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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 ...
The Maddox rod test can be used to subjectively detect and measure a latent, manifest, horizontal or vertical strabismus for near and distance. The test is based on the principle of diplopic projection. [1] Dissociation of the deviation is brought about by presenting a red line image to one eye and a white light to the other, while prisms are ...
AC 1/4: Grade 1 anterior chamber angle: AC 0/4: Grade 0 anterior chamber angle: closed angle between cornea and iris AC/A: Accommodative convergence / Accommodation ratio the portion of the range of convergence that occurs in response to accommodation: Acc: Accommodation: process of changing optical power to maintain focus as distance changes ...
The U.S. Supreme Court said Monday that it will hear arguments on the constitutionality of state bans on gender-affirming care for transgender minors. Gender-affirming care includes a range of ...
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]
June 24, 2024 at 7:14 AM. (Reuters) - G1 Therapeutics said on Monday its drug for a rare, aggressive form of breast cancer did not meet the main goal of overall survival in a late-stage trial. G1 ...
The study, which pulled from the medical data of 1,651,452 patients across 13 years, compared those with type 2 diabetes who had been prescribed a GLP-1, insulin, or metformin.
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 .