Vision 1

Question 1

This type of spherical lens will converge light rays

Answer 1

Convex

Question 2

This type of spherical lens will diverge the light rays

Answer 2

Concave

Question 3

This type of lens will give you a focal line

Answer 3

Cylindrical

Question 4

If you increase the power of the lens, it will give you what kind of focal length

Answer 4

Shorter focal length

Question 5

Power of the lens is determined by what unit

Answer 5

Diopter

Question 6

Refractive power of spherical convex lens will give you

Answer 6

A positive power

Question 7

If you have 10 diopter, the focal point is

Answer 7

Nearer to the lens

Question 8

It can dilate and constrict to control how much light can enter

Answer 8

Pupil

Question 9

This is where the object will be registered

Answer 9

Retina

Question 10

Is has the highest capability of bending light rays or highest refractive power

Answer 10

Cornea

Question 11

This holds the lens to maintain its shape

Answer 11

Suspensory ligament

Question 12

What happens if the suspensory ligament is tight or tense

Answer 12

It would decrease the convexity

Decrease the power of the lens

Question 13

If the ciliary muscles contracts what will happen to the lens

Answer 13

The lens would be more convex

Increase the power of the lens

Question 14

This condition is called loss of accommodation by the lens

Answer 14

Presbyopia

Question 15

Normal vision is called

Answer 15

Emmetropia

Question 16

Causes of hyperopia

Answer 16

Weak lens

Small eyeballs

Question 17

What lenses do you give when the px has hyperopia

Answer 17

Convex

Question 18

Causes of myopia

Answer 18

Growing eyeballs

Increases thickness of the lens

Question 19

What type of lens do you give to px with myopia

Answer 19

Concave

Question 20

This condition has an irregular shaped cornea

Answer 20

Keratoconus

Question 21

The part of the retina has highest visual acuity

Answer 21

Fovea centralis

Question 22

In depth perception, the person perceives 3 majors means

Answer 22

Size of the image of known object
Moving parallax
Stereopsis

Question 23

The perfect vision is said to be what in meters

Answer 23

6meters by 6 meters

Question 24

Which organ secretes aqueous humor

Answer 24

Ciliary process

Question 25

Where does the aqueous humor drain

Answer 25

Canal of schlemm

Question 26

What are the reasons of increased intraocular pressure

Answer 26

Blockage of the canal of schlemm Old age (fibrotic canal)

Question 27

What are the photoreceptors of the eyes

Answer 27

Rods and cones

Question 28

This is responsible for vision at low light levels (scotopic vision)

Answer 28

Rods

Question 29

Responsible for color vision and responds well to bright light (photopic vision)

Answer 29

Cones

Question 30

Besides the horizontal cells, what other cells can perform lateral inhibition

Answer 30

Amacrin | Bipolar cells

Question 31

Rhodopsin or visual purple is for what

Answer 31

Rods | Black and white

Question 32

Cone pigments or color pigments are for what

Answer 32

for the cones | For color vision

Question 33

Metarhodopsin 2 is also known as and it is broken down into what

Answer 33

The activated rhodopsin Scotopsin and all trans retinal

Question 34

What happens there is a high cGMP

Answer 34

Sodium influx