Dr.PRIYA GOYAL

Dr. SHAILJA TIBREWAL, DR. SUMA GANESH, Dr.SOVEETA SOURAVEE RATH

Abstract

Purpose:To study Prediction Error(PE)in IOL power calculation in pediatric traumatic cataract and possible factors affecting it. Method:Retrospective data (Feb 2019-Mar 2022). Absolute PE was calculated by subtracting expected refractive error(RE) from actual RE at 6 weeks post-surgery. Simulated PE(sPE) was calculated in eyes with corneal scar using keratometry(K) of fellow eye and standard K(44D) and compared with actual PE. Results:50 children with mean age of 9.5yrs (2-16) were included. Mean PE was1.6D±1.8(0-9D). PE was not affected by the method of biometry, type and duration of injury, type of cataract surgery, type and position of IOL. PE was affected by axial length(AL) being <1.5D in AL of 22.64, 1.5-2D in AL of 22.14, and >2D in AL of 22.09 (p-0.039). Corneal scar was present in 34 children. Using standard K resulted in greater sPE compared to fellow eye K. Conclusion:Mean PE was 1.6D and was affected by AL. In patients with corneal scar using fellow eye K yielded lesser sPE

Full Text