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1.
Am J Ophthalmol ; 193: 33-44, 2018 09.
Artículo en Inglés | MEDLINE | ID: mdl-29906430

RESUMEN

PURPOSE: Comparative evaluation of complications and visual outcomes following bilateral congenital cataract surgery in children up to 2 years of age with and without primary intraocular lens (IOL) implantation at 5 years follow-up. DESIGN: Randomized controlled clinical trial. METHODS: Sixty children (120 eyes) up to 2 years of age undergoing bilateral congenital cataract surgery were randomized to Group 1, primary aphakia (n = 30), or Group 2, primary IOL implantation (pseudophakia) (n = 30). A single surgeon performed surgeries with identical surgical technique. All patients were followed up regularly until 5 years postoperatively. At each follow-up, glaucoma, visual axis obscuration (VAO) requiring surgery, and inflammation (cell deposits, posterior synechiae) were assessed. Visual acuity was assessed until 5 years follow-up. The first operated eye was selected for statistical analysis. RESULTS: Median age of the patients at time of surgery was 5.11 months (aphakia group) and 6.01 months (pseudophakia group) (P = .56). Five years postoperatively, incidence of glaucoma was 16% and 13.8% in Groups 1 and 2 (P = .82). Incidence of posterior synechiae was significantly higher in the pseudophakia group (27.6%) compared to the aphakia group (8%) (P = .004). VAO requiring surgery was seen in 8% and 10.3% of eyes in Groups 1 and 2 (P = .76). Mean logMAR visual acuity at 5 years follow-up was 0.59 ± 0.33 and 0.5 ± 0.23 in Groups 1 and 2, respectively (P = .79). However, more eyes in the pseudophakic group started giving documentable vision earlier in their postoperative follow-ups. CONCLUSIONS: Incidence of postoperative complications was comparable between the groups, except for a higher incidence of posterior synechiae in pseudophakic eyes. Visual rehabilitation was faster in the pseudophakic group.


Asunto(s)
Afaquia Poscatarata/fisiopatología , Extracción de Catarata , Catarata/congénito , Implantación de Lentes Intraoculares , Complicaciones Posoperatorias , Seudofaquia/fisiopatología , Agudeza Visual/fisiología , Afaquia Poscatarata/terapia , Lentes de Contacto , Femenino , Humanos , Lactante , Lentes Intraoculares , Masculino , Factores de Tiempo , Resultado del Tratamiento , Trastornos de la Visión/rehabilitación
2.
Eye (Lond) ; 28(6): 720-7, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24675577

RESUMEN

AIM: To compare the development of posterior capsule opacification (PCO) between eyes with and without diabetes mellitus after single-piece hydrophobic acrylic intraocular lens implantation 4 years postoperatively. METHODS: In this prospective, observational case-control study carried out at Iladevi Cataract and IOL Research Centre, Ahmedabad, India, 75 consecutive eyes with diabetes mellitus (cases) were compared with 75 age-matched eyes with age-related cataract (controls). A detailed, preoperative and posterior segment evaluation was carried out in eyes with diabetes mellitus to detect the presence or absence of diabetic retinopathy (DR). The Mann-Whitney U-test was applied to compare the differences in the development of PCO between the two groups. RESULTS: There was no difference in median PCO between cases and controls at 1 month (2.0 vs 1.50, P<0.068), but cases had a higher median PCO at 12 months (2.95 vs 1.30, P<0.001). At 4 years, there was no significant difference in median PCO between cases and controls (3.75 vs 2.25, P=0.273). The duration of diabetes increased the incidence of PCO at 4 years (P=0.02). Severity of DR had no influence on the progress of PCO at 4 years (P=0.69). CONCLUSION: Diabetes mellitus did not increase the incidence of PCO at 4 years. The duration of diabetes increased the risk of PCO. The severity of retinopathy did not influence the development of PCO.


