Aniometropic Amblyopia Treated with pectacle Correction Alone: Poible Factor Predicting ucce and Time to tart Patching Original Reearch Article

Purpoe To evaluate factor predicting reolution of amblyopia and the time coure of improvement in VA in children 3 to 7 year old with aniometropic amblyopia treated with pectacle alone. Deign Propective, noncomparative intervention. Method Meaurement of corrected amblyopic logMAR viual acuity (VA) in newly diagnoed children at four-weekly interval until VA tabilized or amblyopia reolved. The time coure of improvement in VA and the factor related to amblyopia reolution were aeed. Reult ixty children with a mean age of 5.3 year and mean aniometropia of 2.95 diopter (D) were included. Amblyopia improved by 2 or more logMAR line in 56 patient (93%) and reolved in 27 patient (45%), with a mean improvement in VA of 0.38 logMAR. The improvement in VA in the amblyopic eye wa coniderable at four to 12 week then reached a plateau, after which it improved only lowly. Reolution of amblyopia wa related to better initial VA (0.2 to 0.6 logMAR) and leer amount of aniometropia (<4 D). The time to reolution ranged from four to 40 week, but no patient with reidual amblyopia howed an improvement in VA of more than 0.1 logMAR over four conecutive viit. Concluion With pectacle correction alone, 3- to 7-year-old children with previouly untreated aniometropic amblyopia achieved approximately four-line improvement and reolved nearly in half. The nearly two-month plateau period during improvement of VA hould be noticed. After four month with no improvement in VA, occluion therapy or atropine penalization may be conidered.