Dr. R. Isiri, Dr. Shilpa Rao, Dr. Harshavardhan V K, Dr. Rakesh Betdur
AIM : To study correlation between central corneal curvature (CCR) and intraocular pressure (IOP) in general population
MATERIALS AND METHODS : A prospective, observational, comparative study of 50 subjects from general population was done. Patients were subjected to two methods of tonometry – Goldmann applanation tonometry (GAT) and Non contact tonometry (NCT). Three readings were taken for each method and the mean was calculated. Corneal curvature was measured by autorefractor keratometer and mean K reading was calculated.
RESULTS : IOP had a statistically significant negative correlation (r = -0.23, p<0.05) with CCR when measured by GAT, whereas when measured using NCT, correlation between IOP and CCR was not statistically significant (r= -0.10 p= 0.3).
CONLUSION : Our study concluded that IOP measurement by Non contact tonometer was less affected by central corneal curvature compared to that of Goldmann applanation tonometer in general population.