Analyzing the Changes in Eye Axis Length and Corneal Curvature in Central China

Inclusion Criteria: \- Eligible patients were those aged ≥7 years and who underwent intraocular lens (IOL) Master (version 5.5) biometry for routine examination of cataract or refractive examination (ametropia and presbyopia) between April 2012 and November October 2023. Only patients who would cooperate with examinations to ensure stable and repeatable data (AL was measured 5 times or more, CC was measured 3 times or more, and the coefficient of variation of the measured results were≤15%a coefficient of variation ≤15% was considered low variation) were selected. Exclusion Criteria: \- Severe systemic disease, corneal diseases, severe dry eyes, serious fundus disease, noticeable lesions of the refractive stroma, inability to cooperate, or poor measurement quality (coefficient of variation\> 15%) were the exclusion criteria.