Question 1

Binocular vision .&#10;A)provides a panoramic field of view&#10;B)allows an animal to see in two different directions&#10;C)is present in horses and rabbits&#10;D)provides depth perception (three- dimensional vision)

Accepted Answer

Binocular vision refers to the ability of an animal to use both eyes simultaneously to focus on a single point, providing depth perception or three-dimensional vision. This is crucial for accurately judging distances, which is not directly related to having a panoramic field of view, seeing in two different directions, or being specific to horses and rabbits.

Question 2

The results of a test of visual acuity are 20/15. This individual _.&#10;A)has normal vision&#10;B)has better than normal vision&#10;C)needs glasses for farsightedness&#10;D)needs glasses for nearsightedness

Accepted Answer

20/15 vision means that what a normal person can see clearly at 15 feet, the individual can see clearly at 20 feet, indicating better than normal vision.

Question 3

The image formed on the retina as light passes through the eye is reversed left to right, inverted, and smaller than the object. It is called a _ image.&#10;A)refracted&#10;B)real&#10;C)reversed

Accepted Answer

The image formed on the retina is a real image because it can be projected onto a screen. It is also reversed left to right and inverted, but it is not necessarily smaller than the object (it depends on the distance between the object and the lens). Therefore, B is the best choice.

Question 4

Many older individuals develop presbyopia, a condition in which .&#10;A)the lens loses elasticity and can no longer focus for distant vision, and visual acuity declines&#10;B)the lens loses elasticity and can no longer focus for distant vision&#10;C)the near point of accommodation becomes further away&#10;D)visual acuity declines

Accepted Answer

Presbyopia is a condition associated with aging where the lens of the eye loses its elasticity, making it difficult to focus on close objects. This results in the near point of accommodation (the closest point at which an object can be seen clearly) moving further away, not issues with distant vision or a general decline in visual acuity.

Question 5

Color blindness is tested using .&#10;A)Ishihara plates&#10;B)a Snellen eye chart&#10;C)sudden illumination of the retina&#10;D)a chart of lines radiating out from a white circle

Accepted Answer

Ishihara plates are specifically designed for testing color vision and identifying color blindness. They consist of a series of plates with colored dots that form numbers or shapes distinguishable only if the viewer has normal color vision.

Question 6

Individuals who are nearsighted, or , see close objects clearly, but see distant objects as blurry.&#10;A)myopic&#10;B)emmetropic&#10;C)hyperopic

Accepted Answer

Myopic is the correct term for nearsightedness, where individuals can see close objects clearly but distant objects appear blurry.

Question 7

The normal, or , eye accommodates properly.&#10;A)hyperopic&#10;B)emmetropic&#10;C)myopic

Accepted Answer

Emmetropic eyes have a normal level of accommodation and can properly focus on objects at different distances without the need for corrective lenses. Hyperopic eyes have difficulty seeing nearby objects, while myopic eyes have difficulty seeing distant objects.

Question 8

This type of examination allows one to study the interior of the eyeball.&#10;A)an ophthalmoscopic examination&#10;B)visual observation&#10;C)observation of the eyeball through a hand- held magnifying lens&#10;D)an examination using a rheostat

Accepted Answer

An ophthalmoscopic examination is specifically designed to allow a doctor to look inside the eyeball, including the retina and other structures, to assess eye health and diagnose conditions.

Question 9

Astigmatism _ .&#10;A)results from a slight elongation of the eyeball&#10;B)results from irregular curvatures of the lens or cornea&#10;C)literally means &#34;old vision&#34;&#10;D)is a decline in visual acuity

Accepted Answer

Astigmatism is caused by irregular curvatures of the lens or cornea, which distort vision.

Question 10

Testing of these reflexes can provide information about cranial nerves that carry autonomic fibers.&#10;A)photopupillary&#10;B)convergence&#10;C)accommodation pupillary&#10;D)photopupillary and accommodation pupillary

Accepted Answer

Testing the photopupillary and accommodation pupillary reflexes can provide information about the cranial nerves that carry autonomic fibers, specifically the oculomotor nerve (cranial nerve III), which is involved in controlling pupil constriction in response to light (photopupillary reflex) and changing the lens shape for focusing on near objects (accommodation pupillary reflex).

Question 11

This reflex involves extrinsic eye muscles, and is controlled by the somatic nervous system.&#10;A)photopupillary&#10;B)convergence&#10;C)accommodation pupillary

Accepted Answer

The answer of This reflex involves extrinsic eye muscles, and...

Deck 24: Special Senses: Visual Tests and Experiments