DOI: 10.36347/sjams.2018.v06i08.049

Pages: 3189-3193

Pterygium is a common disease which can cause annoying symptoms like redness, irritation and foreign body sensation. If large in size, it can lead to astigmatism. Excision of pterygium results in reduction in astigmatism and patient feels aesthetically better. To determine the difference in mean corneal keratometry before and after pterygium excision, by using automated refraction with keratometry. Quasi -experimental study (pretest and posttest design). 60 patients is selected for study by using cochran formula* of hospital based study. (We have done the pilot test of one week data the average opd of the department was 84 per day out of these 84 patients 16 patients from pterygium. So p = 0.19 and we put these p on cochran formula and find sample of 59 patients which is round of to 60). This study was conducted on 60 patients visiting the outpatient department with primary pterygium, before and after pterygium surgery for corneal keratometry changes. Automated refraction and automated keratometry were used to calculate the cylindrical error and the corneal surface power respectively.