Quiz about My acts of service and gift giving to you all

Question 1

Outermost layer of the retina is adherent to the what?

Accepted Answer

Choroid

Answer

Optic Nerve

Answer

Optic Tract

Answer

Optic Chiasm

Question 2

the light sensitive chemical in the rods.

Accepted Answer

Rhodopsin

Answer

Color pigments

Answer

Vitamin A

Answer

Scotopsin

Question 3

light sensitive chemicals in the cones.

Accepted Answer

Color Pigments

Answer

Blue-sensitive pigment

Answer

Scotopsin

Answer

Aldehyde

Question 4

How much percent of light sensitive pigment can be found in the Outer Segment of rod projects

Accepted Answer

40%

Answer

50%

Answer

30%

Answer

60%

Question 5

is present in both cytoplasm of the rods, and in the pigment layer of the retina.

Accepted Answer

Vitamin A

Answer

Vitamin B

Answer

Vitamin C

Answer

VItamin K

Question 6

occurs in any person with severe vitamin A deficiency.

Accepted Answer

Night Blindness

Answer

Day Blindness

Answer

Light Blindness

Answer

Astigmatism

Question 7

converts light into an electrical signal and contains sensory pigments. It excites the nerve fibers of the eye

Accepted Answer

Rhodopsin

Answer

Aldehyde

Answer

Scotopsin

Answer

Protein opsin

Question 8

Wavelength of blue sensitive pigment

Accepted Answer

445 nanometers

Answer

505 nanometers

Answer

535 nanometers

Answer

570 nanometers

Question 9

Wavelength of green sensitive Pigment

Accepted Answer

535 nanometers

Answer

445 nanometers

Answer

570 nanometers

Answer

505 nanometers

Question 10

Rods wavelength

Accepted Answer

505 nanometers

Answer

445 nanometers

Answer

535 nanometers

Answer

570 nanometers

Question 11

Wavelength of red cone

Accepted Answer

570 nanometers

Answer

535 nanometers

Answer

505 nanometers

Answer

445 nanometers

Question 12

Receptor potential of the rods by light peaks at

Accepted Answer

0.3 seconds

Answer

0.5 seconds

Answer

1 second

Answer

0.2 seconds

Question 13

Receptor potential in cones peak faster than rods: Monochromats have no cone photopigments and must rely entirely on rods for their vision. Unable to see any colors.

Accepted Answer

All statements are true

Answer

First statement is true: Second statement is false

Answer

No statements are true

Answer

First statement is false: Second statement is true

Question 14

Most common cause for Night Blindness

Accepted Answer

Vitamin A defficiency

Answer

Eye Injury

Answer

Vitamin K defficiency

Answer

High Blood Pressure

Question 15

No single wavelength of light corresponds to what color?

Accepted Answer

White

Answer

Black

Answer

Purple

Answer

Green

Question 16

is the sensation produced by the absence of light

Accepted Answer

Black

Answer

Darkness

Answer

Blindness

Answer

Light Blindness

Question 17

Purity or richness of a color

Accepted Answer

Saturation

Answer

Hue

Answer

Brightness

Question 18

number of photons striking the eye

Accepted Answer

Brightness

Answer

Saturation

Answer

Hue

Question 19

does not absorb visible light, but when it is bonded with 11-retinal to form rhodopsin

Accepted Answer

OPSIN

Answer

RETINAL

Answer

RHODOPSIN

Answer

COLOR PIGMENTS

Question 20

LACKS RED CONES

Accepted Answer

PROTANOPE

Answer

DEUTERANOPE

Answer

TRITANOPES

Question 21

LACKS GREEN CONES

Accepted Answer

DEUTERANOPE

Answer

TRITANOPES

Answer

PROTANOPE

Question 22

LACKS BLUE CONES

Accepted Answer

TRITANOPES

Answer

DEUTERANOPE

Answer

PROTANOPE

Question 23

to the midbrain and base of the forebrain

Accepted Answer

OLD SYSTEM

Answer

NEW SYSTEM

Question 24

direct transmission of visual signals into the visual cortex located in the occipital lobes