Asunto(s)
Opacificación Capsular/etiología , Complicaciones de la Diabetes , Diabetes Mellitus/diagnóstico , Cápsula Posterior del Cristalino/patología , Resinas Acrílicas , Opacificación Capsular/diagnóstico , Estudios de Casos y Controles , Retinopatía Diabética/diagnóstico , Femenino , Humanos , Implantación de Lentes Intraoculares , Masculino , Persona de Mediana Edad , Facoemulsificación , Estudios Prospectivos , Seudofaquia , Factores de Tiempo , Agudeza Visual/fisiología
3.
Eye (Lond) ; 25(2): 174-9, 2011 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21127507

RESUMEN

AIM: To determine the association between pseudoexfoliation (PEX) and peripheral vascular disease (PVD) among age-related cataract. SETTING: Iladevi Cataract and IOL Research Center, Ahmedabad, India. MATERIAL AND METHODS: An observational age-matched case-control study of 160 patients over 60 years of age with age-related cataract. A total of 40 subjects with PEX (cases) were compared with 120 subjects with cataract but without PEX (controls). A detailed medical history, including hypertension, diabetes mellitus, cerebrovascular stroke and ischaemic heart disease, was recorded. Ankle brachial index (ABI) was used to determine the risk of PVD among age-related cataract patients. Color Doppler imaging was performed on the brachial and dorsalis pedis artery to measure ABI and detect PVD. Least mean ABI was the main outcome measure, as low ABI indicates higher risk for PVD. The lowest mean ABI was measured for each subject. An ABI ratio of <0.90 was considered abnormal. The Mann-Whitney U-test and logistic regression were used for analysis. RESULTS: The lowest mean ABI in the controls was 0.98 ± 0.03 (SD; a range of 0.86-1.08) as compared with 0.88 ± 0.02 (SD) among the cases (a range of 0.79-0.92; P < 0.001). When compared with controls, cases had a lower ABI (P < 0.001) irrespective of the presence or absence of systemic illness. On multiple regression analysis adjusting for systemic illness, the presence of PEX increased the odds of a low ABI group 150 times (P < 0.001). CONCLUSION: Subjects with cataract and PEX had a significantly lower ABI as compared with controls (cataracts without PEX). PEX is associated with and may be a risk factor for PVD.


Asunto(s)
Catarata/complicaciones , Síndrome de Exfoliación/complicaciones , Enfermedades Vasculares Periféricas/etiología , Anciano , Anciano de 80 o más Años , Índice Tobillo Braquial , Arteria Braquial/diagnóstico por imagen , Estudios de Casos y Controles , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Ultrasonografía
4.
Eye (Lond) ; 24(8): 1391-5, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20431611

RESUMEN

PURPOSE: To subjectively evaluate the intraoperative characteristics of DisCoVisc during phacoemulsification in complex ocular environments. PATIENTS AND METHODS: In this prospective observational study, two experienced surgeons (ARV and CZ) performed phacoemulsification on 100 consecutive patients with cataract associated with complex ocular environments. Inclusion criteria were eyes with shallow anterior chambers (anterior chamber depth (ACD) of <2.1 mm), inadequate pupillary dilation (3 mm), dense cataract, and white mature cataract. The surgeons subjectively assessed the endpoints at each phase of phacoemulsification and various behavioural aspects of the ophthalmic viscosurgical devices (OVDs) were subsequently evaluated. RESULTS: The distribution was as follows: eyes with white mature cataract (n=18), eyes with grades 4 and 5 cataract (n=56), eyes with co-existing shallow ACD <2 mm (n=24), and co-existing small pupil size <2 mm (n=18). DisCoVisc behaved like a moderately cohesive viscoelastic in 94% of the cases. Injection of viscoelastic was easy in 38 (38%) eyes and very easy in 62 (62%) eyes. Visualization after the viscoelastic injection was excellent in 74% of the eyes. During phacoemulsification, DisCoVisc was moderately dispersive at all the stages of emulsification. The bag maintenance during IOL implantation was excellent in 56% eyes; IOL implantation was easy in 26% of the eyes and difficult in 20% of the eyes. Surgeons found viscoelastic removal easy in 68% of the eyes. At the time of OVD removal, DisCoVisc behaved like both a dispersive and a cohesive viscoelastic in 96% of the eyes. CONCLUSION: DisCoVisc provides both cohesive and dispersive properties. DisCoVisc alone, even in complex ocular environments, enabled the surgeon to achieve good intraoperative performance.


