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What Is Iris Pigment Dispersion?

Iris pigment dispersion occurs when pigment granules from the iris surface shed into the eye's fluid. These particles circulate through the drainage system and may raise pressure. People may notice glare, halos, or intermittent blur. This condition often appears in young to middle-aged adults. Exams help determine how much pigment is released and whether pressure is rising.

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What Is Iris Pigment Dispersion?

Iris pigment dispersion occurs when pigment granules from the iris surface shed into the eye's fluid. These particles circulate through the drainage system and may raise pressure. People may notice glare, halos, or intermittent blur. This condition often appears in young to middle-aged adults. Exams help determine how much pigment is released and whether pressure is rising.

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What Causes Pigment Dispersion?

The iris rubbing against the lens zonules is a frequent source of pigment release. Structural variations in the iris shape make contact more likely. Exercise or pupil dilation can increase rubbing. Trauma may also loosen pigment. Identifying the trigger helps guide care.

Symptoms of Pigment Dispersion

People may see halos after physical activity. Vision may blur briefly when pigment surges through the drainage system. Some notice increased light scatter. Pressure spikes may cause mild discomfort. Symptoms vary by activity level.

How Is Pigment Dispersion Diagnosed?

Doctors observe pigment on the corneal endothelium and in the angle. Pressure measurements track fluctuations. Gonioscopy reveals pigment accumulation in drainage channels. Imaging may be used to study iris shape. Diagnosis helps determine risk of long-term pressure elevation.

How Is Pigment Dispersion Treated?

Management focuses on stabilizing pressure. Medication helps reduce fluctuations. Laser procedures may reshape iris movement in selected cases. Activity modification can reduce pigment release. Long-term monitoring checks for progression to pigmentary glaucoma.

Frequently Asked Questions About Pigment Dispersion

Does it cause glaucoma?

It can if pigment blocks the drainage angle.

Can exercise trigger symptoms?

Yes. Activity can increase pigment release.

Does pigment return to the iris?

No. Released pigment does not replace itself.

When should I seek care?

Seek care if halos, blur, or pressure spikes develop.