4 Terms
Contributors in Contact lenses
Contact lenses
Contact lens, daily wear
Eyewear; Optometry
Contact lenses designed to be worn only during waking hours. Frequent & planned replacement contact lenses general term used to refer to contact lens regimens in which lenses are replaced on a ...
Secondary implant
Eyewear; Optometry
If no lens was placed in the eye at the time of cataract removal surgery, then a secondary procedure to implant an intraocular lens may be completed later.
Contact lens, disposable
Eyewear; Optometry
Contact lenses defined by the U.S. Food and Drug Administration as a contact lens that is used one time and discarded. These can be worn either for a single day or up to seven days, depending on wear ...
Shirmer test
Eyewear; Optometry
Tiny strips of philtre paper are placed in the patient's eyes just under the lids. After five minutes the distance the tears have stained the paper is measured. The greater the distance, the higher ...
Millimicron
Eyewear; Optometry
A nanometer, or 10 to the -9 power meter. The term millimicron was used before 1967.
Contact lens, extended wear
Eyewear; Optometry
Contact lenses designed to be worn around-the-clock for intervals of one to seven days.
Contact lens, therapeutic
Eyewear; Optometry
Contact lenses designed to aid in protecting and helping a sick eye to heal. These unique lenses are frequently combined with precise medication delivery schedules to heal the eye.