About 30 to 60 minutes, depending on the complexity of the surgery.
2. How does the operation work?
A 'trap-door' is created in the outer coat of the eye. This allows fluid to drain out of the eye, bypassing the normal drainage channels (ie the trabecular meshwork).
3. What is the best technique for surgery?
A standard technique has evolved over many years, so that a predictable result can be obtained. In many cases, it is now strongly advisable to use antimetabolites (eg mitomycin C), due to the risk of scarring and bleb failure; however these are not suitable in all cases, particularly in older individuals (eg over age 80 years), or in those with thin conjunctival tissues. A significant advance in glaucoma surgery is the use of adjustable or releasable sutures. Releasable sutures offer the advantage that nearly all suture material can be used removed within a relatively short period after surgery.
4. Is it safe to go diving after trabeculectomy?
Probably not. Thinner-walled blebs might not stand the pressure changes that occur around the eye during diving. A possibility in this circumstance is the development on low eye pressure, with the risk of a severe eye bleed. This could potentially affect vision permanently, and therefore diving is generally not recommended at any time after glaucoma surgery. This is the only safe advice to give. In addition, there is a risk of infection with contaminated sea-water, should water come into contact with the trabeculectomy bleb.
4. How long does it take to recover after surgery?
It takes a few days for the discomfort to settle. Sutures are buried under the surface however they may loosen and cause some degree of minor irritation. Your vision may be blurred for several days after surgery. If you are working, you will need to be aware that you will need a significant amount of time off work, ie at least 2 weeks. Generally, patients are seen every week for the first 4 weeks after surgery. Do not lift heavy items after surgery, until you are told that this is OK. You may need to wear a patch on the operated eye at night for a few weeks. Try to avoid sleeping with operated eye on the pillow. Never rub your eye after glaucoma surgery.
The information on our website is for educational purposes only and is not to replace a consultation with an eye care professional. The condition of each patient is unique and needs to be evaluated properly before any decision can be taken. For appointments with Mr P Galloway contact: BUPA Hospital Leeds, Jackson Avenue, Roundhay, Leeds, West Yorkshire, LS8 1NT, UK. T:0113 269 3939; for Mr Burnett please click here.
