1. (noun) inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder

• night blindness
• nyctalopia

2. (noun) recurrent eye inflammation in horses; sometimes resulting in blindness

• mooneye

1. (noun) inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal disorder

• avitaminosis
• hypovitaminosis
• vision defect
• visual defect
• visual disorder
• visual impairment

2. (noun) recurrent eye inflammation in horses; sometimes resulting in blindness

• animal disease