Publications

Aim: To evaluate the change in keratometric reading and cylindrical power in the immediate post-operative period and at the end of one month in the two groups evaluated. [ group 1 – subconjunctival excision of pterygium with reposition of conjunctiva using autologous blood, group 2- pterygium excision with limbal conjunctival auto graft using 10-0 ethilon sutures.] Method: The study involved 22 patients in group 1 and 19 patients in group 2. All the patients in group 1 were operated by surgeon 1 and group 2 patients were operated by surgeon 2. The keratometric reading was documented pre- operatively, on the rst post- operative day and at the end of one month in all the patients. The patients were followed up for a period of 9 months. The data was analysed using Two Way Annova and repeated measures Annova test. Univariate analysis was done using student's test and paired t test. Multivariate analysis was done using repeated measures ANOVA. Result: The mean (+SD) age of the study patients was 45.09 (+9.86) years. There was female preponderance with 29 females and 12 males. The two groups were well matched with no statistically signicant difference in the age, gender, baseline cylindrical power and keratometric reading in the two principal meridia of the two groups. There was a statistically signicant reduction in the cylindrical power of the eyes across the whole follow-up period across the groups (p<0,001). nd There was also a signicant reduction from baseline to rst follow-up at the end of 1week (p=0,002), baseline to 2 follow-up at 1month (p<0.001) st nd and between 1 and 2 follow-up (p=0.004), Table 2. Change in cylinder across study period was very signicant with F value 25.8 and p value<0.001. There was statistically signicant change in the Keratometric readings of both the principal meridian, with the change in Keratometric readings greater in the horizontal meridian than the vertical meridian, (p<0.001 and p=0.03 respectively. First post-operative visit cylinder value (C2) between the groups was very signicant with t-5.7 and p value<0.001. Second post-operative visit (C3) between the groups was signicant with t 2.2 and p value 0.03. Conclusion : Patients who underwent subconjunctival dissection and excision of pterygium with conjunctival reposition using autologous blood had a stable k reading within the rst post op day as compared to patients who underwent pterygium excision with limbal autograft transplantation. At the end of one month both the groups had a similar stabilisation of the keratometric readings.