Capsulorhexis
Capsulorhexis
Capsulorhexis (pronunciation: cap-su-lo-rex-is) is a medical term used in ophthalmology to describe a surgical technique used during cataract surgery.
Etymology
The term "Capsulorhexis" is derived from the Greek words "kapsula" meaning "small ship" and "rhexis" meaning "rupture".
Definition
Capsulorhexis is a procedure that involves creating a circular tear in the anterior capsule of the eye's lens to allow for the removal of the lens during cataract surgery. This is a critical step in the surgery as it allows for the safe removal of the cataractous lens and the placement of the intraocular lens implant.
Procedure
The procedure is typically performed using a small, sharp instrument called a cystotome, although other instruments such as forceps or a needle may also be used. The surgeon makes a small incision in the cornea and then creates a circular tear in the anterior capsule of the lens. This opening allows the surgeon to access and remove the cloudy lens material.
Related Terms
- Cataract Surgery: A surgical procedure to remove the lens of your eye and, in most cases, replace it with an artificial lens.
- Intraocular lens: An artificial lens that is implanted in the eye during cataract surgery.
- Anterior Capsule: The front part of the lens capsule, a clear, flexible structure that surrounds the lens of the eye.
See Also
- Phacoemulsification: A modern cataract surgery in which the eye's internal lens is emulsified with an ultrasonic handpiece and aspirated from the eye.
- Lens (anatomy): A part of the eye that, along with the cornea, helps to refract light to be focused on the retina.
External links
- Medical encyclopedia article on Capsulorhexis
- Wikipedia's article - Capsulorhexis
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