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What is PI Treatment for Eyes?

Published in Eye Treatment 3 mins read

PI treatment for eyes refers to Peripheral Iridotomy (PI), specifically the YAG PI procedure, a laser treatment used to address certain eye conditions.

Understanding YAG PI

YAG PI is a laser procedure that creates a small opening in the iris, the colored part of your eye. This opening improves the flow of aqueous humor (the fluid within the eye).

Why is YAG PI Performed?

YAG PI is primarily performed for the following conditions:

  • Narrow Angles: When the angle between the iris and the cornea (the clear front surface of the eye) is too narrow, it can restrict the flow of fluid.
  • Narrow Angle Glaucoma: This type of glaucoma occurs when the narrow angle leads to increased pressure inside the eye.
  • Acute Angle Closure Glaucoma: This is a medical emergency where the angle closes suddenly, causing a rapid and dangerous increase in eye pressure.

How YAG PI Works

The procedure involves the following steps:

  1. Laser Application: A YAG laser is used to create a tiny hole in the peripheral iris.
  2. Improved Fluid Flow: This hole allows aqueous fluid to move more easily from behind the iris to the anterior chamber, reducing pressure.

Benefits of YAG PI

  • Reduces Intraocular Pressure: By improving fluid flow, YAG PI helps lower pressure inside the eye.
  • Prevents Angle Closure: It can prevent or manage acute angle closure glaucoma.
  • May Reduce the Need for Medications: In some cases, it may lessen the need for glaucoma medications.

Example

Imagine a sink with a blocked drain. The water backs up because it can't flow properly. YAG PI is like creating an additional drain, allowing the fluid to flow freely and reducing the pressure.

Summary

Condition Description Treatment
Narrow Angles Angle between the iris and cornea is too narrow. YAG PI
Narrow Angle Glaucoma Narrow angle leads to increased eye pressure. YAG PI
Acute Angle Closure Glaucoma Sudden angle closure leading to a dangerous pressure increase; a medical emergency. YAG PI

YAG PI treatment is an important procedure for managing conditions caused by narrow angles in the eye, effectively helping to reduce pressure and prevent further complications.

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