Residual astigmatism in wearers of contact lenses.
D001251:Astigmatism / Q000534:rehabilitation*; D003261:Contact Lenses; D005069:Evaluation Studies as Topic; D005139:Eyeglasses; D006801:Humans; D055095:Optics and Photonics; D013997:Time Factors; D014792:Visual Acuity