Cataracts may occur in people who also have
glaucoma; this commonly occurs in older people.
If you have glaucoma and cataracts, you may consider having surgery
for both conditions at the same time. Depending on which condition caused the
vision loss, you may have improved vision after surgery.
- If the vision loss before surgery was mostly
caused by the cataract, you may have noticeable improvement in your vision.
Also, surgery may delay the progression of vision loss caused by
glaucoma.
- If the vision loss before surgery was mostly caused by
glaucoma, rather than the cataract, you may not have much improvement in vision
after surgery. However, surgery may slow the loss of vision caused by
glaucoma.
People whose glaucoma is controlled by using one medication and who
need cataract surgery usually have cataract surgery only. Cataract surgery
alone is quicker and less complicated than having both surgeries at the same
time.
A review by the U.S. Agency for Healthcare Research and Quality
(AHRQ) found that glaucoma surgery is associated with an increased risk of
cataracts developing after the surgery.1 In many cases
where glaucoma and cataract occur together, surgery to treat both conditions
may be done at the same time. The AHRQ review found that:
- Combining glaucoma surgery with cataract surgery
lowers the pressure inside the eye (intraocular pressure, or IOP), which is a
factor in many cases of glaucoma, more than cataract surgery alone; however,
evidence indicates that glaucoma surgery alone is more effective at lowering
IOP than the combined surgery.
- The same complications may occur
with the combined surgery as occur with either glaucoma or cataract surgery
alone.
If you have both glaucoma and cataracts, talk with your doctor about
the benefits and risks of combined surgery to treat both conditions.