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YAG Capsulotomy: How a YAG Laser Works

A laser is a strong beam of energy that can be focused on a tiny point. A laser can be precisely controlled. This makes it safe and reliable.

The YAG laser

For a capsulotomy, your eye doctor uses a YAG laser. The YAG laser gives off fast, tiny bursts of energy. A special contact lens may be used to help focus the laser on the right spot. The laser passes through the front of your eye. It also passes through your new IOL (intraocular lens). It doesn’t harm them. When the laser reaches your posterior capsule, it makes a tiny opening. Light can then enter your eye again. Your posterior capsule is still able to hold your IOL in place.

 Cross section side view of eye showing YAG laser beam entering clear cornea and through pupil to IOL in cloudy posterior capsule. Laser makes opening in cloudy capsule to allow light to pass through again.

 

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