OBJECTIVE: To investigate the relation between contrast sensitivity and corneal irregular
astigmatism in eyes after photorefractive keratectomy (PRK). DESIGN: Prospective …

Objective: To prospectively examine the effect of excimer laser photorefractive keratectomy
(PRK) on best-corrected visual performance using psychophysical tests that were likely to be …

PURPOSE: To prospectively examine the effect of photorefractive keratectomy with a 6-mm
ablation zone on best-spectacle-corrected visual performance. METHODS: A prospective …

Purpose: To determine the relationship between postoperative refractive error and
uncorrected visual acuity (UCVA) after photorefractive keratectomy (PRK) and compare the …

PURPOSE: To assess low-contrast visual acuity (LCVA) after photorefractive keratectomy in
relation to ocular higher-order wavefront aberration and corneal subepithelial haze …

Background: To evaluate near vision contrast sensitivity as a measure of visual performance
after photorefractive keratectomy (PRK). Setting: LSU Eye Center, New Orleans, Louisiana …

ABSTRACT BACKGROUND: A change of corneal topography and haze after excimer laser
photorefractive keratectomy (PRK) can reduce contrast sensitivity and cause glare. Both …

Purpose: To assess the influence of corneal surface microirregularities on objective and
subjective visual performance after photorefractive keratectomy (PRK). Setting: Multicenter …

Purpose To evaluate the relation between induced changes in ocular higher order
aberrations and changes in the contrast sensitivity function in patients undergoing excimer …

Purpose: To compare the outcome of low-contrast visual acuity and glare sensitivity after
photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). Setting …