What is the best method to verify treatment efficacy for open-angle glaucoma?

The best method to verify treatment efficacy for open-angle glaucoma involves the use of tonometry. Tonometry measures the intraocular pressure (IOP) within the eye, which is crucial in managing glaucoma. The primary goal of treating open-angle glaucoma is to lower the IOP, and tonometry provides quantifiable data on how successful the treatment has been in achieving this objective.

Continuous monitoring of IOP is essential, as elevated pressure is a significant risk factor for optic nerve damage and subsequent vision loss in glaucoma patients. Therefore, by regularly assessing IOP through tonometry, healthcare providers can determine if the treatment plan is effectively managing the patient's condition.

Other methods like visual field testing and optic nerve imaging are important in the overall assessment of glaucoma and monitoring disease progression, but they are not as directly related to verifying treatment efficacy as tonometry. Visual field testing evaluates the functional vision and progression of the disease, while optic nerve imaging assesses structural changes. Pupil reflex testing, while important for various neurological assessments, does not provide relevant information regarding the management of intraocular pressure or treatment responses in glaucoma.