Predicting Success After Angle Surgery
Angle-based minimally invasive glaucoma surgery (MIGS) has become an increasingly important option for patients with open-angle glaucoma. As these procedures are adopted more widely and often earlier in the disease course, the challenge for clinicians is identifying the patients most likely to benefit from angle surgery. Several clinical features are consistently associated with more favorable outcomes, and can help frame preoperative counseling and guide procedure selection.
By
Si Jia Chen, BS
Arsham Sheybani, MD
September 1, 2026
Clinical Scorecard: Predicting Success After Angle Surgery
At a Glance
Category Detail
Condition Open-Angle Glaucoma Key Mechanisms Angle-based minimally invasive glaucoma surgery (MIGS) targeting the trabecular meshwork. Target Population Patients with open-angle glaucoma, particularly those with MYOC-associated juvenile open-angle glaucoma. Care Setting Clinical practice involving glaucoma surgery.
Key Highlights
Higher baseline IOP is associated with greater surgical success but also higher risk of reoperation. Lower medication burden may correlate with better outcomes post-surgery. Earlier-stage glaucoma is linked to improved surgical results. Combined MIGS with phacoemulsification shows more favorable outcomes than standalone MIGS. Prior selective laser trabeculoplasty (SLT) may indicate treatment-resistant disease. Guideline-Based Recommendations
Diagnosis
Evaluate baseline IOP and medication burden. Consider disease stage and prior treatments when assessing candidates for angle surgery. Management
Counsel patients on the potential outcomes based on baseline characteristics and surgical approach. Monitoring & Follow-up
Regular follow-up to assess IOP and need for further interventions post-surgery. Risks
Higher baseline IOP may indicate a greater risk of reoperation. Prior SLT may suggest a more challenging surgical outcome. Patient & Prescribing Data
Patients with varying stages of open-angle glaucoma, including those with MYOC mutations and pseudoexfoliation glaucoma.
Genetic testing is an emerging tool but not yet a validated predictor of surgical success.
Clinical Best Practices
Use genetic testing cautiously as a precision medicine tool. Differentiate between MIGS performed alone and those combined with cataract surgery for better patient counseling. Monitor for postoperative IOP spikes, especially in patients with pseudoexfoliation glaucoma. Related Resources & Content
