The short explanation
A cataract cannot come back once it has been removed, because the clouded natural lens has been replaced by an artificial lens. However, slowly becoming hazy again months or years after surgery is common and is usually due to posterior capsule opacification. The thin membrane that holds the artificial lens in place can become cloudy over time. This is easily treated in most cases with a quick laser procedure called YAG laser capsulotomy, done in the clinic without cuts. Vision often improves quickly afterwards. Your eye doctor will examine you to confirm this is the cause and rule out other problems, such as retina or glaucoma changes.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- Diabetes, glaucoma, and macular problems can also cause blurred vision and need to be checked.
- A sudden change in vision, flashes, floaters or a curtain over vision after cataract surgery should be checked urgently.
- Your glasses prescription may also have changed slightly.
- Government hospitals provide this laser treatment at low cost.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This cannot tell you what is causing your haziness. An eye examination is needed.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Is the haziness due to the capsule becoming cloudy?
- Do I need laser treatment?
- Are there any other eye problems?
- Do I need new glasses?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Emergency — call 112 now
- Call 112 or go to an emergency eye service if you have sudden vision loss, flashes, many new floaters or a curtain over your vision.
Book an appointment soon
- See your eye doctor within a few days if haziness is getting worse.
Raise it at a routine appointment
- Book a routine eye check to examine the haziness.
Sources
The evidence this explanation is built on.
- Eye diseases MedlinePlus (US National Library of Medicine)
- Vision impairment and blindness MedlinePlus (US National Library of Medicine)
- Eye care MedlinePlus (US National Library of Medicine)
Who wrote and reviewed this
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- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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