Asunto(s)
Facoemulsificación/instrumentación , Cámara Anterior/patología , Elasticidad , Humanos , Implantación de Lentes Intraoculares , Estudios Prospectivos , Sustancias Viscoelásticas
5.
Eye (Lond) ; 24(4): 686-94, 2010 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-19521430

RESUMEN

PURPOSE: The aim of this study was to identify risk factors for the development of cataract in young patients. SETTINGS: The study was undertaken at Iladevi Cataract and IOL Research Centre, Ahmedabad, Gujarat, India. METHODS: In a clinic-based observational study, 340 consecutive patients in the age group of 30-45 years presenting with nuclear, cortical, posterior subcapsular (PSC), mixed, and posterior polar cataract were prospectively studied. A detailed history regarding sunlight exposure, atopy, diabetes, steroid intake, myopia, glaucoma, and uveitis was elicited. RESULTS: The mean age of the patients was 40.2+/-4.6 years; there were 202 men. The major risk factors were atopy (25.6%), idiopathic (19.1%), high myopia (12.4%), atopy with steroid intake (10.9%), steroid usage (7.4%), sunlight exposure (3.8%), and diabetes mellitus (3.2%). PSC was observed in 53.5% eyes. Multinomial logistic regression revealed that atopy (P=0.016), steroid usage (P=0.100), and diabetes mellitus (P=0.076) documented higher odds for PSC. High myopia (P<0.001) and sunlight exposure (P=0.003) documented higher odds for nuclear cataract. CONCLUSION: Atopy was found to be the most common risk factor associated with the development of cataract in young individuals. PSC was the predominant type of cataract prevalent in young patients.


Asunto(s)
Catarata/epidemiología , Adulto , Catarata/complicaciones , Complicaciones de la Diabetes , Femenino , Glaucoma/epidemiología , Humanos , Hipersensibilidad/epidemiología , India/epidemiología , Modelos Logísticos , Masculino , Persona de Mediana Edad , Miopía/epidemiología , Estudios Prospectivos , Factores de Riesgo , Esteroides/efectos adversos , Luz Solar/efectos adversos , Uveítis/epidemiología
6.
Eye (Lond) ; 23(7): 1542-8, 2009 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-18949009

RESUMEN

PURPOSE: To report relationship of age group and axial length (AL) category to lens thickness values in eyes with a clear lens or different types of isolated cataract (nuclear, cortical, and posterior subcapsular (PSC)). Further, we evaluated lens thickness values on anterior chamber depth (ACD) in these eyes. DESIGN: Observational clinic-based study.MethodsAn observational study of 1442 eyes of 1442 individuals (816 eyes with isolated cataract and 626 eyes with clear lens) of those above 25 years of age was evaluated. AL and lens thickness were performed with an A-scan ultrasound after dilatation of the pupil, and manual optical pachymetry was used to measure ACD after dilatation of the pupil. MAIN OUTCOME MEASURES: Lens thickness. RESULTS: Multiple regression analysis revealed that with each decade of advancement in age, the lens thickness increased by 0.155 mm (P<0.001). The difference in lens thickness after adjusting for age group and AL category was less in cortical cataract by -0.25 mm (P<0.001) and PSC by -0.29 mm (P<0.001); With advancement in AL category, lens thickness decreased by 0.004 mm (P<0.001). After adjusting for all the parameters/variables, regression analysis revealed that as lens thickness increased, there was a significant decrease in ACD (mean -0.44 mm; P<0.001). CONCLUSIONS: Lens thickness was significantly greater in clear lenses when compared with isolated cataracts-greatest with nuclear cataract and least with PSC. Age group and AL category had a significant impact on the lens thickness of both cataract and clear lens. A significant decrease in ACD was found with the increase in lens thickness.


