Accommodative Excess
Accommodative excess, also known as accommodative spasm, is a condition in which the eyes focus too strongly or have difficulty relaxing focus after near work. Accommodation is the mechanism that allows the eyes to maintain clear vision when looking at close objects. In accommodative excess, the focusing system becomes overactive, leading to visual discomfort and fluctuating vision.
Common symptoms include headaches, blurred distance vision after reading, eye strain, difficulty shifting focus between near and far, reduced concentration, and fatigue during prolonged close work. Many patients also report intermittent blur when using computers, tablets, or smartphones for extended periods. Children may struggle with schoolwork or complain that words appear blurry whilst reading.
The condition is often associated with excessive near tasks, prolonged digital device use, stress, anxiety, or uncorrected vision problems such as hyperopia. Diagnosis involves a comprehensive eye examination assessing accommodative function, binocular vision, and focusing flexibility.
Treatment aims to relax the focusing system and improve visual comfort. Management may include prescription glasses, anti-fatigue or low plus lenses for near work, vision therapy, and advice regarding visual hygiene. Early treatment can significantly improve comfort, concentration, and visual performance.