Intraocular lenses
Intraocular Lenses
Intraocular lenses (IOLs) are medical devices that are implanted inside the eye to replace the eye's natural lens when it is removed during cataract surgery.
Pronunciation
Intraocular lenses: /ˌɪntrəˈɒkjʊlər ˈlɛnzɪz/
Etymology
The term "Intraocular" is derived from Latin, where "intra-" means "within" and "ocular" means "eye". The term "lens" is derived from the Latin word "lens", which means "lentil", due to the similarity in shape.
Types of Intraocular Lenses
There are several types of IOLs available, including:
- Monofocal IOLs: These lenses provide clear vision at one distance only (near, intermediate, or far).
- Multifocal IOLs: These lenses provide clear vision at multiple distances.
- Accommodating IOLs: These lenses provide clear vision at multiple distances by shifting their position in the eye.
- Toric IOLs: These lenses correct astigmatism.
Related Terms
- Cataract: A clouding of the natural lens in the eye.
- Phacoemulsification: A type of cataract surgery in which the natural lens is emulsified with an ultrasonic handpiece and aspirated from the eye.
- Astigmatism: A common vision condition that causes blurred vision due to the irregular shape of the cornea or the lens inside the eye.
See Also
External links
- Medical encyclopedia article on Intraocular lenses
- Wikipedia's article - Intraocular lenses
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