Photorefractive Keratectomy (PRK)
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Title: Photorefractive Keratectomy (PRK)
Author (s): Russell Swan, MD; Mark Mifflin, MD
Date: 01/30/2016
Keywords/Main Subjects: Photorefractive keratectomy; PRK, Refractive surgery; Myopia; Hyperopia; Mitomycin C; Astigmatism
Diagnosis: Myopia, astigmatism
Description: This video demonstrates a standard surgical technique for photorefractive keratectomy at the University of Utah Moran Eye Center with Dr. Mark Mifflin. Below is our standard protocol:
- Calibrate and program the excimer laser
- Prepare the operative cart with the instruments and supplies necessary to perform the procedure
- Prepare the patient with the proper sedation
- Instill topical anesthesia, antibiotics and NSAID drops into the operative eye(s) and clean the eyelashes and fornices
- Position the patient on the laser table
- Drape the eye, being sure to isolate the eyelashes and meibomian glands
- Place a locking eyelid speculum to obtain adequate exposure
- Center the eye in the operative field by adjusting the microscope and/or head position
- Use 8.0mm alcohol well to place 20% alcohol on the epithelium for 40 seconds to loosen it
- Rinse the eye with 3cc of BSS
- Dry the fornices of excess fluid with a microsurgical sponge
- Use Sloane micro-hoe and Mahoney hockey stick to remove epithelium and smooth Bowmans
- Use a microsurgical sponge to remove excess fluid from the bed to obtain uniform hydration
- Ablate the stromal bed with programmed refraction in the laser
- For hyperopic ablations or myopic ablations >-6.0D use MMC (typically 12 seconds).
- Copiously flush surface with BSS, particularly if MMC is used
- Instill antibiotic and steroid drops
- Place bandage contact lens in eye
Format: video
Identifier: Moran_CORE_20259
Faculty Approval by: Mark Mifflin, MD
Russell Swan, MD, ©2015. For further information regarding the rights to this collection, please visit: http://morancore.utah.edu/terms-of-use/