Asunto(s)
Envejecimiento/patología , Cámara Anterior/patología , Catarata/patología , Cristalino/patología , Factores de Edad , Anciano , Análisis de Varianza , Femenino , Humanos , India , Masculino , Persona de Mediana Edad , Análisis de Regresión
7.
Eye (Lond) ; 23(5): 1158-63, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-18583993

RESUMEN

PURPOSE: To compare the effects of cooled and room temperature BSS Plus solution on the central corneal thickness (CCT), anterior segment inflammation, and corneal endothelium in patients undergoing phacoemulsification. METHODS: In this prospective, randomized study, 70 consecutive patients undergoing phacoemulsification were assigned to one of two groups: Group 1 (controls) (n=35) received BSS Plus at a room temperature of 23 degrees C and Group 2 (cases; n=35) received BSS Plus cooled at 10 degrees C. In both the groups, the percentage of difference for CCT, absolute change in endothelial cell density, and coefficient of variation (CV) from preoperative to postoperative periods was analysed. The presence of anterior chamber flare and cells were compared postoperatively between the two groups. RESULTS: There was no significant difference in percentage change for CCT from preoperative to postoperative days 1, 7, and 30 between the two groups (P=0.30, P=0.56, and P=0.52). There was no statistically significant difference in the ECD loss (P=0.19) and CV (P=0.88) at 1 month between the two groups. The influence of the solutions on anterior chamber flare and cells was not statistically significant between the two groups on the first postoperative day (P=0.17, P=0.11). CONCLUSIONS: The temperature of the BSS Plus solution did not affect any parameter of the study. The use of moderately cooled BSS had no detectable effect and benefit on the outcome of the surgery.


Asunto(s)
Cámara Anterior/efectos de los fármacos , Frío , Córnea/efectos de los fármacos , Soluciones Oftálmicas/farmacología , Facoemulsificación/métodos , Anciano , Cámara Anterior/citología , Córnea/patología , Endotelio Corneal/citología , Endotelio Corneal/efectos de los fármacos , Femenino , Humanos , Inflamación/patología , Inflamación/terapia , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Irrigación Terapéutica/métodos
8.
Eye (Lond) ; 23(6): 1456-63, 2009 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-18806765

RESUMEN

PURPOSE: To evaluate the short-term protective effects of oestradiol against damages because of oxidative stress in human lens epithelial cells (LECs). METHODS: The central zone of human lens epithelium was obtained from the cataract surgery and cultured in MEM culture medium. These cultured LECs were treated with 17beta-oestradiol for varying time intervals from 1 to 5 min followed by treatment with H(2)O(2) (5 x 10(-6) M) in the culture medium. Catalase activity was measured to access the oxidative stress levels. RESULTS: LECs exposed to H(2)O(2) (5 x 10(-6) M) showed a fourfold increase in catalase activity (407.03+/-89.11 U/microg protein) after 6 h when compared to cultured unexposed LECs (97.124+/-9.4 U/microg protein). When the cultured LECs were treated with oestradiol (5 x 10(-8) M) before H(2)O(2) treatment, the increase in catalase activity was inhibited, whereas simultaneous and post-treatments showed no effect. The catalase activity of LECs pretreated with oestradiol for 1, 2, 3, and 5 min was 259.92+/-18.37, 200.24+/-14.39, 140.50+/-19.83, and 110.01+/-14.66, respectively (P<0.0001). CONCLUSION: Antioxidative enzymes are synthesized in response to the oxidative stress signal. Upon treatment with oestrogen catalase is not synthesized. The pretreatment time of oestrogen required for its antioxidative effect can be seen within 5 min indicating non-genomic mode of action of oestrogen.


Asunto(s)
Catarata/tratamiento farmacológico , Células Epiteliales/efectos de los fármacos , Estradiol/farmacología , Estrógenos/farmacología , Cristalino/citología , Estrés Oxidativo/efectos de los fármacos , Anciano , Antioxidantes/metabolismo , Catalasa/metabolismo , Catarata/enzimología , Células Cultivadas , Células Epiteliales/enzimología , Femenino , Humanos , Peróxido de Hidrógeno , Cristalino/enzimología , Peroxidación de Lípido/efectos de los fármacos , Masculino , Persona de Mediana Edad , Oxidantes , Sustancias Protectoras/farmacología
9.
Eye (Lond) ; 23(8): 1702-6, 2009 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-19079142

