A Study of the Effect and Outcome of Lasers in Various Retinal Disorders in a Tertiary Care Centre

Alice Ruth Mary, S (2019) A Study of the Effect and Outcome of Lasers in Various Retinal Disorders in a Tertiary Care Centre. Masters thesis, Madras Medical College, Chennai.


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AIM OF THE STUDY: To acquire knowledge about the visual prognosis and effects on the disease following doubled frequency Nd YAG laser. OBJECTIVES: To analyse the visual outcome and disease status following doubled frequency Nd YAG laser. STUDY CENTRE: Vitreretinalservices, RegionalInstituite of Ophthalmology, Government Ophthalmic hospital, Madras Medical College, Chennai. DURATION OF STUDY: One year (November 2017 to October 2018). STUDY DESIGN: Prospective study. SAMPLE SIZE: 150 cases . INCLUSION CRITERIA: All age groups, Patients with Diabetic retinopathy, Vascular occlusion, Macular Edema, High myopia, Retinopathy of prematurity, Central serous retinopathy. EXCLUSION CRITERIA: Patients in whom other concurrent treatment like Anti VEGF, PPV given. METHODOLOGY: 1. On first examination detailed present and past history will be recorded. 2. Visual acuity and intraocular pressure testing followed by anterior segment examination. 3. Detailed fundus examination,Fundus Fluorescein Angiography and OCT. 4. Patients will be treated with frequency doubled Nd YAG laser. FOLLOW UP: Immediate follow up: 1 week post laser. Late follow up: 4 weeks post laser. RESULTS AND ANALYSIS: In our study, 170 eyes of 148 patients were included. PRP, GRID, FOCAL, BARRAGE laser were given. In PRP, in cases of diabetic retinopathy treatment in early stages prevent the progression to complications than treating in late stages. In vascular occlusion treating in early stages with NVE in one quadrant prevents further complication than treating an eye with florid NVE. There ia increase in macular edema following PRP. In GRID there is no significant change in CFT or BCVA following GRID laser. In FOCAL there is a significant improvement in BCVA or CFT following FOCAL laser In BARRAGE laser ther are no new breaks or detachment following laser. CONCLUSION: In PRP, FOCAL, BARRAGE laser, early treatment prevents further complications. In GRID, there is no significant improvement.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Light Amplification by Stimulated Emission of Radiation, Retinal Pigment Epithelium, Pan Retinal Photocoagulation, Central Serous ChorioRetinopathy, Choroidal Neovascular Memberane, Non Proliferative Diabetic Retinopathy, Proliferative Diabetic Retinopathy, High Risk Proliferative Diabetic Retinopathy, Clinically Significant Macular Edema, Macular Edema, Central Foveal Thickness, Vascocc-Vascular Occlusion, Best Corrected Visual Acuity, Early Treatment of Diabetic Retinopathy Study.
Subjects: MEDICAL > Ophthalmology
Depositing User: Subramani R
Date Deposited: 01 Sep 2019 05:13
Last Modified: 01 Sep 2019 05:13
URI: http://repository-tnmgrmu.ac.in/id/eprint/11353

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