Convergence Insufficiency - Perception Error: A Review Article

Abstract

Ocular asthenopia associated with headaches and visual discomfort are the major complaints, clients have these days. Intensive near and digital works have brought many non-strabismic binocular vision disorders (NSBVD) in the clients. Convergence insufficiency (CI) is one of the most prevalent NSBVD. CI is a binocular vision dysfunction, characterized by the patient’s inability to accurately converge, or sustain accurate convergence when focusing on near objects. Apart from visual symptoms, CI is known to have effects on a children’s academics and a person’s daily life. In addition to visual discomfort, children with CI report symptoms affecting reading performance, such as loss of pace, loss of concentration, reading slowly, and trouble remembering what was read. Proper diagnosis of convergence insufficiency is simple, but it has been complicated by the unavailability of essential orthoptic tools; the attitude of practitioner and their knowledge adds to the hurdle. Why don’t we introduce term “CI Suspect” like “Glaucoma-Suspect” so that every individual if matches one or more criteria for CI diagnosis is subjected undergo a complete binocular single vision assessment? This will properly diagnose and manage the case and also make orthoptics as a proper sub-specialty for eye care practitioners.