Refractive results of radial keratotomy after 10 years.

Background: We analyzed retrospectively the refractive and visual results of a cohort of patients who underwent radial keratotomy for myopia 10 years ago.

Methods: Radial keratotomies using centripetal incisions were performed by the same surgeon in 1986 and 1987 to correct myopia of -0.75 to -10.

Hot needle thermal keratoplasty to correct naturally occurring hyperopic astigmatism.

Objective: To study the safety, effectiveness, predictability and stability of sectoral thermal keratoplasty in the treatment of naturally occurring hyperopic astigmatism.

Methods: Using Fyodorov's technique, sectoral controlled coagulations were applied on both sides of the flattest meridian in 12 eyes from eight patients with naturally occurring hyperopic astigmatism. Preoperative average refractive cylinder was +3.

[Intrastromal thermokeratoplasty for correction of spherical hyperopia: a 1-year prospective study].

Thermokeratoplasty (TKP) is a new procedure for surgical correction of hyperopia. It uses controlled thermal burns of the peripheral cornea with a retractable cautery probe tip in a radial pattern up to a premarked optical central zone. The thermal effect shrinks the peripheral cornea and steepens the central cornea.

[Values and complications of peripheral deepenings in radial keratotomies].

Single and double peripheral deepenings were used to increase the refractive effect of radial keratotomy (RK). The objective of this study was to statistically evaluate the effect and the complications of these surgical techniques. Simple and double peripheral deepenings were performed in 36 patients (52 eyes) and 14 patients (19 eyes) respectively.