Correlation between High Myopia and Primary Open Angle Glaucoma in a Population of Greater Noida, Uttar Pradesh: a Prospective Study
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Primary open angle glaucoma is one of the leading causes of irreversible but preventable blindness in the population above the age of 40 years. This study was conducted to find out correlation between high myopia and primary open glaucoma with a view to ascertain whether high myopic (>-9 D) patients above the age of 40 years were at a higher risk of developing primary open angle glaucoma (POAG).
The present study was carried out on 84 eyes of 53 high myopic patients. It was found that there was a definite correlation between high myopia and primary open angle glaucoma patients. The incidence of primary open angle glaucoma was 19.05 %, whereas in glaucoma suspect cases, it was 13.09 %. The incidence of primary open angle glaucoma was clearly associated with refractive state and increased gradually with the increase in severity of myopia. We also found a significant correlation between mean axial lengths&mean intraocular pressure and correlation between mean axial length&mean cup disc ratio of all myopic eyes. The gross appearance of the highly myopic eyes was oval or egg shaped, it was enlarged, but the elongation of the eyes was almost entirely confined to the posterior pole, the anterior half of the globe was usually normal.
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- Grodum K, Heijl A, Bengtsson B: Refractive error and glaucoma, Acta Ophthalmol Scandinavica 2001; 79: 560-566.
- Landers J et al: Analysis of risk factors that may be associated with progression from ocular hypertension to primary open angle glaucoma, Clin Experiment Ophthalmol 2002; 30 (4): 242-47.
- Mark HH: Myopia and glaucoma, Acta Ophthalmologica 2002; 80: 230-231.
- Mayama C et al: Myopia and advanced stage openangle glaucoma. Ophthalmology 2002; 109: 2072-2077.
- Mitchell P, Hourihan F, Sandback J, and Wang JJ: The relationship between glaucoma and myopia: The Blue Mountains eye study 1999; 16(10): 2010-2015.
- Moller HU: Excessive myopia and glaucoma, Acta Ophthalmol 1948; 26:185-193.
- Perkins Edward S, Charles D Phelps: Open angle glaucoma, ocular hypertension, low tension glaucoma and refraction, Arch Ophthalmol 1982; 100:1464-1467.
- Podos Steven M, Becker B and Morton WR: High myopia and primary open angle glaucoma, Am J Ophthalmol 1966; 62: 1038- 1043.
- Quigley Harry a, Cheryl Enger et al: Risk factor for the development of glaucomatous visual field loss in ocular hypertension. Arch Ophthalmol 1994: 644 – 649.
- Tomlinson A and Phillips CI: Ratio of optic cup to optic disc: in relation to axial length of the eyeball and refraction, Br J Ophthalmol 1969; 53:765-768.
- Wong TY, Klein R, Knudtson M, and Lee KE: Refractive errors, intraocular pressure, and glaucoma in a white population, Am Academy of Ophthalmology 2003; 110: 211-217.
- Wu SY, Nemesure B, Leske MC: Glaucoma and myopia. Ophthalmology 2000; 107:1026-1027.
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