description
PURPOSE How mach impact a hazy cornea make to VA. To quantify corneal opacification To study how corneal opacification and shape affect VA high-order aberration( HOA ) (KR-9000-PW TM TOPCON) high order irregularity( HOI ) (TMS-4 TM TOMY CORPORATION) Dencitometry (Pentacam TM OCULUS)