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WorksheetsColor Vision and Eye Function Quiz
Total questions: 20
Worksheet time: 10mins
Which theory explains trichromatic color vision?
Young-Helmholtz theory
Opponent process theory
Rod-cone theory
Retinal adaptation theory
Which cells are primarily responsible for color vision?
Rods
Cones
Bipolar cells
Ganglion cells
What type of vision is mediated by rods?
Color vision
Sharp vision
Dim light vision
Central vision
What is the most common type of color blindness?
Blue-yellow
Red-green
Total color blindness
Peripheral blindness
What is the test used to detect color blindness?
Snellen chart
Ishihara chart
Jaeger chart
Visual evoked potential
Which vitamin deficiency causes night blindness?
Vitamin A
Vitamin D
Vitamin E
Vitamin K
Photopic vision is mediated by:
Rods
Cones
Retinal pigment epithelium
Ganglion cells
Which statement is true about rods?
Active in bright light
Responsible for color vision
High acuity
High sensitivity to light
Scotopic vision refers to:
Daylight vision
Dim light vision
Color vision
Sharp vision
What causes presbyopia?
Defective rods
Short eyeball
Aging and loss of lens elasticity
Corneal flattening
Near point is defined as:
Closest point clearly seen
Far point of accommodation
Retinal focal length
Axial length of eye
Which structure functions as the auditory receptor?
Tympanic membrane
Organ of Corti
Cochlear duct
Eustachian tube
Which of the following initiates the tympanic reflex?
Sudden low-frequency sounds
Sudden loud sounds
Prolonged silence
Low ambient noise
Which part of the ear contains the Organ of Corti?
Utricle
Saccule
Cochlear duct
Semicircular canal
Function of iris is to:
Focus light
Detect light
Regulate amount of light
Protect retina
Which is not an error of refraction?
Myopia
Hypermetropia
Presbyopia
Glaucoma
Astigmatism is caused due to:
Change in lens curvature
Irregular corneal surface
Vitreous body defects
Retinal degeneration
Which reflex constricts the pupil in response to light?
Accommodative reflex
Ciliospinal reflex
Pupillary light reflex
Jaw jerk reflex
Dark adaptation improves:
Central vision
Color perception
Night vision
Refraction
Which cells initiate electrical events in retina?
Rods and cones
Bipolar cells
Ganglion cells
Amacrine cells
