Cataract Surgery in Glaucoma Patients

MIGS stands for minimally invasive glaucoma surgery. A specialist can perform a MIGS procedure at the same time as cataract removal. MIGS either places a tiny device inside the eye or creates a small opening to help fluid drain more effectively. It is most appropriate for mild to moderate open-angle glaucoma. Because the MIGS step uses the same small incision made for the cataract, no additional wound is required, and the overall surgery remains brief with a low risk of complications.

Research has looked at which part of a combined procedure does the most work. The cataract removal itself is responsible for the majority of the pressure and medication reduction, with the MIGS step contributing an additional portion. Together, they can provide meaningful long-term pressure control. Some patients are able to reduce or stop their daily glaucoma drops after a combined procedure, though this depends on how severe the glaucoma is and how the eye responds over time.

Clearer vision and lower eye pressure together can make a real difference in how patients feel day to day. Studies have shown that patients who had combined MIGS and cataract surgery reported greater improvements in quality of life at two years compared to those who had cataract surgery alone. Fewer eye drops also means less daily irritation from preservatives, less dry eye, and a simpler routine. Many patients find that the reduction in drops is one of the most valued outcomes of treatment.

Cataract surgery can lower eye pressure, which helps protect the optic nerve, but it is not a standalone treatment for glaucoma. Ongoing monitoring remains necessary, and many patients continue to need some level of medication or other care. The pressure reduction is a meaningful benefit, but glaucoma requires lifelong management even after a successful surgery.

Surgery is often still possible with advanced glaucoma, but the approach may be modified. A specialist may recommend a more substantial glaucoma procedure or schedule it in a separate stage. The decision depends on how much pressure reduction is needed, how stable the optic nerve is, and what level of surgical complexity is appropriate. A thorough evaluation helps determine the safest and most effective path for each individual.

In many patients, the reduction in eye pressure holds for several years. The duration depends on the type of glaucoma, the starting pressure level, and whether a MIGS device was placed. Regular follow-up visits allow the care team to track pressure trends over time. If pressure gradually increases again, medication can be reintroduced or adjusted before any significant harm occurs.

The answer varies by patient. Some people are able to reduce the number of drops they use, and others may stop drops entirely after a combined procedure. A smaller group continues to need a similar regimen as before. Results depend on glaucoma severity and how well the eye responds. A specialist will evaluate pressure at each visit and adjust medications one step at a time. Making changes independently, without a current pressure measurement, is not recommended.

Recovery after a combined MIGS and cataract surgery is generally very similar to recovery from cataract surgery alone. Most MIGS steps add only a few minutes to the procedure and require no additional incisions. Drop schedules and activity restrictions are comparable. Some patients notice mild blurring for a short period if fluid or a small device temporarily affects the visual field, but this typically resolves quickly without any additional intervention.

The best candidates for combined surgery tend to be those with mild to moderate open-angle glaucoma who are already scheduled for cataract removal and who would benefit from better pressure control or fewer daily medications. A full evaluation, including optic nerve imaging and pressure history, helps guide this decision. A specialist will review all findings and discuss the options clearly before recommending any surgical plan.