Axial Length Elongation in Japanese Youth With Myopia

Objectives: To investigate the correlation between the annual axial length (AL) elongation and associated factors in Japanese youth with myopia. Methods: This retrospective study enrolled patients aged 7 to 21 years with myopia. Axial length was measured using ocular biometry. Refractive errors and curvature radius (CR) were measured using an open-field Binocular Auto Ref/Keratometer without cycloplegia. Subjects were divided into five groups using 3-year age intervals, and the relationship between annual AL elongation and age, spherical equivalent (SE), corneal CR, and sex was evaluated. Results: Four hundred and eighty-two patients (184 male and 298 female subjects) with a mean age of 15.55±4.09 years were included. The annual AL elongation was largest in the youngest group (0.47±0.19) and decreased with age to 0.03±0.04 in the oldest group. The annual change in AL was associated with age and SE (P0.05). Axial length elongation stratified by age was significantly correlated with SE in the 15 to 18-year-old (R2=0.20, P
Source: Eye and Contact Lens: Science and Clinical Practice - Category: Opthalmology Tags: Article Source Type: research