents. The main parameters evaluated were cataract morphology, surgical parameters, and posterior capsular rupture complications. Results: The case rate increased by 30% in group 2 once pandemic restrictions were relaxed. Preoperative best corrected visual acuity (BCVA) in groups 1 and 2 was 0.840±0.63 and 1.26±0.75 log MAR, respectively (p<0.001). The percentage of mature cataracts was 15.3% in group 1 and 31.2% in group 2 (p<0.001). Significantly higher cumulative dissipated energy (CDE), total aspiration time, and fluid amount (p<0.001 for all) were found in group 2. During the training phase, 25.2% of the cases in group 1 and 24.6% in group 2 were performed by resident doctors (p=0.870). Residents in groups 1 and 2 had mature cataract case rates of 6.7% and 13.3%, respectively (p<0.001). The incidences of posterior capsule rupture in the instances of residents was 3.4% in group 1 and 4.4% in group 2 (p=0.498). A negative correlation (r=-0.424, p<0.001) between CDE and BCVA and a positive correlation (r=0.40, p<0.001) between cataract hardness and CDE were both found. Conclusions: The number of cataract surgeries increased after the COVID-19 pandemic. Poor vision and increasing rates of mature cataracts are other effects of this backlog. Residents have to deal with challenging cases. Our results are just the tip of the iceberg. Urgent planning is needed to deal with the remaining cases. Abbreviations: COVID-19 = coronavirus infection, PCR = posterior capsular rupture, BCVA = best corrected visual acuity, IOP = intraocular pressure, CDE = cumulative dissipated energy, TAT = total aspiration time, ZD = zonular separation.


Asunto(s)
Extracción de Catarata , Catarata , Facoemulsificación , Humanos , Pandemias , Facoemulsificación/métodos , Estudios Retrospectivos , Atención Terciaria de Salud , Carga de Trabajo , Agudeza Visual , Extracción de Catarata/métodos , Catarata/epidemiología , Catarata/complicaciones
16.
Middle East Afr J Ophthalmol ; 29(3): 141-146, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-37408719

RESUMEN

PURPOSE: Evaluating the quality, dependability, and popularity of YouTube videos about trabeculectomy. METHODS: A simulated user search for trabeculectomy videos on YouTube was conducted using the keywords "trabeculectomy, trabeculectomy surgery for glaucoma, and trabeculectomy surgery." Hundred out of the one hundred and fifty videos met the criteria and were analyzed. To assess quality and reliability, each video was evaluated by two independent reviewers using the DISCERN (scale, 1-5), Journal of the American Medical Association (JAMA; scale, 0-4), and Global Quality (GQ; scale, 1-5) criteria. The popularity of the videos was evaluated by Video Power Index (VPI). Videos were further classified into three groups based on the source of their upload. RESULTS: Of the 100 analyzed videos, 50 were uploaded to the system by doctors, 40 by health institutions and 10 by patients. Fifty-seven percent are videos with surgical content. The mean DISCERN score was 44.84 ± 8.14 the mean JAMA score was 2.08 ± 0.67, and the mean Global Quality score was 2.02 ± 0.72. Although some videos provided adequate information, the majority of the videos were rated as fair. While the DISCERN, JAMA, GQS scores were statistically higher in videos uploaded by doctors than in videos uploaded by patients (P < 0.01), VPI was higher in videos uploaded by patients (P = 0.003). Nonsurgical videos had the highest rate of likes and comments (P < 0.05). No substantial difference in scoring was observed between the 2 independent reviewers (P < 0.05). CONCLUSION: Videos with high popularity had low information quality and reliability. This situation presupposes video sharing in a more understandable language for patients.


Asunto(s)
Glaucoma , Medios de Comunicación Sociales , Trabeculectomía , Estados Unidos , Humanos , Reproducibilidad de los Resultados , Glaucoma/cirugía
17.
J Reprod Med ; 56(1-2): 65-70, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21366130

RESUMEN

OBJECTIVE: Polycystic ovary syndrome (PCOS) is an endocrinopathy characterized by chronic anovulation and hyperandrogenism. Hormonal changes can affect ocular surface and tear functions. We evaluated dry eye symptoms, clinical tear film alterations, and tear clearance in patients with PCOS. STUDY DESIGN: Thirty-five women with PCOS and 22 healthy individuals were enrolled in the study. An ocular surface disease index (OSDI) questionnaire was administered, and after the routine ophthalmologic examination tear film breakup time (TBUT) and Schirmer tests were performed. Tear clearance was assessed via fluorescein dye disappearance test (FDDT). RESULTS: No difference was observed in Schirmer test between the groups, however OSDI scores were significantly higher (p = 0.01) and TBUT was significantly lower (p = 0.01) in PCOS patients than in the control women. FDDTs were not different between the PCOS and control subjects. CONCLUSION: Our findings suggest that patients diagnosed with PCOS should be advised to obtain an ophthalmic examination, especially for dry eye.