RESUMEN

AIMS: To evaluate the effect of anterior capsule polishing on the development of anterior capsule opacification (ACO) in patients undergoing cataract surgery. METHODS: This prospective randomized observational double-masked clinical trial comprised 120 eyes of 60 consecutive patients with bilateral age-related cataract who underwent phacoemulsification. The patients were randomly assigned to one of the two groups: One eye received a 360 degree anterior capsule polishing (group 1 (cases)) and the fellow eye was without anterior capsule polishing (group 2 (controls)) The primary observation was to observe the development of ACO between the 2 groups, whereas the secondary observation was to measure uveal inflammation. ACO was evaluated at 1 week, 1 month, and 6 months. RESULTS: At the 1-week follow-up, there was no significant difference in the development of ACO between the two groups. At 1 month, 54 (90%) eyes developed ACO in controls and 26 (43.3%) eyes in cases (P<0.001). However, at 6 months, there was no significant difference in the development of ACO between controls and cases (P=0.500). The odds of having cells and flare were significantly more in cases compared with controls at first postoperative day (cells: OR, 39.27; 95% CI, 13.49-114.26 and flare: OR, 48.0; 95% CI, 15.57-147.97). CONCLUSIONS: ACO was significantly lower at 1 month in cases compared with controls. However, the difference in ACO between the two groups was insignificant at 6 months. A significant difference in anterior segment inflammation was documented in cases on the first postoperative day. There was no detectable benefit of performing scraping on the anterior capsule to avoid opacification after phacoemulsification.E


Asunto(s)
Opacificación Capsular/terapia , Cápsula del Cristalino/patología , Facoemulsificación/efectos adversos , Uveítis Anterior/patología , Opacificación Capsular/etiología , Opacificación Capsular/patología , Método Doble Ciego , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Factores de Tiempo , Uveítis Anterior/etiología
10.
Indian J Ophthalmol ; 56(2): 103-8, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18292619

RESUMEN

BACKGROUND: Corticocapsular adhesions (CCA) are frequently seen between lens capsule and adjacent cortical layer. During cataract surgery, in the presence of CCA, excessive efforts to rotate the nucleus can result in zonular damage. To reduce morbidity, identification of associations with CCA can be helpful in appropriately modifying the surgical procedure. AIM: To investigate probable associations with CCA in patients undergoing cataract surgery. SETTING AND DESIGN: Iladevi Cataract and IOL research center. Case-control study. MATERIALS AND METHODS: A single eye of 600 patients, 200 patients with CCA (cases) and 400 patients without CCA (controls) were considered. A CCA diagnosis was based on: (i) preoperative presence of CCA on slit-lamp examination with visualization of furry surface of cortex during surgery; (ii) preoperative absence of CCA on slit-lamp examination but intraoperative visualization of furry surface of cortex. Variables such as age, gender, type of cataract, grade of cataract, high myopia, diabetes mellitus and hypertension were studied. STATISTICAL ANALYSIS: Multivariate logistic regression was done. Results were presented as odds ratio (OR) with 95% CI. RESULTS: Mean age was 64.71 +/- 9.10 years in cases and 59.27 +/- 8.79 years in controls. Presence of CCA increased with age from 22% (n = 59) in 45 to 49 years to 70% (n = 110) in 70 to 79 years. An increase in age was associated with CCA by 3.3% (OR = 3.3%, P = 0.028). The odds of CCA for females were 83% higher ( P = 0.027). Presence of anterior cortical cataract increased odds of CCA by 9.5 times ( P = 0.001), while posterior cortical cataract increased odds by 3.3 times ( P = 0.001). CONCLUSION: Corticocapsular adhesions were strongly associated with cortical cataracts, increased age and female gender.


Asunto(s)
Catarata/diagnóstico , Cápsula del Cristalino/patología , Corteza del Cristalino/patología , Facoemulsificación , Adherencias Tisulares , Adulto , Factores de Edad , Anciano , Anciano de 80 o más Años , Estudios de Casos y Controles , Femenino , Humanos , Implantación de Lentes Intraoculares , Masculino , Persona de Mediana Edad , Factores de Riesgo , Factores Sexuales
11.
Eye (Lond) ; 22(7): 889-94, 2008 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-17318205

