Dr. Gloria George, Dr.Manjunath Kamath M, Dr. Gurudutt Mulky Kamath, Dr. Susan Dsouza
Aim:To study the central corneal thickness over a cross section of a normal population in South India based on the race, age, sex and intraocular pressure.
Method:The CCT of 300 eyes of 150 normal patients of different age groups, attending the OPD were measured with anterior segment Cirrus SD OCT. Intraocular pressure was measured using Goldmann Applanation Tonometry. The CCT was then compared with the patient’s age, sex and IOP and it’s significance calculated.
Results:The mean CCT was found to be 532.62 microns(+/-21.71). The mean CCT among males was 540.3(+/-22.7), higher than females who had a mean CCT of 524.6(+/-17.3), the difference was statistically significant (p<0.05). The 16-30 age group had the highest mean CCT of 543.2 and the 61-75 age group had the lowest mean CCT of 515.6, the difference of which was significant (p<0.05) hence showing a decrease in CCT with increasing age. A significant positive correlation was also found between the normal rage of IOP and CCT.