Purpose To provide a comprehensive overview of research examining the impact of
astigmatism on clinical and functional measures of vision, the short and longer term …

The role of visual acuity and refractive errors in the academic performance of children is
controversial due to the variable quality of the research in this area and the mixed findings …

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 …

Crowding refers to the degradation of visual acuity for target optotypes with, versus without,
surrounding features. Crowding is important clinically, however the effect of target-flanker …

Purpose To investigate the impact of simulated hyperopia and sustained near work on
children's ability to perform a range of academic-related tasks. Methods Fifteen visually …

Purpose Considering that a certain proportion of high myopes have reduced visual acuity
even after full optical correction, this study aimed to investigate the association between …

Aims Clinically, picture acuity tests are thought to overestimate visual acuity (VA) compared
with letter tests, but this has not been systematically investigated in children with amblyopia …

Purpose.: The detection of amblyopia in children relies on an accurate assessment of visual
acuity. Visual deficits in anisometropic and strabismic amblyopia are different, but the …

Purpose The effect of residual astigmatism and its axis on distance and near visual acuities
(VAs) with multifocal intraocular lenses (IOLs) has not been studied extensively. This study …

Purpose: The new Waterloo Differential Acuity Test (WatDAT) is designed to allow
recognition visual acuity (VA) measurement in children before they can typically undertake …