How many controlled degrees of light does the BAT test deliver?

The Brightness Acuity Test (BAT) is designed to evaluate a patient's vision under varying light conditions, simulating real-world scenarios where lighting can affect visual performance. The BAT delivers three controlled degrees of light, which allows for an assessment of how visual clarity and contrast sensitivity can change with different illumination levels.

By offering these three distinct light settings, the test provides crucial insights into how a patient may perform in various lighting situations, helping to diagnose issues such as glare sensitivity or conditions that may alter visual perception. This makes the information gained from the test particularly useful for ophthalmologists when considering treatment plans or further evaluations.