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Abstract
number of incisions required to achieve the desired correction and fora patient of any given age.’
The history of incisional refractive surgery retums to the la. 19u) century when Lans showed experimentally that non perforating radial incisions caused centml corneal flattening, accompanied by peripheral steepening..
In 1930s, Professor Tsutornu Sato of Juntendo University, Tokyo observed corneal flattening in several patients after performing anterior and posterior radioi incisions in the cornea. This was followed by corneal oedema in many cases..
Sato’s technique was modified in the early 1970s by several Soviet ophthalmologists including Beliaev and Ilyina who demonstrated that malting radial incisions in the anterior corneal stroma caused the central cornea to flatten.