A visual acuity test to measure clarity at various distances Pupil dilation to examine the natural lens and retina for other eye problems Tonometry, a standard procedure to measure fluid pressure inside the eye Necessary testing to determine if the cataracts are developed enough to be removed An A-Scan Ultrasound to measure the shape and length of the eye, which will be used by your doctor to recommend a lens that will result in the best visual outcome. (Performed only if surgery is recommended)