Aphakia

 Aphakia (not "apakia") is a condition where the eye is missing its natural lens.

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What is the lens?

The lens is the clear, flexible structure inside the eye that helps focus light onto the retina for clear vision.

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Causes of Aphakia:

1. Cataract surgery (most common):
   • The lens is removed due to clouding (cataract), and no artificial lens is implanted.
2. Trauma:
   • Injury that causes the lens to be damaged or dislocated.
3. Congenital aphakia:
   • Rare condition where a baby is born without a lens.
4. Lens dislocation diseases:
   • Conditions like Marfan syndrome can lead to lens instability and removal.

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Effects of Aphakia:

• Severe blurred vision (especially for near objects)
• Loss of the eye’s ability to focus (no accommodation)
• Extreme farsightedness if not corrected
• May also cause glare, halos, or visual distortion

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Correction of Aphakia:

• Intraocular lens (IOL) implant during cataract surgery (most common modern solution)
• Thick convex (plus-powered) glasses
• Contact lenses (especially in children or when IOL isn’t suitable)

Let me know if you want to see a diagram showing the difference between a normal eye and an aphakic eye!