crystalline lens anatomy

anatomical anatomy aspheric astigmatism away biology body care cataract cell closeup condenser condition cornea cross crystal crystalline cut defect device diabetes diabetic diagram disease disorder eye glaucoma health healthcare human illustration implant intraocular iol lasik lens macro medical medicine microsurgical monofocal myopia ophthalmologist ophthalmology optic optical optometrist optometry organ refractive replacement retina retinal retinopathy science section sections sensory silicone structure surgery technology treatment vector vision visual