A randomized study of prevalence of primary open angle glaucoma in patients aged 40 and above attending Ophthalmology outpatient department in a tertiary hospital

Bavaanni Preetti, P (2014) A randomized study of prevalence of primary open angle glaucoma in patients aged 40 and above attending Ophthalmology outpatient department in a tertiary hospital. Masters thesis, Tirunelveli Medical College, Tirunelveli.

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Abstract

AIMS AND OBJECTIVES: To study the prevalence of primary open angle glaucoma in patients aged 40 and above attending Ophthalmology outpatient department in Tirunelveli Medical College Hospital and to evaluate their awareness and knowledge about glaucoma . MATERIALS AND METHODS: One hundred patients aged 40 years and above attending Ophthalmology outpatient department in Tirunelveli Medical College Hospital from January 2012 to September 2013 underwent complete ophthalmic examination. RESULTS: The overall prevalence of primary open angle glaucoma was 5% and the prevalence of glaucoma suspect was 1% . Diabetes and hypertension did not have any significant etiological association with primary open angle glaucoma. The mean IOP in the right eye was 14.22 + 3.37 mm Hg with applanation tonometer, 14.50 +3.38 mm Hg with non contact tonometer and 15.41+ 3.19 mm Hg with Schiotz tonometer. The mean IOP in the left eye was 13.87 +3.35 mm Hg with applanation tonometer, 14.45 +3.56 mm Hg with non contact tonometer and 15.22+ 3.18 mm Hg with Schiotz. IOP found with applanation tonometer was comparable with non contact tonometer in the right eye (p 0.133) but there was a significant difference between them in the left eye ( p 0.001).There was a significant difference between applanation tonometer and Schiotz in both eyes (p<0.001). Visual field changes had good correlation with the optic disc changes. Cup disc ratio and peripapillary atrophy had good correlation with primary open angle glaucoma. The mean cup disc ratio in the right eye was 0.31 in non glaucomatous and 0.64 in the primary open angle glaucoma patients. The mean cup disc ratio in the left eye was 0.32 in non glaucomatous patients and 0.62 in the primary open angle glaucoma patients. 60% of the primary open angle glaucoma patients were diagnosed newly. Glaucoma awareness was extremely low (8%) and knowledge was 0%. There was no significant association between literacy and glaucoma awareness. Previous eye check up and eye camps were not effective in creating awareness in the patients. CONCLUSION: The overall prevalence of primary open angle glaucoma was 5% and the prevalence of glaucoma suspect was 1%. Fundus examination to rule out glaucoma is mandatory in all patients above 40 years of age. Glaucoma awareness (8%) and knowledge (0%) was extremely low considering the magnitude of blindness due to glaucoma. Steps to promote awareness among the public and health care personnel must be initiated.

Item Type: Thesis (Masters)
Uncontrolled Keywords: primary open angle glaucoma ; prevalence.
Subjects: MEDICAL > Ophthalmology
Depositing User: Devi S
Date Deposited: 23 Oct 2017 06:31
Last Modified: 27 Oct 2017 08:08
URI: http://repository-tnmgrmu.ac.in/id/eprint/3840

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