A randomized trial using progressive addition lenses to evaluate theories of myopia progression in children with a high lag of accommodation.

ABSTRACT:

Purpose

To compare the effect of wearing, then ceasing to wear, progressive addition lenses (PALs) versus single vision lenses (SVLs) on myopia progression in children with high accommodative lag to evaluate accommodative lag and mechanical tension as theories of myopia progression.

Methods

Eighty-five children (age range, 6-11 years) with spherical equivalent (SE) cycloplegic autorefraction between -0.75 D and -4.50 D were randomly assigned to wear SVLs or PALs for 1 year; all children wore SVLs a second year. Children had high accommodative lag and also had near esophoria if their myopia was greater than -2.25 D SE. The primary outcome after each year was the previous year's change in SE.

Results

When the children were randomly assigned to SVLs or PALs, the adjusted

SUBMITTER: Berntsen DA 

PROVIDER: S-EPMC3317412 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature