Visual Acuity and Field of Vision Quiz

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18 Questions

Determination of extent of peripheral visual field and thereby diagnosis of blindness in specific portions of retina, is called ______.

perimetry

Optic disc produces physiological ______ (blind spot) in 15 degrees lateral to central point of vision in perimetry chart.

scotoma

Binocular vision provides detection of ______ and three-dimensional appearance of object in front of eyes.

distance

Field of vision is ______ that is seen by an eye at a given instant.

area

Field of vision has ______ and temporal division.

nasal

Final visual image is formed in ______.

visual cortex

The principle focal distance (Focal length) is the distance between the lens and the ______ point.

focal

Diopters are used to measure the refractive power of a lens in ______.

meters

The human eye has a refractive power of 6 m at ______.

rest

The total refractive power of the eye is about 59 D: - Cornea = 40-45 D - Lens = 15-20 D. The optics of the eye resemble those of a ______.

camera

The image that falls on the retina is real and inverted, as in a ______.

camera

Neural processing restores the upright appearance of the field of ______.

view

The ______ light reflex helps adaptation to changes in light intensity.

pupillary

When light is directed into one eye, the pupil of the other also ______.

constricts

The ______ reflex involves pupillary constriction, contraction of ciliary muscles and convergence of the eyeballs.

accommodation

Visual acuity is sharpest within the ______ region of the retina.

foveal

The ______ chart is used to measure visual acuity.

Snellen

______ vision is the degree to which details and contours of objects are perceived.

Binocular

Test your knowledge on visual acuity, field of vision, and the factors affecting distance vision clarity. Learn about terms such as 20/20 vision and how they are measured. Understand the significance of peripheral visual field in detecting blindness.

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