Accepted Answer

NEW SYSTEM

Answer

OLD SYSTEM

Question 25

high-frequency oscillatory motions of the eye

Accepted Answer

TREMORS

Answer

SLOW DRIFTS

Answer

MICROSACCADES

Question 26

aka flicks, small magnitude, fast eye movements that interspersed among slow drift

Accepted Answer

MICROSACCADES

Answer

TREMORS

Answer

SLOW DRIFTS

Question 27

Called squint or cross-eye, means lack of fusion of the eyes in one or more of the visual coordinates: horizontal, vertical or rotational

Accepted Answer

Strabismus

Answer

Esotropia

Answer

Exotropia

Answer

Quadrantanopia

Question 28

IN ESOTROPIA WHAT CRANIAL NERVE IS DAMAGED?

Accepted Answer

6

Answer

2

Answer

3

Answer

5

Question 29

IN EXOTROPIA WHAT CRANIAL NERVE IS DAMAGED

Accepted Answer

3

Answer

2

Answer

5

Answer

6

Question 30

outside layer

Accepted Answer

Fibrous tunic

Answer

Choroid

Answer

Sensory tunic

Answer

Lens

Question 31

middle layer, blood rich nutritive tunic and pigment prevents light from scattering

Accepted Answer

Choroid

Answer

Retina

Answer

Sclera

Answer

Cornea

Question 32

smooth muscle that contracts to adjust the shape of the lens

Accepted Answer

ciliary Body

Answer

retinal Body

Answer

scleral Body

Answer

corneal Body

Question 33

pigmented layer that gives eye color.

Accepted Answer

iris

Answer

sclera

Answer

cornea

Answer

retina

Question 34

inside layer

Accepted Answer

Sensory tunic

Answer

Fibrous tunic

Answer

Retina

Answer

Cones

Question 35

most found towards the edges of the retina

Accepted Answer

Rods

Answer

Cones

Answer

Iris

Answer

Sclera

Question 36

thin layer of tissue that lines the back of the eyes on the inside. Located near the optic nerve, and it senses light and send images to the brain

Accepted Answer

Retina

Answer

Cornea

Answer

Pupil

Answer

Iris

Question 37

is the amount of deflection of a ray of light that happens when traveling in a straight path through a transparent material.

Accepted Answer

Refractive Power

Answer

Diffractive Power

Answer

Reflective Power

Answer

Absorption Power

Question 38

The Refractive power of the eye is about

Accepted Answer

58-62 diopters

Answer

60-69 diopters

Answer

59-62 diopters

Answer

55-69 diopters

Question 39

Speed of light in air

Accepted Answer

300,000 km/s.

Answer

500,000 km/s.

Answer

150,000 km/s.

Answer

200,000 km/s.

Question 40

the ratio of the speed of light in air to the speed of light in the substance.

Accepted Answer

Refractive index

Answer

Refractive speed

Answer

Light ratio

Answer

Speed index

Question 41

1 diopter is the ability to focus parallel light rays at a distance of

Accepted Answer

1 m

Answer

1 mm

Answer

1 nm

Answer

1 dm

Question 42

Accommodation Refractive power of the lens is

Accepted Answer

20 DIOPTERS

Answer

25 DIOPTERS

Answer

30 DIOPTERS

Answer

34 DIOPTERS

Question 43

WHAT DO YOU CALL THE PROCESS WHERE THE LENS CHANGES SHAPE IN ORDER TO INCREASE ITS REFRACTIVE POWER

Accepted Answer

Accommodation

Answer

Distortion

Answer

Deformation

Answer

Modification

Question 44

Accommodation is controlled by

Accepted Answer

parasympathetic FIbers

Answer

somatic nervous system

Answer

sympathetic Fibers

Answer

endocrine system

Question 45

as a person grows older, the lens grows larger and thicker and becomes far less elastic, partly because of progressive denaturation of the lens proteins.

