Browsing by Author "Sundararajan, D"
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Item Comparing the effect of conventional method of retinoscopic refraction with computerized automated refraction in various refractive error patients(Educational Society for Excellence, 2017) Deepikadevi, SN; Sundararajan, D; K, Namitha Bhuvaneshwari; Krishnan, Murali.Introduction: Refractive error is the most common visual impairment seen worldwide. This is one of the main cause for which patients come to ophthalmologist. This can occur at any age of the patient. Automated refractometer has become popularised method for doing refraction because of the busy practise of ophthalmologist and due to heavy patients load in screening camps. It is an easy method to learn, to operate and also time saving procedure. Patients are also very comfortable with it because of this easy procedure done in short time. But Streak retinoscopy which is considered as a Gold standard technique for refraction, has some difficulties like time consuming, dilatation of pupil and discomfort to the patient. Aim: Comparing the effect of the conventional method of refraction with computerized automated refraction in various refractive error patients. Materials and methods: It was an observational, cross-sectional study done in a 50 refractive error patients who attend Department of Ophthalmology OPD. Results: According to the statistical analysis done to compare the refraction values of the auto refractometer and streak retinoscopy with the patient's acceptance value, results came as streak Deepikadevi SN, Sundararajan D, Namitha Bhuvaneshwari K, Murali Krishnan. Comparing the effect of conventional method of retinoscopic refraction with computerized automated refraction in various refractive error patients. IAIM, 2017; 4(10): 105-110. Page 106 retinoscopy values had no significant difference with the patient's acceptance value. This study also shows males were more affected by refractive errors than females and the mean age of affection in myopia was 19- 20 years and hypermetropia is 33-36 years. Conclusion: Since reteak retinoscopy values are accepted well by the patients, it is the better method for refrection than auto refractometerItem Specular microscopic study of cornea in infectious and non-infectious uveitis in rural population of south India(Educational Society for Excellence, 2017) Sundararajan, D; Kumar, N. Sathish; Veluchamy, S.Background: Intermediate uveitis is a form of uveitis localized to the vitreous and peripheral retina. Primary sites of inflammation include the vitreous of which other such entities as pars planitis, posterior cyclitis, and hyalitis are encompassed. Intermediate uveitis may either be an isolated eye disease. Involvement of the corneal endothelium during uveitis has not been extensively studied even though it might participate in or constitute a target of ocular inflammation. Formation of keratic precipitates (KP) is a characteristic finding in several forms of uveitis. Aim: The aim of this prospective study was to examine the vicinity of keratic precipitates in infectious and non-infectious uveitis by specular microscopy. Materials and methods: Patients with infectious and non-infectious uveitis in any activity level and presence of keratic precipitates were enrolled. A noncontact specular microscope was used to capture endothelial images in the vicinity of keratic precipitates. The automated morphometric analysis was done for cell size, cell density and cells coefficient of variation. Statistical comparisons were made between the infectious and non-infectious groups. Results: Totally 50 patients were enrolled in this study, 30 (64%) eyes presented infectious uveitis, 20 (36%) non-infectious uveitis and 1 (3%) eye were excluded due to the impossibility to obtain a specular image. The mean cell density estimated was 2,628 ± 204 cells/mm2 in the infectious group and 2,622 ± 357 cells/mm2 in the non-infectious group. The mean cellular area in the infectious and non-infectious group was respectively 385 ± 31 µm2 and 390 ± 60 µm2 . The coefficient of variation (%) of the cellular area in the vicinity of keratic precipitates was 26.36 ±3.44 in infectious and 27.69 ± D. Sundararajan, N. Sathish Kumar, S. Veluchamy. Specular microscopic study of cornea in infectious and noninfectious uveitis in rural population of south India. IAIM, 2017; 4(10): 111-116. Page 112 4.61 in the non-infectious group. The differences between the groups were not statistically significant (P<0.005 / Mann-Whitney test) for the three morphologic variables. Conclusion: The clinical applicability of specular microscopy in patients with uveitis can be a useful tool to evaluate the corneal endothelium in the presence of keratic precipitates, however, the handicap of the specular image formation might not be discarded in some cases. The differences found were not clinically meaningful between the infectious and non-infectious groups, however the uveitis in various degrees of intraocular inflammation