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Pradeep Venkatesh

Publications and source records attributed to Pradeep Venkatesh.

28 records · Page 2Linked to original sources
PubMed2004

Quantification of the retinal nerve fibre layer thickness in normal Indian eyes with optical coherence tomography.

PURPOSE: To quantitatively assess the normative values for peripapillary retinal nerve fibre layer (RNFL) thickness with Optical Coherence Tomography (OCT 3) in Indian subjects. METHODS: The peripapillary retinal nerve fibre layer of 146 normal subjects was imaged on OCT 3 in this cross-sectional study. Thickness of the RNFL around the disc was determined with three 3.4 mm diameter circle OCT scan. The RNFL thickness was measured in four quadrants; superior, nasal, inferior and temporal. The data was analysed using SAS commercial statistical software. Influence of age and gender was evaluated on various measured parameters using unpaired t test, one-way analysis variance (ANOVA) and Pearson's correlation coefficient. RESULTS: One hundred and forty six eyes of 146 patients, 84 males and 62 females were studied. The average RNFL thickness in the sample population under study was 104.27 +/- 8.51 (95% CI 87.25-121). The RNFL was thickest in the inferior quadrant, followed by the superior quadrant, and progressively less in nasal and temporal quadrant. The difference between inferior and superior quadrants was not statistically significant. Age had a significant negative correlation with average RNFL thickness (r = -0.321, P = 0.000) and with average superior (r = -0.233, P = 0.005) and average inferior RNFL thickness (r = -0.234, P = 0.004). There was no effect of gender on various RNFL thickness parameters. CONCLUSIONS: RNFL thickness is significantly correlated with age, but not with gender. This normative database of RNFL thickness with OCT in Indian eyes is similar to previously reported values in normal Asian eyes.

Adult↗
PubMed2004

Diabetic retinopathy for general practitioners.

The most significant complication of diabetes mellitus involves the eye and which develops 85% of all diabetics eventually to retinopathy. Diabetic retinopathy is the commonest cause of blindness between 4th and 7th decades. It is essentially a microangiopathy with two distinct stages during its evolution, the preclinical and clinical stages. Diabetic maculopathy is the commonest cause of visual loss in diabetics. Progression of the diseases can be retarded by early diagnosis and using appropriate measures. Well known risk factors are diabetes age, metabolic control of hypertension, associated renal disease and pregnancy. The management plan of the secondary level is early diagnosis and laser photocoagulation or surgical intervention. Vitreoretinal surgery is certainly of benefit in patients with advanced diabetic eye disease. The PROMPT factors can be applied to decrease diabetes mellitus related blindness.

Blindness↗
PubMed2003

Insect wing conjunctival granuloma.

PURPOSE: To report a case of conjunctival granuloma formation in response to lodgment of an insect wing. METHOD: Case report and review of the literature. RESULTS Granuloma formation in the conjunctiva can occur following lodgment of an insect wing. This can cause the patient chronic redness, discharge, and discomfort. CONCLUSIONS: Small foreign bodies with relatively little mass and large surface area can evade the normal protective mechanisms for removal of a foreign body and give rise to a chronic inflammatory response.

Administration, Topical↗
PubMed2002

Rapid seroconversion to Treponema pallidum and HIV positivity in a patient with retinal vasculitis.

A patient with idiopathic retinal vasculitis was found to have rapid conversion of serological tests for Treponema pallidum and HIV. The diagnosis was confirmed by Venereal Disease Research Laboratory (VDRL) testing and dark ground illumination for T. pallidum, and enzyme-linked immunosorbent assay (ELISA) and Western blot assay tests for HIV. Following treatment with intravenous penicillin, the fundus lesions resolved and visual acuity recovered from inaccurate light projection to 6/24 in the right eye and from counting fingers close to face to 2/60 in the left eye. Serological tests for T. pallidum in patients with concurrent HIV infection may be unpredictable. Hence, it is important to repeat these tests even in the early treatment phase of patients with retinal vasculitis who have shown initial seronegativity. This enables earlier diagnosis and initiation of specific treatment.

Adult↗
PubMed2002

A prospective, long-term, randomized study of the efficacy and safety of the drug combination pilocarpine 1% with clonidine 0.06% or clonidine 0.125% versus timolol 0.25%.

The purpose of this prospective, randomized study was to evaluate the efficacy and safety of the drug combinations--pilocarpine 1% with clonidine 0.06% and pilocarpine 1% with clonidine 0.125%, in comparison with timolol 0.25%. 54 patients with bilateral primary open angle glaucoma and comparable IOP were assigned to three study groups: group 1 received the drug combination of pilocarpine 1% and clonidine 0.06%, group 2 received the drug combination pilocarpine 1% and clonidine 0.125% and group 3 only timolol 0.25% drops. In all groups twice-daily medication was used. Mean diurnal IOP as well as ocular and systemic side effects were evaluated at week 1, 2, 4, 8 and 12. Changes in blood pressure, pulse rate, pupil size and patient symptoms were also recorded. At three months all patients had completed the study. Diurnal IOP was significantly reduced from baseline in all groups and consistent IOP reduction was achieved in all three groups at all follow up periods. Mean IOP reduction was 18.40%, 28.45% and 24.64% in group 1, group 2 and group 3, respectively. Flattening of the diurnal fluctuation in IOP was also seen in all patients. On comparing the IOP reduction achieved amongst the three groups, there was a statistically significant difference between group 1 and group 2 as well as between group I and group 3 while the difference between group 2 and group 3 was statistically insignificant. The drug combinations of pilocarpine 1% and clonidine did not produce any statistically significant effect on pupil diameter. No statistically significant difference was noted with respect to patient symptoms, blood pressure and pulse rate. In conclusion, the drug combination of pilocarpine 1% and clonidine 0.125% produces IOP reduction comparable to that achieved with timolol 0.25% drops in twice daily dosage and does not result in any significant ocular and systemic adverse effects.

Adrenergic alpha-Agonists↗
PubMedDate not supplied

Large retinal defect associated with myelinated nerve fibers.

We report the unusual association of a large retinal defect with extensive myelinated nerve fibers. The defect was situated in the superior portion of the myelination and choroidal vasculature was visible through it. The defect has remained unchanged during 6 years of follow-up and has not led to any retinal detachment.

Child↗