Use of scleral lenses and miniscleral lenses after penetrating keratoplasty

Melissa Barnett, Vivian Lien, Jennifer Y. Li, Blythe Durbin-Johnson, Mark J. Mannis

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Purpose: To examine the clinical outcomes of scleral lenses for visual rehabilitation after penetrating keratoplasty (PK). Methods: A retrospective review was conducted for 34 patients (48 eyes) who had a history of prior PK and were fit with scleral lenses between October 2009 and December 2013 at the UC Davis Eye Center. Results: The most common initial indication for PK was keratoconus in 27 eyes (56%). Thirty-three eyes (69%) had previously been fit with other types of contact lenses, with small-diameter rigid gas-permeable lenses being the most common. The improvement in best-corrected visual acuity with a scleral lens compared with prior spectacle refraction or other contact lens was a mean of two best-corrected visual acuity lines. Forty-four eyes (91.7%) achieved functional vision with best scleral lens-corrected visual acuities of 20/40 or better. Patients who continued wearing scleral lenses were significantly more likely to report "good" subjective vision compared with patients who abandoned scleral lens wear (P 0.009), although change in objective best-corrected visual acuity did not differ significantly. There were no cases of infectious keratitis. Six eyes (12.5%) developed graft rejection; 3 were able to resume scleral lens wear. Nineteen eyes (39.5%) discontinued scleral lens wear for various reasons, the most common reason for discontinuation of lens wear was difficulty with scleral lens insertion or removal (8 eyes, 42.1%). Conclusion: Scleral lenses are effective and safe in patients who have had PK. There was a mean gain in visual acuity, with the majority of patients achieving 20/40 vision or better. The patient's subjective perception of vision was a significant factor in determining whether scleral lens wear was continued or abandoned.

Original languageEnglish (US)
Pages (from-to)185-189
Number of pages5
JournalEye and Contact Lens
Volume42
Issue number3
DOIs
StatePublished - May 1 2016

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Keywords

  • Contact lens
  • Keratoconus
  • Penetrating keratoplasty
  • Scleral lens
  • Scleral lens fitting

ASJC Scopus subject areas

  • Ophthalmology

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