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In studies that used standardized definitions of convergence insufficiency, investigators have reported a prevalence of 4.2–6% in school and clinic settings. The standard definition of convergence insufficiency is exophoria greater at near than at distance, a receded near point of convergence, and reduced convergence amplitudes at near. [4]
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 following is a list of albums, EPs, and mixtapes released in 2009.These albums are (1) original, i.e. excluding reissues, remasters, and compilations of previously released recordings, and (2) notable, defined as having received significant coverage from reliable sources independent of the subject.
This x-intercept is also referred to as aligning prism or – in earlier times – as associated phoria when the subjective nonius method was used (sP 0) the slope of the curve near zero prism load; Fig. 3: Fixation disparity as a function of the forced vergence angle which is induced by base-in prisms and base-out prisms in front of the eyes.
August 29, 2017 [7] 978-1-7183-5501-9. Prologue: The Emotions of the Dead. Chapter One: A Morning in Gideon. Chapter Two: Back-Alley Cliché. Chapter Three: A Maiden's Master. Chapter Four: The Two Leaders. Chapter Five: Revenant Ox-Horse. Chapter Six: Beyond the Radix Point.
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 ...
Maddox wing. The Maddox Wing is an instrument utilized by ophthalmologists, orthoptists and optometrists in the measurement of strabismus (misalignment of the eyes; commonly referred to as a squint or lazy eye by the lay person). It is a quantitative and subjective method of measuring the size of a strabismic deviation by dissociation of the ...
"Blue Jay Way" is a song by the English rock band the Beatles. Written by George Harrison, it was released in 1967 on the group's Magical Mystery Tour EP and album. The song was named after a street in the Hollywood Hills of Los Angeles where Harrison stayed in August 1967, shortly before visiting the Haight-Ashbury district of San Francisco.