Asunto(s)
Hiperandrogenismo/complicaciones , Síndrome del Ovario Poliquístico/complicaciones , Lágrimas/fisiología , Adulto , Índice de Masa Corporal , Síndromes de Ojo Seco/diagnóstico , Síndromes de Ojo Seco/etiología , Femenino , Fluoresceína , Colorantes Fluorescentes , Hormona Folículo Estimulante/sangre , Humanos , Hormona Luteinizante/sangre , Síndrome del Ovario Poliquístico/fisiopatología , Relación Cintura-Cadera
18.
Int Ophthalmol ; 30(3): 279-84, 2010 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-19967548

RESUMEN

Epidemiologic studies have revealed a higher incidence of cataracts in estrogen-deprived postmenopausal women, although the pathogenic mechanism has not yet been elucidated. Apoptosis of lens epithelial cells has been associated with cataractogenesis. The aim of the study reported here was to investigate the effect of estrogen replacement therapy (ERT) on lens epithelial cell apoptosis in an experimental rat model. Forty female Wistar rats were randomized into four groups: ERT (17beta-estradiol, 10 microg/kg/day) for 3 months without ovariectomy (group 1) and with ovariectomy (group 2); only ovariectomy (group 3); sham operated (group 4). At the end of the third month, all rats were sacrificed in estrous cycle, as determined by the vaginal smear test, and their right eyes were enucleated. Enucleated eyes were analyzed by immunohistochemical methods for the expression of terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end (TUNEL), caspase-3, and bcl-2 labeling. The TUNEL, caspase-3, and bcl-2 staining scores were found to increase in group 3 rats following the ovariectomy compared to the sham-operated group. The ERT decreased these scores in rats with or without the ovariectomy; however, these differences were not statistically significant. These data suggest that estrogen does not significantly affect lens epithelial cell apoptosis. Further studies are needed to gain a better understanding of the protective mechanism of estrogen and to provide new ideas for the treatment and prevention of cataract.


Asunto(s)
Apoptosis/efectos de los fármacos , Células Epiteliales/patología , Terapia de Reemplazo de Estrógeno/métodos , Cristalino/patología , Animales , Antioxidantes/farmacología , Caspasa 3/metabolismo , Células Epiteliales/efectos de los fármacos , Células Epiteliales/enzimología , Femenino , Humanos , Cristalino/efectos de los fármacos , Cristalino/enzimología , Ovariectomía , Estrés Oxidativo , Posmenopausia , Ratas , Ratas Wistar
19.
Eurasian J Med ; 52(1): 100-102, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32158325

RESUMEN

Intraoperative floppy iris syndrome (IFIS) is described by three characteristics: floppy iris that billows in reaction to intraocular fluid currents during phacoemulsification surgery, flaccid iris stroma that tends to prolapse through well-constructed surgical incisions, and progressive pupillary miosis despite preoperative pharmacologic dilatation. A 63-year-old man presented with decreased vision in both his eyes. Ophthalmic examination revealed bilateral nuclear cataract. He was prescribed silodosin for the management of benign prostatic hyperplasia a month ago. Consecutive cataract surgery was planned at a 2-week time interval. All features of IFIS were encountered in both eyes of the patient during phacoemulsification surgery. IFIS was successfully managed by the aid of an iris retractor, and a 20/20 final visual acuity was achieved postoperatively in both eyes of the patient. To the best of our knowledge, this is the first study about bilateral IFIS associated with silodosin intake. Ophthalmologists and urologists prescribing silodosin should be aware of this possible association.

20.
Beyoglu Eye J ; 4(3): 210-212, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-35187461

RESUMEN

Subconjunctival abscess is a rare form of ocular infections. Subconjunctival abscesses often develop in the eyes with previous surgery or trauma. It is extremely rare in patients without surgery or trauma. In this study, we aimed to present a rare case of subconjunctival abscesses associated with spontaneous bacterial conjunctivitis. The patient was admitted to the hospital with complaints of redness, swelling and burning in two eyes. He said he used antibiotic drops for about a week, but his complaints did not decline. A subconjunctival abscess was detected in the right eye. There was no history of previous ocular surgery and trauma. Abscess drainage and subconjunctival antibiotic injection were performed. Oral and topical antibiotics were prescribed. There was no growth in culture. The third week was a complete recovery. In conclusion, spontaneous subconjunctival abscess formation should be considered in the differential diagnosis in unhealed eyes after bacterial conjunctivitis.

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