Included series were published 2006 or later (concurrent with our study population), listed in order of cohort size (RE = Reese-Ellsworth classification).
Snellen original stimuli sizes are reported in Snellen fractions (distance from which the participant perceives the letter in meters in the numerator and the distance from which a normally sighted ind
Purpose: Children may be tested with a variety of visual acuity (VA) charts during their ophthalmic care and differences between charts can complicate the interpretation of VA measurements. This stud