Articles: PDF OnlyUltrasound biomicroscopic assessment of the cornea following excimer laser photokeratectomyPavlin, Charles J. M.D.a, 1; Harasiewicz, Kasia P.Eng.b; Foster, Stuart F. Ph.D.b, *Author Information aDepartment of Ophthalmology, Princess Margaret Hospital, Toronto, Canada. bDepartment of Medical Imaging, Sunnybrook Health Science Centre, Toronto, Canada. 1Reprint requests to Charles J. Pavlin, M.D., FR.C.S., Ocular Oncology Clinic, Princess Margaret Hospital, 500 Sherbourne Street, Toronto, Ontario, Canada M4X 1K9. *Dr. Foster is a Terry Fox Scholar of the National Cancer Institute of Canada. Supported in part by the National Cancer Institute of Canada and Zeiss-Humphrey. Journal of Cataract & Refractive Surgery: March 1994 - Volume 20 - Issue - p 206-211 doi: 10.1016/S0886-3350(13)80754-7 Buy Metrics Abstract Excimer laser photokeratectomy is used as a refractive tool and in the treatment of superficial corneal disease. Ultrasound biomicroscopy is a new method of ultrasound imaging developed in our laboratories that allows subsurface imaging of ocular structures at microscopic resolution. We used this imaging method to examine 12 patients following excimer laser keratoablation. Following treatment, the normal appearance of a highly reflective Bowman's membrane below the epithelial echo was absent in the treatment zone. Corneal thinning was also noted. Postoperative scarring in the treatment area could be imaged as highly reflective regions in the superficial stroma. In therapeutic cases, corneal opacities could be imaged pretreatment and their depth assessed. The degree of opacity removal could be analyzed post-treatment. Ultrasound biomicroscopy helped assess corneal changes secondary to excimer laser photokeratectomy. © Williams & Wilkins 1994. All Rights Reserved.