What does glare refer to in optics?

Glare in optics refers specifically to a harsh light that interferes with vision. This phenomenon occurs when brightness levels are excessively high, which can cause discomfort and reduce visibility. Glare can be produced by various light sources, such as the sun, headlights, or artificial lights, and it affects how well a person can see their environment or specific objects.

Understanding glare is crucial in the context of optical health, as it can impact daily activities and tasks. It is often a primary consideration when fitting lenses for eyewear, as certain lens coatings or designs can help mitigate the effects of glare, thus enhancing visual comfort for the wearer. Knowing this distinction helps in identifying potential problems and providing solutions to customers seeking relief from visually disruptive lights.