U7L2 - Post Flashcard - Physiology of the Eye

Front

What do sensory neurons in the retina send to the visual cortex?

Back

Action potentials.

Front

What is the proper term for nearsightedness?

Back

Myopia.

Front

What causes presbyopia?

Back

Loss of elasticity of the lens.

Front

Where do all horizontal light rays that enter the eye converge?

Back

Focal point.

Front

What is the first structure that bends light waves entering the eye?

Back

Cornea.

Front

What is the function of the lens in the eye?

Back

To focus light onto the retina.

Front

What is hyperopia?

Back

Farsightedness, where distant objects are seen more clearly than near ones.

Front

What is the role of the vitreous humor?

Back

To maintain the shape of the eye and provide a pathway for light.

Front

What is the optic disk?

Back

The point where the optic nerve exits the eye, creating a blind spot.

Front

What is the significance of the fovea centralis?

Back

It is the area of the retina with the highest visual acuity.