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Corneal resection improves daily visual function in ectatic post-PK patients

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BERLIN — Corneal resection in patients with high astigmatism secondary to progressive host ectasia after penetrating keratoplasty can improve their daily visual function, a surgeon said here.

"We found that wedge resection in high astigmatism eyes after PK slanted to improving function, improved specifically contact lens tolerance to avoid repeating PK," Luke Maccherone, MD, said at the European Society of Cataract and Refractive Surgeons meeting.

He presented his retrospective study of 16 astigmatic eyes in which patients underwent corneal resection of 4 to 5 clock hour length and 1-mm to 1.5-mm widths. After an average of 33.4 months of follow-up, the number of patients with day-to-day functioning visual acuity of 6/12 increased from three to nine, Dr. Maccherone said.

Visual rehab is slow, but he said this could be because of the intentional overcorrection.