The monofocal lens has a single focus, meaning it allows the treated eye to see clearly at a single distance. As for a monofocal lens, the optometrist and ophthalmologist can offer you different correction options:
Two eyes corrected to improve distance vision
This option will allow you to benefit from the best quality vision for activities requiring you to see far away (e.g. driving during the day/at night, watching television, going to the movies, participating in sports, etc.). This is what nature should have given you at birth.
Nonetheless, you will have to wear glasses to correct your medium and near vision (e.g. reading, working on a computer, cooking, reading your watch, applying your make-up, shaving, doing arts and crafts, etc.). Progressive lenses may be necessary, even if you don’t need to wear them to see far.
Monovision: One eye corrected for distance vision and the other for near vision
You may choose to correct one eye (dominant eye) for better distance vision and the other eye (dominated eye) for better near vision. This is an option for reducing your reliance on glasses and contact lenses. Prior to surgery, monovision can be simulated by contact lenses. Monovision requires the ability to adapt because it compromises vision quality.
Corrective lenses may be necessary to balance your vision during tasks requiring precision or for improved comfort during extended activities (e.g. driving at night, working on the computer, reading fine print, etc.)
Multifocal lenses use an optical principle whereby light is separated into several focal points. This principle produces “simultaneous vision” at more than one distance at a time, in the same eye.
In some cases, multifocal contact lenses can help to understand or simulate the effect of an intraocular multifocal lens prior to surgery. Multifocal lenses may be right for you if you really want to get rid of your corrective lenses for both distance and near vision.
Multifocal lenses allow you to be independent without glasses or contact lenses for distance and near vision.