Treatment of myopic astigmatism with the 193 nm excimer laser utilizing aperture elements

Peter J McDonnell, W. C. Albert, C. H. Cozean, D. G. Johnson, P. J. McDonnell, P. M. Pender, J. Shimmick

Research output: Contribution to journalArticle

Abstract

In this paper, we examine the 193 nm excimer laser's efficacy and safety in treating myopic astigmatism. The VISX Twenty/Twenty excimer laser uses aperture elements to effect astigmatic photorefractive keratectomy. In 70 patients with six months follow-up, the average postoperative sphere was - 0.14 and the average postoperative cylinder was -0.54. Seventy-one percent of these patients had uncorrected visual acuity of 20/40 or better at six months. In 12 patients with one year follow-up, the average postoperative sphere was -0.05 and the average postoperative cylinder was -0.59. Eighty- three percent of these patients had uncorrected acuities of 20/40 or better; none had a clinically significant loss of best corrected acuity. This investigation demonstrates that the excimer laser can be used to treat myopic astigmatism successfully.

Original languageEnglish (US)
Pages (from-to)258-261
Number of pages4
JournalJournal of Cataract and Refractive Surgery
Volume20
Issue numberSUPPL.
StatePublished - 1994
Externally publishedYes

Fingerprint

Excimer Lasers
Astigmatism
Photorefractive Keratectomy
Therapeutics
Visual Acuity
Safety

Keywords

  • aperture elements
  • astigmatism
  • excimer laser
  • photorefractive keratectomy

ASJC Scopus subject areas

  • Ophthalmology

Cite this

McDonnell, P. J., Albert, W. C., Cozean, C. H., Johnson, D. G., McDonnell, P. J., Pender, P. M., & Shimmick, J. (1994). Treatment of myopic astigmatism with the 193 nm excimer laser utilizing aperture elements. Journal of Cataract and Refractive Surgery, 20(SUPPL.), 258-261.

Treatment of myopic astigmatism with the 193 nm excimer laser utilizing aperture elements. / McDonnell, Peter J; Albert, W. C.; Cozean, C. H.; Johnson, D. G.; McDonnell, P. J.; Pender, P. M.; Shimmick, J.

In: Journal of Cataract and Refractive Surgery, Vol. 20, No. SUPPL., 1994, p. 258-261.

Research output: Contribution to journalArticle

McDonnell, PJ, Albert, WC, Cozean, CH, Johnson, DG, McDonnell, PJ, Pender, PM & Shimmick, J 1994, 'Treatment of myopic astigmatism with the 193 nm excimer laser utilizing aperture elements', Journal of Cataract and Refractive Surgery, vol. 20, no. SUPPL., pp. 258-261.
McDonnell, Peter J ; Albert, W. C. ; Cozean, C. H. ; Johnson, D. G. ; McDonnell, P. J. ; Pender, P. M. ; Shimmick, J. / Treatment of myopic astigmatism with the 193 nm excimer laser utilizing aperture elements. In: Journal of Cataract and Refractive Surgery. 1994 ; Vol. 20, No. SUPPL. pp. 258-261.
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