Post refractive residual corneal astigmatism is a relatively common problem faced by ophthalmologists and their patients. Douglas Donald Koch, MD demonstrates how Peripheral Corneal Relaxing Incisions (PCRI’s) can improve patient outcomes. The patient in this case study was eight months post Lasik with uncorrected visual acuity (UCVA) of 20/30. By placing a pair of 45 degree arcuate Astigmatic Keratotomies (AK/PCRI), Professor Koch was able to reduce corneal astigmatism by one diopter. One month post PCRI, the patient’s UCVA had improved to 20/20.
Professor Koch began using Mastel diamonds during his fellowship in the 1980’s at the Cullen Eye Institute in Houston, TX. In this case he demonstrates the PHD II scalpel with CV Footplate and Fine Triamond Diamond in conjunction with the Jarvi Doubler Guide Ring.