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Indian J Ophthalmol ; 2022 Apr; 70(4): 1208-1213
Article | IMSEAR | ID: sea-224235

ABSTRACT

Purpose: To study corneal endothelial changes post phacoemulsification in diabetic and non?diabetic patients. Methods: A comparative, prospective, observational study was conducted on 100 diabetic and 100 non?diabetics who underwent phacoemulsification. All patients were operated by the same surgeon by using the phaco chop technique to exclude any surgeon?related bias. Endothelial cell count, CCT, and coefficient of variance (CV) were measured with a specular microscope along with BCVA preoperatively and at 1 week, 4 weeks, and 3 months postoperatively. For statistical analysis, data were analyzed by using SPSS (version 27.0; SPSS Inc., Chicago, IL, USA). Data were summarized as mean and standard deviation for numerical variables and count and percentages for categorical variables. Chi square test, independent sample T test, and paired T test were used to compare the data. P ? 0.05 was considered statistically significant. Results: Postoperatively at 1 week, 4?week, and 3 months follow?up intervals, the mean endothelial cell count and coefficient of variance were significantly higher, and the mean percentage of hexagonal cells was significantly lower in non diabetic as compared to the diabetic group. A significant difference in mean central corneal thickness of the two groups was observed at 1?week and 4?weeks postoperative intervals; at both these intervals, the mean value was significantly higher in non diabetic as compared to the non?diabetic group. However, at 3?months post?operative interval, the difference between the two groups was not significant statistically. Mean BCVA values were significantly higher in diabetic as compared to the diabetic group at all three follow?up intervals. Conclusion: The findings of the present study show that endothelial cell characteristics are adversely affected in diabetic eyes as compared to non?diabetic patients undergoing phacoemulsification; this might also have an effect on the visual outcomes.

2.
Indian J Ophthalmol ; 2022 Feb; 70(2): 458-464
Article | IMSEAR | ID: sea-224122

ABSTRACT

Purpose: To evaluate peripapillary?RNFL thickness in myopia by Cirrus OCT among north Indian population by spherical equivalent (SE), age, gender, and axial length (AL). Methods: This was a cross? sectional study held during 2019–2020. Patients aged 18–60 years underwent ophthalmic examination including retinoscopy, AL, and OCT RNFL thickness. Persons with previous ocular surgery or ocular ailment other than refractive error were excluded. The peripapillary?RNFL thickness was noted and compared by demographic determinants. Results: We examined 300 eyes of 300 persons (mean age: 30.75 ± 8.57 years; 144 males/156 females). Among them, 224 were myopes and 76 were emmetropes (EM). The mean SE was ? 3.3 ± 0.4D (range: ?11.0D to + 0.37D). The mean AL was 24.61 ± 1.92 mm (22.1–29.5). Overall temporal, nasal, superior, inferior, and mean peripapillary?RNFL thickness was 66.31 ± 7.58, 78.57 ± 16.00, 120.63 ± 11.69, 116.60 ± 15.80, and 95.50 ± 10.84 ?m, respectively. Temporal, nasal, superior, inferior, and mean peripapillary?RNFL thickness was 73.97 ± 8.36, 94.84 ± 7.63, 127.96 ± 8.96, 136.89 ± 6.53, and 108.34 ± 6.28 ?m, respectively, in EM eyes as compared to 63.71 ± 6.18, 73.05 ± 14.24, 118.21 ± 11.53, 109.71 ± 11.50, and 91.14 ± 8.31 ?m, respectively, in myopic eyes (P < 0.001). Association of peripapillary?RNFL thickness with myopia and its different grades was P < 0.001. Association of mean peripapillary?RNFL thickness with age was P > 0.005 and gender was P = 0.168. Correlation between SE and RNFL thickness was positive and significant. Correlation between AL and RNFL thickness was negative but statistically significant. Association of AL with SE was P < 0.001. Conclusion: We provide normative peripapillary?RNFL thickness in the north Indian population in order to help in screening for myopia with comorbidity such as glaucoma based on RNFL thickness.

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