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Table 3 Comparison of the increase in corneal strain induced by a LASIK flap, sidecut only, and delamination only

From: Small incision lenticule extraction (SMILE) history, fundamentals of a new refractive surgery technique and clinical outcomes

  90μm 160μm
LASIK Flap 9% 32%
Sidecut Only 9% 33%
Delamination Only 5% 5%
  1. Percentage increase in central corneal strain (to an intraocular pressure change from 15 mmHg to 15.5 mmHg) after the creation of a LASIK flap, a sidecut or delamination at both 90 μm and 160 μm. (Data obtained from [64]).