YAG laser after cataract surgery
Months or years after cataract surgery, the thin membrane behind the new lens can turn hazy and blur your vision again. A YAG laser makes a small clear opening in it in a few minutes. Vision usually clears within a day or so. [R2]
Laser to prevent angle-closure glaucoma
If the drainage angle of your eye is narrow, a YAG laser can make a tiny opening in the iris so fluid can flow freely and the risk of a sudden pressure rise falls. It is often done in both eyes. [R10]
Retinal laser
A green laser can seal leaking blood vessels, treat abnormal new vessels caused by diabetes or blocked retinal veins, and seal small retinal tears before they lead to a detachment. The aim is to protect the sight you have; laser does not usually bring back sight that has already been lost. [R11]
What to expect
- Numbing drops are used; some treatments need a contact lens gently placed on the eye.
- You may see bright flashes during treatment.
- Vision may be blurred for a few hours, so bring someone to take you home.
- We'll check your eye pressure afterwards and give you drops if needed.
Looking for laser treatment to stop wearing glasses? See LASIK & vision correction.
When to get help urgently
Contact the hospital immediately if you experience severe eye pain, persistent flashes of light, or a curtain over your vision after laser treatment.
Who treats eye laser treatments here
Dr. Praveen Kumar
Consultant Ophthalmologist
Questions patients ask
Is YAG laser painful?
No. Numbing drops ensure you feel no pain. You may only notice mild clicks or light flashes.
Can a secondary cataract come back after YAG laser?
No. Once the laser creates the clear opening in the posterior capsule, the haze does not return.
Related guide: LASIK & vision correction options →
References
[R2] Royal College of Ophthalmologists, Cataract Guidelines (YAG Capsulotomy); [R10] AAO Glaucoma Guidelines; [R11] AAO Retinal Laser Photocoagulation Guidelines.