Weakness or fatigue of the eyes, usually accompanied by headache and dimming of vision. adj. asthenopic.
A term generally used to designate any subjective symptoms or distress arising from use of the eyes—eyestrain.
A sense of weakness in the eyes, coming on when they are used. As a rule it is due to long-sightedness, slight inflammation, or weakness of the muscles that move the eyes.
Weakness or tiring of the eyes accompanied by pain, headache, and dimness of vision. Symptoms include pain in or around the eyes; headache, usually aggravated by use of the eyes for close work; fatigue; vertigo; and reflex symptoms such as nausea, twitching of facial muscles, or migraine.
Diminished strength in the eye muscles or reduced visual ability.