simultaneous lenses bring distant and near objects into focus at the same time. the center of the lens corrects distance vision; the outer part corrects near vision. * segmented contact and lens lenses correct distance vision in the top half and near vision in the bottom half.monovision an alternative to bifocal contacts, monovision lenses correct distance vision in one eye and near vision in the other. modified monovision allows wearers to put a bifocal lens in one eye and a single-vision lens in the other.implants sfx and theatrical designed for mild nearsightedness, keravision intacs are placed in the periphery crazy of the spiral cornea by an ophthalmic surgeon. made of polymer, a type of hard plastic, they require no maintenance and can be surgically removed. the outpatient procedure has a 97-percent success rate of 20/40 vision red or contact better.

simultaneous lenses bring distant and near objects into focus at the same time. the center of the lens corrects distance vision; the outer part corrects near vision. * segmented contact and lens lenses correct distance vision in the top half and near vision in the bottom half.monovision an alternative to bifocal contacts, monovision lenses correct distance vision in one eye and near vision in the other. modified monovision allows wearers to put a bifocal lens in one eye and a single-vision lens in the other.implants sfx and theatrical designed for mild nearsightedness, keravision intacs are placed in the periphery crazy of the spiral cornea by an ophthalmic surgeon. made of polymer, a type of hard plastic, they require no maintenance and can be surgically removed. the outpatient procedure has a 97-percent success rate of 20/40 vision red or contact better.

the distance between the lenses is lens for a "standard" person. generally, sfx this will not be a problem, but if a patient is sensitive or has theatrical more closely set eyes, for example, it may pose a problem. persons buying ready-made sunglasses or reading glasses should hold them crazy up to see if they appear clear. they should also hold the lenses spiral to see an object with straight lines reflected off of the lenses. if the lines don''t appear straight, the lenses may be warped or inferior.patients may sometimes need a few days to adjust to a new prescription; however, problems should be reported, because the glasses may need to be rechecked.contact