Introduction: It is still not exactly known how strabismic patients perceive the surrounding world. It is commonly believed that patients with early onset convergent strabismus and microstrabismus do not suffer from diplopia because of two mechanisms: suppression and anomalous retinal correspondence (ARC). Suppression only occurs under binocular viewing conditions and concerns the central part of the visual field of the strabismic eye. Suppression is associated with a decrease of binocular functions in the central part of the visual field. ARC can be described as a form of internal squint that corrects for the image disparity due to external squint. It is the defence mechanism against diplopia in the more peripheral visual field. There is evidence however that this shift in retinal localisation does not affect the visual field equally. It seems that ARC is more outspoken in the periphery than in the centre of the visual field. This might be explained by the fact that in early childhood the receptive fields are larger in the periphery than in the centre and that during constriction of the receptive fields in the period of early development, suppression is first needed in the centre of the visual field, permitting ARC to develop in the retinal periphery. ...
Strabismus (London)
Abstracts Wiesbadener Tagung des EVA, Wiesbaden, November 1992
Department of Ophthalmology

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