Abstract | PURPOSE: METHODS: In a retrospective noncomparative case series, nddDALK was performed on 22 consecutive eyes of 22 patients with posthydrops scarring because of keratoconus. After a partial thickness corneal trephination, air was injected at superficial to midstromal depth, followed by an anterior keratectomy. Multiple episodes of stromal hydration with a blunt cannula followed by air injection were repeated to leave a thin stromal layer. A #69 Beaver blade (BD, Franklin Lakes, NJ) was used to remove the scar. The best spectacle-corrected visual acuity (BSCVA), spherical equivalent, and refractive cylinder were recorded 12, 24, and 36 months after surgery. Intraoperative and postoperative complications were noted. RESULTS: Twelve months after surgery, the BSCVA was ≥ 20/40 in 68.1% of patients. The mean spherical equivalent was -3.53 ± 2.94 diopters (D), and the average refractive cylinder was 3.42 ± 1.7 D. Microperforations occurred in 6 patients, all of which were successfully tamponaded by an intracameral air injection alone. CONCLUSIONS: nddDALK gives good visual results and quality of vision. In developing countries, lamellar-grade donor corneas are almost the only option available. Apart from visual benefits, the procedure puts the patient at a minimal risk of immune rejection, which is a major complication of penetrating keratoplasty.
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Authors | Hamed Mofeez Anwar, Mohammad Anwar |
Journal | Cornea
(Cornea)
Vol. 30
Issue 12
Pg. 1502-9
(Dec 2011)
ISSN: 1536-4798 [Electronic] United States |
PMID | 21993472
(Publication Type: Journal Article)
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Topics |
- Adolescent
- Adult
- Cicatrix
(etiology, surgery)
- Corneal Diseases
(etiology, surgery)
- Corneal Edema
(complications)
- Descemet Membrane
(surgery)
- Female
- Humans
- Keratoconus
(complications)
- Keratoplasty, Penetrating
(methods)
- Male
- Retrospective Studies
- Visual Acuity
- Young Adult
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