RESUMEN

PURPOSE: To compare the performance of single-piece acrylic vspoly (methylmethacrylate) intraocular lenses (IOL) on the development of posterior capsule opacification (PCO) after conventional extra capsular cataract extraction (ECCE). MATERIALS AND METHODS: One hundred and eighty-two eyes of 91 patients with bilateral senile cataract undergoing ECCE were prospectively randomized to receive a single-piece Alcon AcrySof SA60AT IOL or a single-piece EPOCH polymethylmethacrylate IOL in the first eye to have surgery. At 1, 6 and 12 months post-operative follow-up, digital retro illumination images of the posterior capsule were taken for PCO assessment semi-objectively using PCO (POCO automated analysis software) system. Relationship of anterior capsule contact (total off and partial cover) on optic for PCO was analyzed. RESULTS: The AcrySof IOL was associated with less PCO than EPOCH lens at 6 months (10.01+/-8.75% vs 32.26+/-27.44%; P<0.001) and 1-year (11.65+/-10.55% vs 38.38+/-29.62%; P<0.001) follow-up. The EPOCH IOL showed a remarkably significant difference on development of PCO with anterior capsule overlap on IOL optic (total off and part on) 1 year (P<0.039), whereas no such difference was observed with the AcrySof IOL (P=0.197). CONCLUSION: The AcrySof IOL led to significantly less PCO than the EPOCH IOL post-operatively after extracapsular cataract extraction.


Asunto(s)
Catarata/etiología , Cápsula del Cristalino/patología , Lentes Intraoculares , Polimetil Metacrilato , Complicaciones Posoperatorias , Acrilatos , Anciano , Extracción de Catarata , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Diseño de Prótesis , Falla de Prótesis , Recurrencia , Salud Rural
12.
J AAPOS ; 10(4): 351-6, 2006 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-16935237

RESUMEN

PURPOSE: We sought to document the completion rate of primary posterior continuous curvilinear capsulorhexis during congenital cataract surgery and determine the incidence of disruption of vitreous face during this procedure. METHODS: One hundred six consecutive eyes of patients undergoing posterior continuous curvilinear capsulorhexis (PCCC) during congenital cataract surgery were evaluated prospectively for completion of PCCC and disruption of vitreous face. PCCC was performed under high-viscosity sodium hyaluronate (Healon GV 1.4%) initiated with 26 g of cystotome and later completed with Kraff-Uttrata forceps by frequent grasping and regrasping of the flap. Completion of PCCC and disruption of vitreous face during the procedure was noted. Even in cases of disrupted vitreous face, PCCC was performed and completed with forceps and, later, disruption of vitreous face was managed with 2-port automated limbal anterior vitrectomy. The size of PCCC was measured. An Alcon AcrySof SA30AL was implanted in-the-bag if the PCCC was 4 mm or smaller and in the sulcus when the PCCC was larger than 4 mm. RESULTS: The mean age of the 106 pediatric patients was 17 +/- 26 months (median, 6 months; range, 1 month to 8 years). PCCC was completed in all the eyes. Disruption of vitreous face during PCCC was noted in 5 of 106 (4.7%) eyes. The mean size of PCCC was 3.6 +/- 0.7 mm. A total of 98 (92.5%) had in-the-bag, and 8 (7.5%) eyes had sulcus implantation of IOL. CONCLUSION: PCCC was completed in all eyes with minimal disruption of vitreous face in a well-controlled manner under high-viscosity viscoelastics.


Asunto(s)
Capsulorrexis/efectos adversos , Capsulorrexis/estadística & datos numéricos , Catarata/congénito , Oftalmopatías/etiología , Complicaciones Intraoperatorias , Cuerpo Vítreo/patología , Niño , Preescolar , Humanos , Ácido Hialurónico/uso terapéutico , Lactante , Implantación de Lentes Intraoculares , Estudios Prospectivos
13.
Indian J Ophthalmol ; 54(3): 169-72, 2006 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16921213

