Correlation between High Myopia and Primary Open Angle Glaucoma in a Population of Greater Noida, Uttar Pradesh: a Prospective Study

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.