98th Annual Meeting DOG 2000

P 733

Combined phototherapeutic/photorefractive keratectomy (PTK/PRK) in superficial corneal degeneration

G. Wellermann, G. W. K. Steinkamp, M. Baumeister, J. Bühren, M. Brieden

Introduction: Refractive results after photoablative-therapeutic treatment of superficial corneal scars and simultaneously treatment of refractive errors.

Patients and methods: Two patients with central corneal degeneration have been treated with the excimer laser Keracor 217 (Technolas/Bausch& Lomb, software PlanoScan). The preoperative spherical equivalent was –1,25 D (Patient A) and –2,00 D (Patient B). In both cases the central ablation zone was 6.0 mm with a treatment zone of 13.0 mm.

Results: Preoperative best-corrected visual acuity (BCVA) was 0.32 (patient A) and 0.4 (patient B). Four weeks postoperatively the uncorrected visual acuity (UCVA) was 0.63 and 1.0 (patient A,B).

Conclusion: At the time of superficial corneal degeneration treatment using phototherapeutic keratectomy, refractive errors can be treated with PRK to optimise uncorrected visual acuity.

Johann Wolfgang Goethe University Frankfurt, Dep. of Ophthalmology, Theodor-Stern-Kai 7, D-60590 Frankfurt/Germany