Hemeralopia, also known as night blindness, is a visual disorder in which the affected person is unable to see clearly in low light conditions. There are several synonyms for this term, including nyctalopia, night visual impairment, and nocturnal amblyopia. While the severity of hemeralopia may vary from person to person, it can be a challenging condition to manage and can greatly impact daily activities such as driving and reading. Treatment options may include making environmental adjustments, wearing corrective lenses, or addressing any underlying health conditions that may be contributing to the condition.