irido-, irid-, iri-, iris- +

1. The contraction and expansion of the iris.
2. The movement of the iris in contracting and dilating the pupil.

1. Relating to the movements of the iris.
2. A reference to iridokinesis.

1. A technique in alternative medicine by which diagnosis of various bodily disorders is claimed to be possible by examination of the fine structures of the iris of the eye.
2. A diagnostic technique based on the premise that early pathologic changes elsewhere in the body are reflected in the iris before disease becomes clinically apparent.

An analysis of a person's state of health may be made by visual examination of the iris, with the color, density, and position of deposited pigment helping to identify the pathologic process and the organ involved.

A freeing of the iris from synechiae (any adhesion of parts of the body, as of the iris to the cornea).

1. The degenerative softening of the iris.
2. A softening and deterioration of the iris.

Referring to, pertaining to, or causing movement of the iris of the eye.

Tumor or swelling of the iris of the eye.

Pathological illness or lesion of the iris of the eye: Dr. Radcliffe examined Mrs. Lawson's eyes and told her that she had a condition of iridopathy concerning the iris of her left eye, which should be treated within the week.

Concerning the iris and the pupil of the eye.

1. A surgical procedure that makes an incision in the iris of the eye in order to enlarge the pupil or to treat glaucoma; nowadays using a laser.
2. The use of laser light to punch a hole in the iris to relieve intraocular pressure within the eye; for example, glaucoma. This surgery is painless and requires no anesthesia.

The circular, colored curtain of the eye. Its opening forms the pupil. The iris helps regulate the amount of light that enters the eye.

The eye has a number of other key components including: the cornea, the pupil, the lens, the retina, the macula, the optic nerve, and the vitreous.

• The cornea is the clear front window of the eye that transmits and focuses light into the eye.
• The pupil is the dark aperture in the iris that determines how much light is let into the eye.
• The lens is the transparent structure inside the eye that focuses light rays onto the retina.
• The retina is the nerve layer that lines the back of the eye, senses light and creates impulses that travel through the optic nerve to the brain.
• The macula is a small area in the retina that contains special light-sensitive cells and allows us to see fine details clearly.
• The optic nerve is the nerve that connects the eye to the brain and carries the impulses formed by the retina to the visual cortex of the brain.
• The vitreous humor is a clear, jelly-like substance that fills the middle of the eye.

Visual defects of the iris in the eyes in which objects appear surrounded by rings of colored light.

Pertaining to, of the nature of, or characterized by iritis.

Inflammation, or a burning sensation, of the iris of the eye.

A surgical incision of the iris as when creating an artificial pupil.