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J Cataract Refract Surg. 2003 Jul;29(7):1267-72.

Microkeratome-assisted lamellar keratoplasty for keratoconus: stromal sandwich.

Author information

1
Gazi University, School of Medicine, Ophthalmology Department, Ankara, Turkey. bilgihan@med.gazi.edu.tr

Abstract

PURPOSE:

To evaluate microkeratome-assisted lamellar keratoplasty for the treatment of keratoconus when it is not possible to correct the astigmatic ametropia with contact lenses.

SETTING:

Ophthalmology Department, School of Medicine, Gazi University, Ankara, Turkey.

METHODS:

This prospective study comprised 9 eyes of 7 keratoconus patients with contact lens intolerance. The donor cornea was prepared with a microkeratome and punched with a 7.25 mm or 7.50 mm trephine. Following the creation of a standard 9.0 mm corneal flap in the host cornea, the donor stromal button was implanted under this corneal flap like a sandwich. Transepithelial photorefractive keratectomy or laser in situ keratomileusis was performed when the corneal topography and refraction stabilized by the end of the sixth postoperative month. Follow-up ranged from 7 to 22 months.

RESULTS:

All patients gained 5 or more lines (mean 7.2 lines +/- 1.6 [SD]), and no patient lost a line of vision. The mean corneal thickness was 432.7 +/- 36.1 micrometers preoperatively and 578.1 +/- 45.1 micrometers after refractive surgery.

CONCLUSION:

The early visual results of this surgical technique are promising and seem to be comparable to those with penetrating keratoplasty.

PMID:
12900231
[Indexed for MEDLINE]

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