401. Conductive keratoplasty to correct hyperopic astigmatism.
- Author
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Pallikaris IG, Naoumidi TL, and Astyrakakis NI
- Subjects
- Adult, Corneal Topography, Female, Humans, Male, Middle Aged, Prospective Studies, Refraction, Ocular physiology, Treatment Outcome, Visual Acuity physiology, Astigmatism surgery, Cornea surgery, Hyperopia surgery, Laser Coagulation methods
- Abstract
Purpose: To evaluate the efficacy of conductive keratoplasty in the treatment of pre-existing and surgically induced hyperopic astigmatism., Methods: In this prospective, noncomparative case series, four eyes of four subjects, two female and two male (age 25 to 47 yr) were treated for hyperopia (up to +5.50 D) and hyperopic astigmatism (up to +5.75 D) with the Refractec ViewPoint conductive keratoplasty system. The follow-up period was 6 months. Uncorrected and spectacle-corrected visual acuity, manifest and cycloplegic refraction, and videokeratographs were obtained before and after surgery. We treated two patients who had already had LASIK, one of them with a decentered ablation and the other with flap striae, one patient after PRK, and one patient with keratoconus., Results: No complications were observed. No eye lost lines of spectacle-corrected visual acuity. All eyes showed improvement of uncorrected visual acuity of 3 or more lines. Videokeratographs demonstrated improved centration and reduction in keratometric power readings. Each eye was analyzed separately, including a comparative analysis of the proposed nomograms and quality of vision after surgery., Conclusions: Conductive keratoplasty may be a minimally invasive solution for patients with irregular hyperopic astigmatism, offering improved quality of vision in instances of flap striae by tightening the central cornea.
- Published
- 2003
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