A<unk>  is an opacification of the natural intraocular crystalline lens that transmits the light entering the eye onto the retina in the posterior part of the eye. The opacification leads to a decrease in vision and may lead to complete vision loss if left untreated for long.<unk> s are the leading cause of preventable blindness in the world . At present, there is no preventive intervention for the progression of<unk> s. The modern<unk>  surgery, which is the removal of the opacified lens and implantation of a clear intraocular lens (IOL), is the only known and approved treatment for<unk> . The<unk>  surgery involving removal of natural lens and implantation of IOL is the most effective procedure performed in ophthalmology with 3 million Americans choosing to have<unk>  surgery each year, and with a success rate of 97 percent or higher.
Cataract
Ocular hypertension
Glaucoma
Refractive error
Oculomotor nerve palsy
Cat eye syndrome
Color blindness
Otosclerosis