The effect of bifocal add on accommodative lag in myopic children with high accommodative lag.

ABSTRACT:

Purpose

To determine the effect of a bifocal add and manifest correction on accommodative lag in myopic children with high accommodative lag, who have been reported to have the greatest reduction in myopia progression with progressive addition lenses (PALs).

Methods

Monocular accommodative lag to a 4-D Badal stimulus was measured on two occasions 6 months apart in 83 children (mean ± SD age, 9.9 ± 1.3 years) with high lag randomized to wearing single-vision lenses (SVLs) or PALs. Accommodative lag was measured with the following corrections: habitual, manifest, manifest with +2.00-D add, and habitual with +2.00-D add (6-month visit only).

Results

At baseline, accommodative lag was higher (1.72 ± 0.37 D; mean ± SD) when measured with manifest correction than with habit

SUBMITTER: Berntsen DA 

PROVIDER: S-EPMC3055747 | biostudies-literature | 2010 Dec

REPOSITORIES: biostudies-literature