Dr. Sumitha Muthu

Dr. JYOTI MATALIA, Dr. HIMANSHU MATALIA, Dr. ROHIT SHETTY

Abstract

Refractive errors (RE) are always looked at from perspective of axial length only. The study focuses on uncovering tomographical & biomechanical parameters that best associates itself with RE in children. The study was done on children aged 5-18 years during 2017-2019. 1500 eyes underwent detailed clinical examination & dilated refraction. All eyes were examined using Pentacam & Corvis to derive corneal stiffness & extra-corneal viscoelasticity by means of Random Forest artificial (RFA) intelligence algorithm. RFA model prediction had mean absolute error of 1.44 D & regression correlation coefficient of 0.61. Parameters with most association were flat axis front (0.23) & back (0.21), high convex deflection length (0.21), applanation 1 deformation length (0.2), age (0.18), ratio of corneal stiffness & extra-corneal stiffness (0.18), etc The study found strong association of tomographical & biomechanical parameters with RE which could be leveraged in predicting RE progression in children

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