relative accommodation


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rel·a·tive ac·com·mo·da·tion

quantity of accommodation required for single binocular vision for any specified distance, or for any particular degree of convergence.

rel·a·tive ac·com·mo·da·tion

(rel'ă-tiv ă-kom'ŏ-dā'shŭn)
Quantity of accommodation required for single binocular vision for any specified distance, or for any particular degree of convergence.

relative accommodation

The extent to which accommodation is possible for any specific state of convergence of the eyes.
See also: accommodation
References in periodicals archive ?
Abbreviations: AA = amplitude of accommodation, AE = accommodative excess, AI = accommodative insufficiency, AS/R = accommodative stimulus/response, CISS = Convergence Insufficiency Symptom Survey, cpm = cycles per minute, D = diopter, DoD = Department of Defense, FEF = frontal eye field, MRI = magnetic resonance imaging, mTBI = mild traumatic brain injury, NPA = near point of accommodation, NRA = negative relative accommodation, OD = right eye, OMT = oculomotor training, OS = left eye, P = placebo, pons = pontis, PRA = positive relative accommodation, SEM = standard error of mean, SD = standard deviation, SS = steady-state, SUNY = State University of New York, TBI = traumatic brain injury, VSAT = Visual Search and Attention Test.
This accommodative insufficiency was based on the following diagnostic criteria: the patient was under 35 years of age and complained of blur at near that was reduced with the addition of plus lenses; furthermore, the insufficiency was confirmed with the measurement of a reduced accommodative amplitude and/or positive relative accommodation (PRA) [12].
Static parameters included push-up and minus-lens accommodative amplitude, relative accommodative ranges (PRA/negative relative accommodation [NRA]), accommodative stimulus/response (AS/R) function, AC/A ratio, near heterophoria, and tonic accommodation (see Appendix for ophthalmic glossary, available online only).