Contributing / July 22, 2020

What is the opening in the center of the iris?

the pupil
In the center of the iris is a circular hole or opening called the pupil. The inner layer is the retina, which lines the back two-thirds of the eyeball.

What is the iris quizlet?

Iris. The most anterior part of the uvea. Arises from and is continuous with the ciliary body. Forms boundary between the AC and PC.

Which of the following is the opening of the eye quizlet?

The Pupil is the opening through which light enters the eye. In bright light the pupil becomes smaller, in dim light the pupil becomes bigger. The size of the pupil is adjusted by the muscles in the iris. You just studied 9 terms!

What is the window through which light enters the eye called?

Cornea – The anterior clear part of the eye. It is the first clear “window” through which the light enters the eye. The transparency of the cornea is important in order for vision to be clear.

What is the hole in the center of the iris What is its function?

You can see that there’s a hole in the center of the iris. That’s the pupil, the hole that lets light into the eye. The iris contracts or expands to change the size of the pupil. In dim light, the pupil opens wide to let light in.

What is the iris part of the eye?

Iris: The iris is the colored part of the eye that surrounds the pupil. It regulates the amount of light that enters the eye. Lens: The lens is a clear part of the eye behind the iris that helps to focus light and images on the retina.

What is ocular quizlet?

Ocular means pertaining to the eye, and intraocular means pertaining to (-ar) within (intra-) the eye or eyes (ocul/o). An ophthalmologist is an eye specialist, and an ophthalmic prescription would be an order for an eye medication.

Which structure is the opening in the eye through which light passes quizlet?

Pigmented layer that opens and closes to allow more or less light into the eye; central opening is pupil. Transparent, biconvex body behind the pupil of the eye; bends light rays to bring them into focus.

Which part of the eye is the opening through which light initially passes quizlet?

The pupil is the small opening in the center of the iris through which light initially passes.

What is the definition of iris in the eye?

The colored tissue at the front of the eye that contains the pupil in the center. The iris helps control the size of the pupil to let more or less light into the eye.