What is capsulorhexis?

and capsulorhexis is a continuous circular cut created by the surgeon of cataract on the front surface of the human eye lens capsules to allow the removal of the cloudy lens. The lens capsules, elastic, transparent membrane composed of collagen that surrounds the lens, holds the lens in the correct position in the eye and forms its shape during vision activities such as reading. When the lens frosts due to age, trauma or the use of steroids, capsulorhexis is performed using a needle or pliers to create a drain in a capsule, which has approximately 4.0 to 5.5 millimeters (0.15 to 0.20 inches) in diameter. After removing the opaque natural lens using ultrasound, an implant or an artificial lens is inserted into the capsule bag through the opening in the capsule. The ideal capsulorhexis produces a aperture with a smooth, stable circuit that overlaps the artificial lens at least 0.5 millimeters (0.02 inches), while the edges of the implant are completely covered.

The surgeon initiates capsular tear with central cut through an elastic membrane using a needle called cystoTom. At the end of the cut, the needle is pushed or overcast to form a flap in a membrane that folds over each other. The rear surface of the valve is connected and directed with pliers or needle with a traction developed in a circular direction. Once the continuous cut is completed all the way in the circle, the free central island is removed from the membrane using the pliers. During the capsulorhexis, the viscoelastic gel is inserted into the eye to push the back direction through the lens, maintain the voltage on the capsule and increases the cut direction.

Successful capsulorhexis is a critical step to ensure a good result of cataract surgery. It allows you to introduce liquid through the hole and direct the lens between the capsules and cloudems, facilitating its removal. Smooth curved tear prevents the formation of radial tears in capsules that can disassemble into the back of the capsule, causing the lens to drop back into the eye. Other alleged advantages of capsulorhexis include reduced capsules after surgery and better centering of the implant after surgery. For these reasons most chThe cataract prefers continuous curvature over older capsulotomy, during which the opening was created by puncture in a needle circle.