Corneal Wedge Excision in the Treatment of High Astigmatism After Penetrating Keratoplasty
- 1 August 2007
- journal article
- case report
- Published by Ovid Technologies (Wolters Kluwer Health) in Cornea
- Vol. 26 (7), 819-825
- https://doi.org/10.1097/ico.0b013e318093de39
Abstract
To report 5 cases of high astigmatism after penetrating keratoplasty (PK) treated with corneal wedge excisions. We report our experience of 5 patients treated with corneal wedge excisions for high astigmatism after PK. A thin sliver of cornea measuring between 0.1 and 0.2 mm in thickness was excised from just inside the graft-recipient interface. The length of the incision centered at the axis of the flatter meridian of the cornea and was extended over a range of 60-90 degrees. The wound was closed with interrupted 10-0 nylon sutures placed every 15 degrees. We also report, for the first time, both pre- and postoperative corneal topography in 3 of our patients who underwent wedge excisions. The mean preoperative astigmatism was 15.2 D (range, 8.5-29.1 D). Postoperatively, after wedge excision, the mean astigmatism was reduced to 2.3 D (range, 1.9-3.7 D). The mean reduction in astigmatism was 12.9 D (range, 6.3-25.4 D). Corneal wedge resection is an effective treatment for high astigmatism after PK. It may prove particularly useful in cases of high astigmatism or where other treatments are not appropriate. We believe that there is still a role for wedge resection as one of many tools to be used in the treatment of high post-PK astigmatism.Keywords
This publication has 19 references indexed in Scilit:
- Artisan toric lens implantation for correction of postkeratoplasty astigmatism*1Ophthalmology, 2004
- Contact lens fitting following corneal graft surgeryClinical and Experimental Optometry, 2003
- A new technique for rigid gas permeable contact lens fitting following penetrating keratoplastyActa Ophthalmologica Scandinavica, 2001
- Photorefractive keratectomy for post-penetrating keratoplasty myopia and astigmatismJournal of Cataract & Refractive Surgery, 2000
- Arcuate relaxing incisions with a 5.00-mm optical zone for the correction of high postcataract astigmatism.Ophthalmologica, 2000
- Penetrating keratoplasty for keratoconus: A long-term review of results and complicationsJournal of Cataract & Refractive Surgery, 2000
- Effect of a standard paired arcuate incision and augmentation sutures on postkeratoplasty astigmatismJournal of Cataract & Refractive Surgery, 2000
- Piggyback intraocular lens implantationCurrent Opinion in Opthalmology, 2000
- Factors Predictive of Corneal Graft SurvivalOphthalmology, 1992
- Penetrating Keratoplasty for KeratoconusCornea, 1987