Parts of the eye
We are the 3 layers of the eye.
What is the sclera, uvea, and retina?
I bends light rays from the outside into the eye through curved surfaces and refractive media and finally to the retina.
What is refraction?
My Eyes appear “sunken.”, Arcus senilis forms develops, and Sclera yellows or appears blue.
What is changes in appearance?
My tests measure both distance and near vision.
What is Visual acuity ?
I am a test used to detect an infection of the cornea.
What is a culture?
I am the colored portion of the external eye and my center opens into the pupil
What is the iris>
I control the amount of light that enters the eye.
What is Pupillary constriction and dilation?
I flatten, which blurs vision.
What is the cornea?
I measures distance vision.
What is the Snellen chart?
I am ordered to the eyes, the bony structures around the eyes, and the extraocular muscles. I can also detect tumors in the orbital space.
What is a CT?
I am the clear, watery fluid that fills the anterior and posterior chambers of the eye
What is aqueous humor?
I allow the healthy eye to focus images sharply on the retina whether the image is close to the eye or distant.
What is Accommodation?
My elasticity is lost, increasing the near point of vision (making the near point of best vision farther away).
What is the lens?
My test determines the degree of peripheral vision
What is Visual field testing?
I am ordered to examine the orbits and the optic nerves and to evaluate ocular tumors. I cannot be used to evaluate injuries involving metal in the eyes.
What is a MRI?
I am the circular, convex structure that lies behind the iris and in front of the vitreous body.
What is the lens?
I have the ability to turn both eyes inward toward the nose at the same time.
What is conversion?
We decrease in ability to dilate results in small pupil size and poor adaptation to darkness.
What are the Iris and Pupil?
I assess muscle function.
What are the six cardinal positions of gaze?
I magnify the anterior eye structures
What is Slit-lamp examination?
My Tears flow across the front of the eye, toward the nose, and into the inner canthus.
What is lacrimal gland?
I am the perfect refraction of the eye in which light rays from a distant source are focused into a sharp image on the retina.
What is Emmetropia?
I discrimination among greens, blues, and violets decreases.
What is color vision?
Color vision is usually tested using the _______
What is the Ishihara chart?
I am ordered for detecting corneal trauma, problems caused by a contact lens, or the presence of foreign bodies, abrasions, ulcers, or other corneal disorders.
What is Corneal staining?