منابع مشابه
Convergence Insufficiency
Types of Convergence (1) Voluntary Convergence – Amount of Convergence of visual axes that can be produced at will (2) Reflex convergence Convergence of visual axes which is not under complete voluntary control and it has four components – a. Tonic convergence – Due to inherent innervational tone of extra ocular muscles. b. Fusional convergence -The convergence that is produced to ensure that s...
متن کاملConvergence insufficiency-a major review.
Convergence insufficiency is a common binocular vision disorder affecting approximately 5% of the population in the United States. It is often associated with a host of symptoms that occur when doing near work, such as reading and computer viewing. This article reviews the existing literature on convergence insufficiency including etiology, diagnosis, sensorimotor findings, and management.
متن کاملEye strain from convergence insufficiency.
Eye strain and headache are common ocular symptoms, and the main cause in persons aged 15 to 40 is convergence insufficiency. It is more common in females than in males. Many patients are supplied with glasses for eye strain without the causative convergence insufficiency being treated. The treatment in most cases is orthoptic exercises.
متن کاملConvergence Insufficiency/Divergence Insufficiency Convergence Excess/Divergence Excess: Some Facts and Fictions
Great discrepancies are often encountered between the distance fixation and the near-fixation esodeviations and exodeviations. They are all attributed to either anomalies of the AC/A ratio or anomalies of the fusional convergence or divergence amplitudes. We report a case with pseudoconvergence insufficiency and another one with pseudoaccommodative convergence excess. In both cases, conv./div. ...
متن کاملNon-surgical interventions for convergence insufficiency.
BACKGROUND Convergence insufficiency is a common eye muscle co-ordination problem in which the eyes have a strong tendency to drift outward (exophoria) when reading or doing close work. Symptoms may include eye strain, headaches, double vision, print moving on the page, frequent loss of place when reading, inability to concentrate, and short attention span. OBJECTIVES To systematically assess...
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ژورنال
عنوان ژورنال: Jurnal Kesehatan Andalas
سال: 2018
ISSN: 2615-1138,2301-7406
DOI: 10.25077/jka.v7i0.855