Effect of methods of myopia correction on visual acuity, contrast sensitivity, and depth of focus.

Purpose: To psychophysically measure spherical and irregular aberrations in patients with various types of myopia correction.

Setting: Laboratory of Experimental Ophthalmology, University of Groningen, Groningen, The Netherlands.

Methods: Three groups of patients with low myopia correction (spectacles, soft contact lens, and Intacs) and 4 groups with high myopia correction (spectacles, rigid contact lens, Artisan claw lens, and laser in situ keratomileusis [LASIK]) had through-focus contrast sensitivity measurements to establish the myopic shift and depth of focus.