Purpose To investigate and compare the degradation of visual acuity (VA) in myopic
presbyopes due to lens-induced astigmatism at near and at far distance. Patients and …

We read with interest the recently published article titled “Effects of Lens-Induced
Astigmatism at Near and Far Distances” by Tavazzi et al. 1 We would like to congratulate on …

Purpose. The relationship between astigmatic refractive errors and their associated visual
acuity has been studied in recent years in the context of refractive power space. The …

Purpose Many studies have assessed the visual impact of astigmatism by inducing it using
loose trial lenses at set axes. There are conflicting opinions and some confusion about the …

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 …

Purpose To investigate the change in visual acuity (VA) produced by different types of
astigmatism (on the basis of the refractive power and position of the principal meridians) on …

Purpose:: Astigmatism has a significant degrading impact on visual performance when
larger than around 0.5 D. However the effect of smaller values of astigmatism, and its …

Purpose. To determine whether the degree of myopia affects the optical quality of the retinal
image after appropriate correction, monochromatic aberrations of the human eye were …

Purpose To measure axial and off-axis refraction patterns in myopic eyes with spectacle
lenses correction and lens free emmetropes in young healthy subjects at different target …

The relationship between spherical and astigmatic refractive errors and their associated
visual acuity is investigated in this work by means of two different approaches. In the first …