How is glare testing commonly performed?

Glare testing is an important aspect of evaluating a patient's visual performance and is often performed to measure how well a person's vision is affected by bright light sources. The use of high-intensity LED lights and screens in glare testing is effective because these sources provide intense illumination that can simulate real-world scenarios where glare is a factor, such as driving at night or being outdoors on a sunny day.

High-intensity LED lights offer the ability to create controlled glare conditions, which can allow for precise evaluation of visual impairment associated with glare. The responses of patients to varying degrees of glare can help determine the extent of any visual disturbances they may experience, particularly in the presence of bright lights.

In contrast, other methods like using a standard light source may not produce the required intensity for accurate measurement of glare sensitivity. Visual field charts are typically used for assessing peripheral vision rather than for testing glare. Handheld devices might not provide the consistent and adjustable light sources necessary for effective glare assessment. Therefore, the utilization of high-intensity LED lights and screens aligns with the best practices for glare testing, making it the appropriate choice.