Laser Posterior Capsulotomy

What is a laser posterior capsulotomy?

Laser posterior capsulotomy is a laser procedure that clears up the cloudiness of the lens capsule (posterior capsular opacity) which may occur following cataract surgery. The procedure aims to improve blurred or hazy vision caused by the thickening of the lens capsule.

When is a capsulotomy necessary?

Typically, the natural lens is held inside a lens capsule or bag. During cataract surgery, the natural lens (that has become cloudy) is removed by the surgeon and an artificial lens is inserted into the capsular bag. Over time, the capsular bag may thicken, causing blurred or hazy vision.

A laser posterior capsulotomy creates an opening in the thickened capsule, allowing light to enter the eye and improve vision – provided that the rest of the eye is healthy.

What can I expect from a laser posterior capsulotomy?

A laser capsulotomy is usually a quick procedure performed in the clinic on a machine similar to a slit lamp microscope.

At your appointment, you will be given eye drops to dilate your pupils for the laser capsulotomy. These eye drops will blur your near (reading) vision and you may be more sensitive to bright lighting conditions for 2 – 4 hours following your visit to the clinic.

It is recommended that someone should accompany you to the appointment as you may not feel comfortable driving afterwards.  

What are the complications of a laser posterior capsulotomy?

Serious complications of a laser capsulotomy are rare.  

• Floaters – this is quite common and you may notice black cobweb or spider-like floaters in the eye. This usually subsides within a few days or weeks following the procedure.

• Inflammation – this can occur with any procedure carried out on the eye. Inflammation is typically mild and can be treated with eye drops prescribed by your Ophthalmologist if necessary.

• Cystoid Macular Oedema (CMO) – this is an accumulation of fluid at the back of the eye (retina) in the central area (macula). This may result in a decrease in central vision but can be treated if it does occur.

• Retinal tear or detachment – this is a rare complication, with symptoms including flashing lights, a sudden increase in floaters that persists over time, a ‘veil’ or ‘curtain-like’ appearance over vision.

• Loss of vision: Loss of vision after laser capsulotomy is extremely rare.