2.2.1. Preoperative ocular pathology: amblyopia, rubella cataract, proliferative diabetic retinopathy, shallow anterior chamber, macular edema, retinal detachment, aniridia or iris atrophy, uveitis, history of iritis, iris neovascularization, medically uncontrolled glaucoma, microphthalmus or macrophthalmus, optic nerve atrophy, macular degeneration (with anticipated best postoperative visual acuity less than 20/30), advanced glaucomatous damage, etc. 2.2.2. Planned postoperative refraction for mono-vision. 2.2.3. Uncontrolled diabetes. 2.2.4. Use of any systemic or topical drug known to interfere with visual performance.