Treatment of Presbyopia With Conductive Keratoplasty??
- 1 October 2004
- journal article
- research article
- Published by Ovid Technologies (Wolters Kluwer Health) in Cornea
- Vol. 23 (7), 661-668
- https://doi.org/10.1097/01.ico.0000126321.13143.a0
Abstract
To provide 6-month results of a 1-year clinical trial evaluating conductive keratoplasty (CK) for the treatment of presbyopic symptoms in emmetropic and hyperopic eyes. A total of 143 patients with presbyopic symptoms were enrolled in this 1-year United States FDA clinical trial and treated to improve near vision in 1 eye (unilateral treatment). In addition, 33 fellow eyes were treated to improve distance vision (bilateral treatment). For near vision correction, the target refraction was up to -2.0 D in the nondominant eye, and for distance vision correction, 0.0 D. Enrolled patients had a preoperative spherical equivalent of plano to +2.00 D, no more than 0.75 D of refractive astigmatism, and were 40 years of age or older. No retreatments were performed. Of the eyes treated for near, 77% had uncorrected near vision of J3 or better at 6 months postoperatively. A total of 85% of all patients had binocular distance UCVA of 20/25 or better along with J3 or better near, a combination that represents functional acuity for a presbyope. Sixty-six percent of eyes treated for near had a manifest refractive spherical equivalent (MRSE) within +/- 0.50 D of intended at 6 months. In 89% of eyes, the MRSE changed 0.05 D or less between 3 and 6 months postoperatively. After month 1, the incidence of variables associated with safety was 1% or lower. Seventy-six percent were very satisfied or satisfied with their procedure. CK appears to be very safe and effective in producing functional visual acuity in presbyopic eyes up to 6 months following the procedure. Patient satisfaction with the procedure is similar to that of monovision LASIK.Keywords
This publication has 23 references indexed in Scilit:
- Implantation of scleral expansion band segments for the treatment of presbyopiaAmerican Journal of Ophthalmology, 2002
- Conductive keratoplasty for the correction of low to moderate hyperopia: U.S. Clinical trial 1-year results on 355 eyesOphthalmology, 2002
- Conductive keratoplasty for the correction of low to moderate hyperopia: 1-year results on the first 54 eyesOphthalmology, 2002
- Laser in situ keratomileusis monovisionJournal of Cataract & Refractive Surgery, 2001
- Monovision: a Review of the Scientific LiteratureOptometry and Vision Science, 2001
- Monovision outcomes in presbyopic individuals after refractive surgeryOphthalmology, 2001
- Monovision Achieved with Excimer Laser Refractive SurgeryInternational Ophthalmology Clinics, 2001
- Binocular function and patient satisfactionafter monovision induced by myopic photorefractive keratectomyJournal of Cataract & Refractive Surgery, 1999
- Hyperopia Correction by Noncontact Holmium: YAG Laser Thermal KeratoplastyOphthalmology, 1997
- Success of monovision in presbyopes: Review of the literature and potential applications to refractive surgerySurvey of Ophthalmology, 1996