What does TVA stand for in the context of glare testing?

In the context of glare testing, TVA stands for Threshold Visual Acuity. This term refers to the minimum level of visual acuity that a person can achieve under conditions that involve glare. The importance of measuring threshold visual acuity lies in its relevance to understanding how glare affects an individual's vision in real-world situations.

When glare is present, it can significantly interfere with visual performance, making it crucial to know the lowest level of clarity a patient can achieve. This is particularly important for individuals driving at night or in bright environments where glare may pose safety concerns. By assessing threshold visual acuity, healthcare professionals can quantify how much glare impacts a patient's ability to see clearly and can make informed decisions about potential interventions or treatments.