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Updated: Sep 13, 2026

Corneal Donor Tissue Preparation for Endothelial Keratoplasty
Published on: June 12, 2012
Corneal steepening in human eye bank eyes by combined hexagonal and transverse keratotomy
M L Gilbert1, M H Friedlander, N Granet
1Department of Ophthalmology, Tulane University Medical School, New Orleans, La 70112.
Abstract:
An interrupted 5 mm diameter hexagonal keratotomy was modified to include six paracentral transverse incisions to augment the central corneal steepening. This combined modified-hexagonal and transverse (or hexagonal-transverse) keratotomy was performed on human eye bank eyes to an estimated 85% corneal depth yielding a mean of 7.50 +/- 1.69 diopter increase in central keratometric power (P less than .001); this finding was confirmed by keratography. These results encourage further studies of this procedure and its potential to surgically correct mild amounts of hyperopia.

