Search results
Results from the WOW.Com Content Network
For example, Base in (BI), Base out (BO), Base up (BU) or Base down (BD). The angle of the deviation with the units in prism dioptres; Which eye is fixating and which eye is deviating; Whether the test was performed with or without an abnormal head posture; Examples of recording PCT cc (D) 12 p.d BI 6 p.d BU (FL) (N) 18 p.d BI 6 p.d BU (FL) or
Exophoria. Exophoria is a form of heterophoria in which there is a tendency of the eyes to deviate outward. [1] During examination, when the eyes are dissociated, the visual axes will appear to diverge away from one another. [2] The axis deviation in exophoria is usually mild compared with that of exotropia .
Fixation disparity. Fixation disparity is a tendency of the eyes to drift in the direction of the heterophoria. While the heterophoria refers to a fusion-free vergence state, the fixation disparity refers to a small misalignment of the visual axes when both eyes are open in an observer with normal fusion and binocular vision. [1]
NASA accidentally broadcast a simulation of astronauts being treated for decompression sickness on the International Space Station (ISS) on Wednesday, prompting speculation of an emergency in ...
LifeWise staff and volunteers either bus or drive students from school to the program sites, or use spaces near schools and supervise children walking there. ... said 64% of its 345 elementary ...
The prism fusion range ( PFR) or fusional vergence amplitude is a clinical eye test performed by orthoptists, optometrists, and ophthalmologists to assess motor fusion, specifically the extent to which a patient can maintain binocular single vision ( BSV) in the presence of increasing vergence demands. Motor fusion is largely accounted to ...
Recent high school graduate Suborno Isaac Bari, 12, plans to start studying math and physics at New York University in the fall, but he’s already got his ambitious sights set on beginning a ...
The strength of the prism is increased until the streak of the light passes through the centre of the prism, as the strength of the prism indicates the amount of deviation present. The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens , which refracts light rays so that a point source of light is seen as a ...