shadow test


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retinoscopy

 [ret″ĭ-nos´kah-pe]
an objective method of investigating, diagnosing, and evaluating refractive errors of the eye, by projection of a beam of light into the eye and observation of the movement of the illuminated area on the retinal surface and of the refraction by the eye of the emergent rays. Called also pupilloscopy and shadow test.
book retinoscopy a type in which the patient focuses on reading a book; commonly used with children.
dynamic retinoscopy a type in which the patient fixes the gaze on a target at a near distance; accommodation is active.
mem retinoscopy a type of dynamic retinoscopy in which the fixation target is a series of letters on the retinoscope, or a card with letters at a normal reading distance.
Nott retinoscopy a type of dynamic retinoscopy in which the fixation target is 40 cm from the eye; the test is first done with the object farther away than the target distance, and then continued while moving it towards the patient until neutrality is observed.
static retinoscopy a type in which the patient fixes the gaze on a target at a long distance in order to relax accommodation.

ret·i·nos·co·py

(ret'i-nos'kŏ-pē),
A method of determining errors of refraction by illuminating the retina and observing the rays of light emerging from the eye.
[retino- + G. skopeō, to view]

shadow test

ret·i·nos·co·py

(ret'i-nos'kŏ-pē)
A method of determining errors of refraction by illuminating the retina and observing the rays of light emerging from the eye.
Synonym(s): shadow test, skiascopy.
[retino- + G. skopeō, to view]

shadow test

References in periodicals archive ?
In the shadow test approach (STA) one criterion is optimized and bounds are defined for all the others.
Gatland yesterday named Warburton in his starting line-up for the clash with New South Wales Waratahs tomorrow, with seven other Welshmen, but denied it was a shadow Test XV.
Lions coach Clive Woodward is expected to select a shadow Test side for the clash with Wellington at the Westpac Stadium on Wednesday.
Wyatt will line up alongside Lewis at Myreside tomorrow as part of a shadow Test side with hopes of still winning their own championship following their opening 19-19 draw with England.
After batting all day against Australia's shadow Test team, Atherton found it hard to conceal his anger over being left out of the squad for the triangular one-day series with the Aussies and Sri Lanka.
Ireland have picked a shadow Test side to face Western Province at Newlands, Cape Town tomorrow.
Gatland has gone to great lengths all week to underline that this is not a shadow Test side, that places will be up for grabs after today regardless.
Gatland, who named seven Welshmen in his line-up, denied it was a shadow Test XV and emphasised the need for his captain to shine.
GARY PARKER last night urged Scotland's top amateurs to use the first-ever shadow Test as a stepping stone to the rugby big-time.
The weighted deviation model and the Shadow Test approach can be more generally applied.
Russell's promotion to the senior ranks means Steve Scott will start as hooker for Scotland A in the shadow Test at Blois on Saturday, with his Edinburgh Reivers clubmate Peter Robertson taking his place on the bench.
They're shouting about their shadow Test team being seeded No 2 in the world rankings