RESUMEN

AIM: To determine whether the plaque on the posterior capsule can be predicted preoperatively, in patients with posterior subcapsular cataract (PSC), undergoing cataract surgery. MATERIALS AND METHODS: A prospective study of 140 consecutive eyes with PSC, who underwent cataract surgery, was conducted. The prediction of preoperative presence or absence of plaque within the PSC was noted on slit lamp examination, in dilated pupils. A single observer made the observations under oblique illumination, where the slit lamp was placed at an angle of 30 degrees to 45 degrees. Evaluation of the plaque through slit lamp examination was standardized in terms of illumination and magnification. The observations were recorded using a video camera (Image archiving system, Carl Zeiss, Jena Germany) attached to a slit lamp (Carl Zeiss, SL 120 Jena, Germany), keeping the illumination at 100%. The prediction of plaque was noted in terms of its presence or absence on the posterior capsule. All the patients received counseling regarding the presence of plaque. Capsule polishing of the posterior capsule in Cap Vac mode, was done in all cases. The posterior capsule was examined for presence or absence of plaque, either on the first postoperative day, or within a week, with maximal mydriasis. The observer's results were tabulated and later analyzed to judge the incidence of predictability of plaque in PSC. RESULTS: The mean age of the patients was 45+/-6.2 years (range 32-61 years); 104 (74.3%) were males. One hundred and eight (77.1%) patients were under 50 years. The presence or absence of plaque was predicted correctly in 124 (88.6%) eyes. The prediction of plaque was incorrect in 16 (11.4%) eyes. CONCLUSION: The prediction of presence or absence of plaque was accurate in 88.6% cases. We believe that counseling patients with posterior capsule plaque before the surgery is the key to avoiding unpleasant surprises.


Asunto(s)
Catarata/patología , Cápsula del Cristalino/patología , Facoemulsificación , Cuidados Preoperatorios/métodos , Adulto , Femenino , Estudios de Seguimiento , Humanos , Cápsula del Cristalino/cirugía , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Prospectivos
14.
Indian J Ophthalmol ; 54(1): 39-41, 2006 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-16531669

RESUMEN

Use of Cionni ring helped in the successful intraocular lens (IOL) implantation in a 30-year-old patient with bilateral congenital subluxated cataracts. The IOL was stable, well-centered without any iridodonesis or pseudophakodonesis.


Asunto(s)
Catarata/congénito , Cápsula del Cristalino/cirugía , Subluxación del Cristalino/complicaciones , Facoemulsificación/métodos , Implantación de Prótesis/métodos , Adulto , Catarata/complicaciones , Estudios de Seguimiento , Humanos , Implantación de Lentes Intraoculares , Subluxación del Cristalino/cirugía , Masculino , Diseño de Prótesis , Agudeza Visual
15.
J Cataract Refract Surg ; 30(2): 403-8, 2004 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-15030831

RESUMEN

PURPOSE: To establish and evaluate the diagnostic signs, intraoperative performance, and postoperative outcomes in children with congenital cataract with a preexisting posterior capsule defect (PCD). SETTING: Iladevi Cataract & IOL Research Centre, Ahmedabad, India. METHODS: This study evaluated 400 consecutive eyes that had congenital cataract surgery, of which 27 (20 children) had a confirmed preexisting PCD. Seven children had bilateral defects. The preoperative diagnostic signs of PCD under maximum pupil dilation included well-demarcated, thick defect margins; white dots on the posterior capsule; and white dots in the anterior vitreous that moved with the degenerated vitreous like a fish tail (fish-tail sign). Hydrodissection was not attempted. Bimanual irrigation/aspiration and 2-port anterior vitrectomy were performed. The mean follow-up was 17.9 months +/- 16.96 (SD). RESULTS: The mean age of the 16 boys and 4 girls with a PCD was 21.98 +/- 33.33 months. Nineteen eyes (70.3%) had total white mature cataract. In 7 eyes (25.92%), the preexisting PCD was converted into a posterior capsulorhexis. Twenty eyes (74.07%) had an AcrySof MA30BA intraocular lens (IOL) implanted in the bag and 4 eyes (14.81%), in the sulcus. Three eyes (11.11%) were left aphakic. The visual axis remained clear in all eyes, and the IOL was well centered in 24 eyes (88.88%). CONCLUSION: Establishing the diagnostic signs of PCD with the eye fully dilated and carefully planning the surgery produced satisfactory technical and visual outcomes.


