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最早的角膜热成形术是用90～120℃的探头表面透热来改变角膜曲率,后来用微电极和射频电流。Caster改进此手术治疗远视眼,Fyodorov又将其发展,他们是用微电极插入一定深度,600℃,3秒,点状透热,放射排列。问题是术后角膜有周边部瘢痕和溃疡形成。Mainster用激光行角膜热成形术,优点是角膜实质热度一致,减少了表面及内皮的热损
The earliest keratoplasty is the use of 90 ~ 120 ℃ probe surface diathermy to change the corneal curvature, and later with microelectrode and RF current. Caster to improve this operation for the treatment of hyperopia, Fyodorov and its development, they are inserted into a certain depth of microelectrode, 600 ℃, 3 seconds, punctate diathermy, radiological arrangement. The problem is the cornea around the scar and ulcer formation. Mainster laser keratomileusis thermoplasty, the advantage of corneal real heat is consistent, reducing the surface and endothelium heat loss