orthophoria

orthophoria

 [or″tho-fo´re-ah]
normal equilibrium of the eye muscles, or muscular balance. adj., adj orthophor´ic.

or·tho·phor·i·a

(ōr'thō-fōr'ē-ă),
Absence of heterophoria; the condition of binocular fixation in which the lines of sight meet at a distant or near point of reference in the absence of a fusion stimulus.
[ortho- + G. phora, motion]

orthophoria

/or·tho·pho·ria/ (-for´e-ah) normal equilibrium of the eye muscles, or muscular balance.orthophor´ic

or·tho·pho·ri·a

(ōr'thō-fōr'ē-ă)
Absence of heterophoria; the condition of binocular fixation in which the lines of sight meet at a distant or near point of reference in the absence of a fusion stimulus.
[ortho- + G. phora, motion]

orthophoria

A state of perfect alignment of the two eyes even when they are deprived of the assistance of the binocular reflexes that maintain alignment. In orthophoria, the eyes remain in alignment even when one is covered. See also ESOPHORIA and EXOPHORIA.

orthophoria 

The case when the two visual axes are directed towards the point of binocular fixation, in the absence of an adequate stimulus to fusion. It represents a perfect balance of the oculomotor system; and the active and passive positions coincide, unlike in heterophoria. Syn. phoria. See orthophorization; active position; passive position.

orthophoria

normal equilibrium of the eye muscles, or muscular balance.
References in periodicals archive ?
AC/A = accommodative convergence-to-accommodation, eso = esophoria, exo = exophoria, Hyper = hyperphoria, NA = not applicable, NRA = negative relative accommodation, Ortho = orthophoria, PD = prism diopter, PRA = positive relative accommodation, SD = standard deviation, SEM = standard error of the mean.