Asunto(s)
Catarata/congénito , Catarata/diagnóstico , Anomalías del Ojo/diagnóstico , Cápsula del Cristalino/anomalías , Extracción de Catarata/métodos , Niño , Preescolar , Anomalías del Ojo/cirugía , Femenino , Estudios de Seguimiento , Humanos , Lactante , Cápsula del Cristalino/patología , Implantación de Lentes Intraoculares , Lentes Intraoculares , Masculino , Estudios Prospectivos , Agudeza Visual , Vitrectomía
16.
Indian J Ophthalmol ; 51(2): 147-54, 2003 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12831145

RESUMEN

PURPOSE: To evaluate the outcome of phacoemulsification in eyes with subluxated cataract. MATERIALS AND METHODS: This retrospective study comprised 22 eyes of 20 consecutive patients with subluxated cataracts of varying aetiology operated between March 1998 and March 2001. Detailed preoperative assessment included visual acuity (VA), slitlamp examination, presence of vitreous in anterior chamber extent of subluxation, intraocular pressure (IOP) and detailed fundus examination. Phacoemulsification was done to retain the natural bag support and all patients had acrylic foldable Acrysof IOL implantation either in-the-bag or by scleral fixation. Postoperative observations included best-corrected visual acuity (BCVA), IOP, pupillary reaction and the IOL position. RESULTS: The aetiology of the subluxation was traumatic in 11 patients and non-traumatic in 9 patients. Fifteen were males and 5 were females. Mean follow-up was 11.7 +/- 9.71 months (range 4-39). The average age was 39.15 +/- 16.33 (range 5-74). A 2-port anterior chamber vitrectomy was performed in 6 eyes (27.2%). Capsule tension ring (CTR) was implanted in 15 eyes (68.18%). Twelve eyes (54.5%) had in-the-bag implants, while 5 (22.72%) had scleral fixation. The remaining 5 eyes (22.72%) had one haptic in-the-bag and another sutured to sclera. No major intraoperative complications were noted. Twelve eyes (54.5%) had clinically and geometrically well centered IOLs while 9 eyes (40.9%) had geometrically decentered IOLs. One patient was lost to follow-up. Fifteen eyes (55.55%) had postoperative BCVA of 6/12 - 6/6 while 2 eyes (7.40%) had BCVA of 6/18. The remaining 4 eyes (14.81%) had less than 6/24 BCVA due to pre-existing posterior segment pathology. Postoperative complications included rise in IOP in 1 eye (4.54%), pupillary capture of the IOL optic in 2 eyes (9.09%); the same 2 eyes (9.09%) required redialing of IOL. One eye (4.54%) had to undergo refixation (one haptic was fixed to sclera) year after cataract surgery. Postoperative retinal detachment was noticed in one patient after a month of phacoemulsification. CONCLUSION: In subluxated cataracts it is essential to have appropriate parameters depending on the grade of cataract. This contributes to a safe and predictable outcome in subluxated cataract surgery.


Asunto(s)
Extracción de Catarata/métodos , Catarata/complicaciones , Implantación de Lentes Intraoculares , Subluxación del Cristalino/complicaciones , Facoemulsificación , Adolescente , Adulto , Anciano , Niño , Preescolar , Femenino , Humanos , Implantación de Lentes Intraoculares/efectos adversos , Masculino , Persona de Mediana Edad , Facoemulsificación/efectos adversos , Estudios Retrospectivos , Resultado del Tratamiento
17.
J Cataract Refract Surg ; 29(3): 609-13, 2003 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-12663033

RESUMEN

A 13-year-old boy with Marfan's syndrome presented with bilateral, acute, complete anterior dislocation of the crystalline lens. The lens substance was aspirated intracapsularly after 2 linear capsulotomies were created. The empty capsular bag was removed from the eye as a vitrectome was used to severe the adhesions between the capsule and vitreous face through 1 paracentesis and a forceps was used to pull the capsule through the other paracentesis. Aphakia was corrected by glasses and contact lenses. Two years after surgery, the best corrected visual acuity was 20/32 in both eyes.


Asunto(s)
Desplazamiento del Cristalino/etiología , Desplazamiento del Cristalino/cirugía , Síndrome de Marfan/complicaciones , Adolescente , Afaquia Poscatarata/etiología , Afaquia Poscatarata/terapia , Lentes de Contacto , Anteojos , Humanos , Masculino , Vitrectomía
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