When you enter a darkened room (e.g., a movie theater), you will find it hard to see at first, but shortly afterward you will be able to see much better. This phenomenon is referred to as ________ adaptation.

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Dark adaptation is the process by which the eyes adapt to low levels of illumination in order to see better in dim light. It takes a few minutes for the eyes to adjust to the darkness and begin to increase their sensitivity to light. This is why, in a darkened room, it may be difficult to see at first but gradually becomes easier over time. Color and cone adaptation refer to different processes related to color perception, while light adaptation is the opposite of dark adaptation and refers to the process by which the eyes adjust to brighter levels of illumination.

When You Enter a Darkened Room (E