Accepted Answer

Presbyopia

Answer

Emmetropia

Answer

Myopia

Answer

Astigmatism

Question 46

Normal Vision

Accepted Answer

Emmetropia

Answer

Presbyopia

Answer

Hyperopia

Answer

Myopia

Question 47

is a refractive error of the eye that causes the visual image in one plane to focus on a different distance from that of the plane at right angles.

Multiple focal points

Accepted Answer

Astigmatism

Answer

Myopia

Answer

Presbyopia

Answer

Hyperopia

Question 48

Ciliary muscle is completely relaxed, as the light rays coming from distant objects are focused in front of the retina

Accepted Answer

Myopia

Answer

Presbyopia.

Answer

Astigmatism.

Answer

Hyperopia

Question 49

Cloudy or opaque area or areas in the lens. In the early stage of cataract formation, the proteins in some of the lens fibers become denatured.

Accepted Answer

Cataracts

Answer

Glaucoma

Answer

Retinal detachment

Answer

Macular degeneration

Question 50

Is a measure of the ability of the eye to distinguish shapes and the details of objects at a given distance.

Accepted Answer

Visual acuity

Answer

Visual clarity

Answer

Optical resolution

Answer

Sight precision

Question 51

WHAT CHART IS USED TO TEST VISUAL ACUITY

Accepted Answer

Snellen chart

Answer

Eye chart

Answer

Vision chart

Answer

Optical chart

Question 52

HOW FAR SHOULD THE SNELLENS CHART BE

Accepted Answer

20 feet

Answer

30 feet

Answer

25 feet

Answer

15 feet

Question 53

which maintains sufficient pressure in the eyeball to keep it distended

Accepted Answer

INTEROCULAR FLUID

Answer

LACRIMAL FLUID

Answer

VITREOUS HUMOR

Answer

AQUEOUS HUMOR

Question 54

WHICH FLUID LIES IN FRONT OF THE EYES

Accepted Answer

Aqueous humor

Answer

Intraocular fluid

Answer

Vitreous humor

Answer

Lacrimal fluid

Question 55

Finally, it enters the ? which is like a drainage pipe for the eye, connecting to veins outside the eye.

Accepted Answer

canal of Schlemm

Answer

scleral venous sinus

Answer

retina

Answer

optic nerve

Question 56

AQUEOUS HUMOR passes through a mesh-like structure called

Accepted Answer

trabeculae

Answer

cones

Answer

rods

Answer

canal of schlemm

Question 57

HOW STRONG IS THE INTEROCCULAR PRESSURE

Accepted Answer

15 MM HG

Answer

12 MM HG

Answer

20 MM HG

Answer

18 MM HG

Question 58

It is a disease of the eye in which the intraocular pressure becomes pathogically high, sometimes rising acutely to 60 to 70 mm Hg

Accepted Answer

Glaucoma

Answer

Cataracts

Answer

Macular degeneration

Answer

Retinal detachment

Question 59

Pressures above ? can cause loss of vision when maintained for long periods.

Accepted Answer

25 TO 30 MM HG

Answer

30 TO 35 MM HG

Answer

20 TO 25 MM HG

Answer

25 TO 35 MM HG

Question 60

produces lacrimal fluid or tears

Accepted Answer

lacrimal gland

Answer

nasolacrimal duct

Answer

lacrimal sac

Answer

lacrimal canals

Question 61

drains Lacrimal fluid from eyes

Accepted Answer

Lacrimal canal

Answer

Lacrimal sac

Answer

Tear duct

Answer

Nasolacrimal duct

Question 62

provides passage of lacrimal fluid towards nasal cavity

Accepted Answer

Lacrimal sac

Answer

Nasolacrimal duct

Answer

Lacrimal canals

Answer

Lacrimal gland

Question 63

empties lacrimal fluid into the nasal cavity

Accepted Answer

nasolacrimal duct

Answer

nasopharyngeal duct

Answer

nasal septum

Answer

nasal concha

Question 64

IF A PATIENTS EYE DRIFTS MEDIALLY WHAT MUSCLE IS WEAK

Accepted Answer

lateral rectus muscle

Answer

superior rectus muscle

Answer

medial rectus muscle

Answer

inferior rectus muscle

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