Which of the following factors contributes to lens comfort for the wearer?

Lens tinting significantly contributes to lens comfort for the wearer. The primary purpose of lens tinting is to reduce glare from bright light sources and enhance visual clarity, which can greatly improve overall comfort, especially in bright conditions or when engaging in outdoor activities. Tinted lenses can also provide certain benefits depending on the color and intensity of the tint, such as increasing contrast and depth perception in specific environments.

Ultimately, when lenses are appropriately tinted, they can alleviate eye strain and fatigue, leading to a more comfortable wearing experience. Other factors, although they may affect aesthetic preferences or fit, do not directly enhance the comfort related to visual clarity or glare reduction in the same way that lens tinting does.