Question

Which function of a client’s eyes ensures formation of a single image of close objects being seen?

Answer 1

The eye convergence effect allows you to see only one image of nearby objects. Mydriasis is the dilation of the pupil when you reduce light or see into the distance.

Describe the structure of the human eye.

Each eye constantly adjusts the amount of light it receives, focusing on both near and far objects, producing a continuous image that is instantly transmitted to the brain. The orbit is a cavity of bone that contains the eyeball, muscles, nerves, blood vessels, and structures that produce and drain tears. The eyeball is made up of three layers, including the optically transparent aqueous humor, the lens, and the vitreous.

1. The outermost layer consists of the cornea and sclera.
2. The middle layer contains the main blood supply of the eye.
3. The inner layer consists from back to front of the choroid, ciliary body and iris.

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