Many people are surprised to learn that cataracts and glaucoma often travel together. Both become more common with age, and it is not unusual to already be managing glaucoma drops when the time comes to consider cataract surgery. The encouraging news is that these two conditions can often be addressed in a single procedure. Using a technique called minimally invasive glaucoma surgery, or MIGS, your surgeon can place a tiny stent to help lower eye pressure at the same time your cataract is removed. This guide explains how the combined approach works, who tends to benefit, and what to expect.
Cataracts form when the eye's natural lens gradually clouds, usually as a normal part of aging. Glaucoma is a separate condition in which pressure inside the eye slowly damages the optic nerve. Our glaucoma treatment program in West Chester explains how that pressure is measured, monitored, and lowered over time. Because both conditions are age related, many patients live with both at once. Cataract surgery is already one of the most common and carefully studied procedures in all of medicine, which makes it a natural moment to also address elevated eye pressure while the eye is being treated.
There is also a practical overlap. The eye's drainage system sits right next to where the cataract is removed. That anatomy is what makes it possible to treat both problems through the same small opening, in one sitting, rather than scheduling two operations.
In a healthy eye, fluid drains out through a structure called the trabecular meshwork. In open-angle glaucoma, that drainage pathway becomes less efficient and pressure builds. Minimally invasive glaucoma surgery is a family of procedures designed to improve this natural outflow using very small devices and minimal disruption to the eye.
The iStent inject W is one of the most widely used of these devices. Each stent is made of heparin-coated titanium and measures only a few hundred microns, making it among the smallest implants placed anywhere in the human body. Working through the same incision used for cataract surgery, Dr. Mudgil places two stents into the trabecular meshwork to create new bypass channels. Fluid can then drain more freely, which helps lower pressure inside the eye. The stents stay in place permanently and are neither visible nor felt.
The experience is very similar to cataract surgery on its own. After the clouded lens is removed and a new intraocular lens is placed, the surgeon uses the existing incision to position the stents. This typically adds only a few minutes to the operation. There is no separate surgery to schedule and no additional incision, and recovery generally follows the same gentle timeline as a standard cataract procedure.
Combined cataract and MIGS surgery is generally intended for adults who have a visually significant cataract along with mild to moderate open-angle glaucoma. It is not appropriate for every type of glaucoma. Certain forms, such as narrow-angle or some secondary glaucomas, call for a different plan. The only way to know whether this approach fits your eyes is a thorough evaluation.
This is also where teamwork matters. Your optometrist plays an essential role, providing routine eye exams, glasses, and ongoing monitoring of your eye pressure and optic nerve. When surgery is being considered, Dr. Mudgil, a board-certified cataract surgeon, performs the consultation and the surgery, and your follow-up visits are with our optometrist, or with your own optometrist if we are co-managing your care. This shared model keeps your everyday care close to home while bringing surgical expertise in when it is needed.
It helps to be clear about goals. Cataract surgery restores clarity by replacing the clouded lens, and depending on the lens you and your surgeon choose, many patients reduce their dependence on glasses for certain tasks. Results vary from person to person. The MIGS stent is aimed at lowering eye pressure and, for many people, reducing reliance on daily drops. Glaucoma cannot be cured, and no procedure reverses damage that has already occurred. The purpose of treatment is to slow the progression of the disease and protect the vision you have, which is why ongoing monitoring remains important even after a successful surgery.
Sometimes, yes. Removing the natural lens frees up space inside the eye, and that alone can modestly reduce pressure. The effect is not guaranteed and is usually smaller than what a combined procedure achieves. Your surgeon will weigh whether cataract surgery on its own is likely to be enough for your eyes, or whether adding a stent is the better path.
Some patients are able to reduce the number of drops they use, and a few may come off drops entirely, though this is not guaranteed. Many people continue some drop therapy. Your surgeon and optometrist will monitor your pressure and adjust your regimen based on how your eyes respond.
That depends on the lens you choose and the health of the rest of your eye. Many patients reduce their dependence on glasses for certain tasks, though results vary from person to person, and glaucoma can affect the final vision outcome. Your surgeon will set realistic expectations for your specific eyes at the consultation.
No. Some patients choose cataract surgery alone and continue managing glaucoma with drops or a separate procedure. Combining the two is worth discussing because it addresses both concerns with a single recovery, but the sequence is a personal decision you make with your surgeon.
For most patients, recovery feels very similar to cataract surgery alone. The stent placement adds only a few minutes and no separate incision, so the healing timeline is generally the same. Your care team will review specific instructions with you.
The stents are designed to remain in place permanently. They are made of biocompatible titanium, are far too small to see or feel, and are compatible with MRI scanning. They work quietly in the background to support your eye's natural drainage.
MIGS is only one of several tools. If a stent is not right for your type of glaucoma, other options such as medicated drops, laser treatment, or other surgical approaches may be recommended. More advanced glaucoma may call for a procedure that lowers pressure more substantially than a typical MIGS device provides. The goal in every case is to keep your eye pressure controlled and slow the progression of the disease.
If you are living with both cataracts and glaucoma, a combined approach may let you address both in a single procedure. The right plan depends on the details of your eyes, and the best next step is a conversation. To learn more about our premium lens options and how we care for patients with glaucoma, Schedule a consultation or call our office at (610) 429-3004.
Medically reviewed by A. Vijay Mudgil, MD, board-certified ophthalmologist.
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