The far point of convergence is a term used in ophthalmology to describe the furthest distance at which the eyes can converge while still maintaining focus. In IPA phonetic transcription, this term would be represented as /fɑr pɔɪnt əv kənˈvɜrdʒəns/. The spelling of this word follows standard English conventions for the pronunciation of each individual sound. Remembering the correct spelling of complex terms such as this involves breaking down each component into easily recognizable sounds or phonemes.
The far point of convergence is a term used in optometry and ophthalmology to describe the distance at which both eyes are directed and focused such that the image of an object falls precisely on corresponding points of each retina. It represents the maximum distance at which the eyes can comfortably converge while maintaining single, binocular vision.
Convergence refers to the inward movement of both eyes that occurs when focusing on a near object. When an object is brought closer to the eyes, the muscles controlling eye movement adjust to direct the gaze towards the object. The far point of convergence, therefore, represents the farthest distance at which the eyes can converge and focus without causing strain or discomfort.
The measurement of the far point of convergence plays a significant role in evaluating binocular vision and depth perception. Optometrists and ophthalmologists often assess this measurement to detect any abnormalities or deviations that may indicate problems such as convergence insufficiency or strabismus.
Understanding the far point of convergence is important for the prescription of corrective lenses or vision therapy, as it helps determine the appropriate lens power or exercises required to improve binocular vision. By assessing and managing the far point of convergence, eye care professionals can assist individuals in maintaining optimal visual comfort and clarity during near tasks while ensuring the accurate alignment of their eyes.
The point to which the visual lines are directed when c. is at rest.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.