Clinical criteria for vergence accommodation dysfunction

摘要

There is still considerable diversity in the literature on how to name binocular and accommodative anomalies and what clinical criteria constitute normal functioning. Research over the past decade has reaffirmed not only the validity of traditional measurements of the vergence system but also has given the clinician valid and efficient methods for measuring the vergence system in the fused state. This paper sets out a rational system of nomenclature which utilises the concept of adaptability rather than deviation of axis and tabulates contemporary diagnostic criteria.