Here are additional pre-surgical case examples to review: - Patient 1: Keratoconus in both eyes, worse in right. Best corrected vision 20/60 in right, 20/40 in left. Steep cornea with thinning. Consider Intacs to flatten cornea and improve vision. - Patient 2: Asymmetric keratoconus. Left eye moderate, right eye advanced. Right eye best corrected 20/100. Consider Intacs in right eye to improve vision and stabilize further ectasia. - Patient 3: Keratoconus diagnosed 5 years ago. Wears rigid gas permeable lenses but vision fluctuates. Best corrected 20/40. Consider Intacs to improve and stabilize vision long term