Glaucoma often causes no pain, no obvious blur, and no warning that peripheral vision is being affected. That is why the best treatments for glaucoma are not defined by one procedure or one eye drop. The right treatment is the one that safely lowers pressure inside your eye enough to protect the optic nerve over time – while fitting the specific type of glaucoma you have and your ability to maintain follow-up care.
Vision lost from glaucoma generally cannot be restored. However, early diagnosis and consistent treatment can substantially reduce the risk of further vision loss. A specialist examination, including pressure measurement, optic nerve assessment, imaging, and visual field testing, gives your ophthalmologist the information needed to recommend a personalized plan.
Best Treatments for Glaucoma Start With a Target Pressure
Glaucoma damages the optic nerve, most commonly when pressure inside the eye is higher than that nerve can tolerate. Some people develop damage even with eye pressure in the statistically normal range, a condition often called normal-tension glaucoma. Others have high pressure without visible nerve damage and may be monitored or treated to reduce future risk.
For this reason, treatment is built around a target eye pressure rather than a single “normal” number. That target depends on the degree of existing damage, the appearance of the optic nerve, pressure readings over time, corneal thickness, age, family history, and the rate at which changes occur on testing.
A patient with early, stable glaucoma may need a modest pressure reduction. Someone with advanced glaucoma or evidence of progression may require a lower target and more intensive treatment. Regular monitoring matters because glaucoma management is not a one-time decision.
Prescription Eye Drops
For many patients, prescription drops are the first treatment used to lower eye pressure. Different medications reduce fluid production in the eye, improve drainage, or do both. Prostaglandin analogs are commonly prescribed once daily, while other categories may be added when additional pressure control is needed.
Drops can be highly effective, but their success depends on using them exactly as directed. Missing doses, stopping because the eye feels fine, or using an incorrect technique can allow pressure to rise without any noticeable symptoms.
Side effects also matter. Depending on the medication, patients may experience redness, stinging, dry eye symptoms, eyelid changes, darker iris color, slower heart rate, fatigue, or breathing concerns. A medication that works well on paper is not always the best long-term choice for every patient. Tell your ophthalmologist about asthma, heart conditions, allergies, pregnancy considerations, and all medications you take.
If drops are prescribed, ask your care team to demonstrate how to instill them. Closing the eye gently and pressing at the inner corner near the nose for a minute can help reduce systemic absorption. If you use more than one type, waiting several minutes between drops helps prevent one medication from washing out the other.
Selective Laser Trabeculoplasty (SLT)
Selective laser trabeculoplasty, or SLT, is a widely used office-based laser treatment for open-angle glaucoma and ocular hypertension. It applies low-energy laser pulses to the eye’s drainage tissue, encouraging better fluid outflow and lowering eye pressure.
SLT can be an excellent option for patients who want to reduce their reliance on daily drops, have difficulty maintaining a drop routine, or need additional pressure lowering despite medication. In suitable patients, it may be considered as an initial treatment rather than waiting until multiple drops have been tried.
The procedure is typically quick. Numbing drops are used, and most patients return to normal activities shortly afterward. Pressure may rise temporarily after treatment, so follow-up checks are essential. The pressure-lowering effect can wear off over time, and the procedure may sometimes be repeated. SLT does not cure glaucoma, but it can be a valuable part of long-term control.
Laser Peripheral Iridotomy for Narrow Angles
Not all glaucoma is open-angle glaucoma. In narrow-angle glaucoma, the drainage angle between the iris and cornea is crowded or blocked, creating a risk of sudden and dangerous pressure elevation. Acute angle closure can cause severe eye pain, headache, nausea, halos around lights, and blurred vision. This is an emergency requiring immediate assessment.
Laser peripheral iridotomy creates a very small opening in the iris to help fluid move more freely and reduce the risk of angle closure. It is often recommended for eyes with narrow angles before an acute attack occurs. In some cases, lens changes related to cataracts contribute to angle narrowing, and cataract surgery may also improve the anatomy of the drainage angle.
MIGS: Less Invasive Glaucoma Surgery
Minimally invasive glaucoma surgery, often called MIGS, includes several procedures designed to lower eye pressure with less tissue disruption than traditional glaucoma surgery. Many MIGS procedures are performed at the time of cataract surgery, although certain options may be appropriate on their own.
These procedures can improve drainage through the eye’s natural outflow pathways or reduce fluid production. They may help lower the number of drops a patient needs and can provide meaningful pressure reduction for mild to moderate glaucoma. Their main trade-off is that they may not lower pressure enough for patients with advanced disease or a very low target pressure.
For adults over 50 who have both a visually significant cataract and glaucoma, cataract surgery may be part of a broader glaucoma plan. An ophthalmologist can determine whether cataract surgery alone, cataract surgery combined with MIGS, or a different approach offers the best balance of vision improvement and pressure control.
Traditional Glaucoma Surgery for Advanced Disease
When glaucoma continues to progress despite drops, laser treatment, or less invasive procedures, traditional surgery may be needed to protect remaining vision. Trabeculectomy creates a new drainage pathway under the upper eyelid, while tube shunt surgery uses a small implanted device to direct fluid to a reservoir on the surface of the eye.
These surgeries often achieve lower pressures than MIGS and can be sight-saving for patients with severe or rapidly progressing glaucoma. They also require closer postoperative care. Healing must be carefully monitored, and risks can include infection, bleeding, very low pressure, scarring, inflammation, or the need for further treatment.
The decision is not simply about choosing the strongest procedure. It is about choosing the procedure capable of reaching your target pressure with an acceptable level of risk for your eye and stage of disease.
How to Choose the Right Glaucoma Treatment
The best glaucoma treatment plan considers more than the pressure reading at one appointment. Your ophthalmologist will look at the type and severity of glaucoma, visual field results, optic nerve imaging, how quickly changes have occurred, your cataract status, medication tolerance, and your ability to attend follow-up visits.
A patient with early open-angle glaucoma may do very well with drops or SLT. A patient who struggles with daily medication may prefer laser treatment when clinically appropriate. Someone with advanced nerve damage may need surgery sooner because preserving the vision that remains is the priority.
Do not judge success solely by whether you can feel a difference. Glaucoma treatment is successful when testing shows that pressure is controlled and the optic nerve and visual field remain stable. Keep scheduled appointments even when your vision seems unchanged, and contact your eye care provider promptly for sudden pain, redness, halos, nausea, or a rapid change in vision.
At The Goldberg Centre, glaucoma care is centered on careful assessment, clear treatment choices, and ongoing monitoring designed to protect your vision for the long term. If you have been diagnosed with glaucoma, have a family history, or have been told your eye pressure is high, use the booking link on our website to schedule a consultation. A focused examination can turn uncertainty into a clear, practical plan for protecting the sight you rely on every day.