AIM To describe possible causes of progressive hyperopia in patients who underwent radial keratotomy. MATERIAL AND METHODS The study enrolled 33 subjects who underwent radial keratotomy earlier in their lives, of them 15 controls (29 eyes, group 1) with no refractive error and 18 patients (35 eyes, group II) with progressive hyperopia. The number and type of keratotomy scars was determined du...

The aim of the present study was to compare conventional radial keratotomy (RK) with minimally invasive RK (mini-RK) in terms of achieved incisional depth as well as the histopathologic changes in the rabbit corneal structures. Four conventional RK incisions were performed on the right eye and four mini-RK incisions were performed on the left eye of 12 Island rabbits using a centripetal cutting...

This case series examines the magnitude and regional variation in scleral lens–induced corneal edema postradial keratotomy (RK) eyes. Scheimpflug imaging was used to measure thickness across central 6 mm before after lens wear nine post-RK eyes (median age 64 years). Variations were examined as a function of distance from center (six 0.5-mm annuli) 0° 360°. The median 2.19% (interquartile range...

PURPOSE The eighth annual survey was carried out by mail in February 2000 to investigate the current trends in cataract and refractive surgery in Japan. RESPONDENTS Questionnaires were sent to 930 ophthalmologist members of the Japanese Society of Cataract and Refractive Surgery. Data received from 457 (49.1%) of the recipients were cross-analyzed and compared with those from the previous sur...

We have had 10 years of successful experience with asymmetric radial keratotomy in keratoconus, designed to flatten the steeper central and paracentral areas of the cornea. We think the procedure is the treatment of choice for types I, II, and selected cases of type III keratoconus. The procedure does not adversely affect the results of subsequent surgery such as aphakic epikeratoplasty, cornea...

To the Editor: Radial keratotomy (RK) can be effective in reducing low to moderate amounts of myopia. Occasionally, a patient will “under-respond” to the RK procedure and be left with significant residual myopia. The refractive surgeon may then be presented with a situation where the patient desires more myopic reduction, but the surgeon does not want to perform another RK (for fear of inducing...

A 32-year-old man suffering from keratoconus was treated with radial keratotomy. Twenty weeks later, he presented visual deterioration, edema and corneal perforation. A penetrating keratoplasty was required. The postoperative course was regular, but after 9 months, the patient presented kerato-uveitis. Subsequent phlogistic relapses occurred approximately every 6 months during the following 5 y...

Radial keratotomy is a refractive surgical technique, widely used in the 80s and early 90s to correct myopia and astigmatism, but now overcome by more recent laser techniques. Important consequences, often in patients with more than 45 years of age, are progressive hyperopic shift and/or an increase in corneal astigmatism, whose main cause seems to be an increase in the curvature radius of the ...

Report of a Case. A 41-year-old man had successful bilateral 8-incision RKs done elsewhere in 1992, resulting in 20/20 OU uncorrected visual acuity. As he was trimming a bush in September 1998, a branch (Figure 1) struck him in the right eye. There was immediate pain, blurriness, and tearing. He was seen immediately at a local hospital emergency department by an ophthalmologist and was referred...