Sentences with phrase «surface of the eye»

The retina is the tissue that lines the inner surface of the eye to create the visual image.

Make sure the tip of the tube does not touch surface of eye.

Corneal ulcer or irritation in pets, also called keratitis, occurs when cells covering the clear outer surface of the eye, the cornea, are irritated or become infected.

Corneal ulcers are scratches, abrasions or erosions on the front surface of the eye.

Signs of PRA begin with night blindness and eventually progress to a reluctance to go down stairs, sluggish pupillary response, cloudy surface of the eye, bumping into walls or furniture, and tripping or stumbling.

A particular antibody in the breast milk, called immunoglobulin A, prevents the pink eye bacteria from attaching to the mucosal surface of the eye.

They also drag the dog's facial skin downwards leaving the delicate surface of the eye area exposed to dirt and infection.

It is indicated by an inflammatory disorder of the cornea, which is the outer most surface of the eye.

Light passes through the clear window - like cornea on the front surface of the eye, through the dark round opening called the pupil, and enters the lens which focuses the light images onto the retina at the back of the eye.

As a result the cornea (outer surface of the eye) is more exposed which makes it more likely to become dry and can lead to ulceration or direct trauma.

Retinal detachment occurs when the retina, a layer of tissue surrounding the surface of the eye, becomes detached.

Well, in addition to aiding in baby's growth and development, vitamin A has been shown to help prevent eye diseases and also helps reduce the risk of eye infections by supporting the surface of the eye, mucous membranes and skin in their roles as barriers to bacteria and viruses.

For the first time, researchers used human cells to build a model of the surface of the eye that's equipped with a fake eyelid that mimics blinking.

The cornea has a rich network of fine nerves, which play critical roles in protecting and healing the surface of the eye.

New research shows a medicated silicone ring that rests on the surface of the eye reduced eye pressure in glaucoma patients by about 20 percent over six months.

A treatment for dry eye — a burning, gritty condition that can impair vision and damage the cornea — could some day result from computer simulations that map the way tears move across the surface of the eye.

The tear film on the surface of the eye is a very thin fluid layer — only a few millionths of a meter thick.

Thus, there may be no advantage for us in having this extra measure of protection for the surface of the eye.

The third eyelid is also believed to help keep the surface of the eye moister by holding the tear film against the cornea better than the eyelids do by themselves.

Embedded in the bulbar surface is a dense population of lymphoid follicles that are in contact with the surface of the eye and the tear film, a thin layer of liquid.

The cornea is the surface of the eye; it helps focus rays of light on the retina at the back of the eye, and though it appears to be uniform and smooth, it can be misshapen and pockmarked with dents, dimples, and other imperfections that can affect a person's sight.

The tiny ducts through which tears leave the gland of the third eyelid exit between the lymphoid follicles on the surface of the third eyelid, allowing these cells to dump their contents into the tear film and be widely distributed over the surface of the eye.

For years, the ocular surface was thought to be sterile because of the presence of an enzyme called lysozyme that destroys bacteria, antimicrobial peptides, and other factors that rid the eye of microbes that may land from the air (or from our fingers) onto the surface of the eye.

Dr. Basu had previously developed a technique to obtain ocular stem cells from tiny biopsies at the surface of the eye and a region between the cornea and sclera known as the limbus.

When virologists examined a US medical worker who had post-Ebola eye problems, they found no virus in his tears or on the surface of his eye, suggesting that he was unlikely to be infectious.

A screening test of my peripheral vision then looks below the surface of my eyes to check for early signs of glaucoma and other diseases.

Although regular contact lenses can actually cause dry eye if worn over the long - term, special contact lenses called scleral lenses or bandage lenses can fix the problem by protecting the surface of the eye and keeping moisture from seeping away.

«Usually the eyes turn red because the blood vessels on the surface of the eye get dilated or inflamed,» explains Jessica Lee, MD, assistant professor of vitreoretinal surgery, department of ophthalmology at the New York Eye and Ear Infirmary of Mount Sinai.

«If your eyes are kept open for a long time because of lack of sleep, it prevents the cornea (the surface of your eye) from being well lubricated, and this can cause dryness and redness,» says Dr. Lee.

The enzymes and antibodies that protect the surface of your eyes require oxygen to fight off germs.

Due to the proximity to the membranes, and the surface of the eye itself, waterproof eye liner is preferred.

Or, on the other hand, perhaps it's that «there's undiscovered greatness under the surface of the eye» persona?

While putting in her contact lenses, the left lens set off a chain reaction, igniting a constellation of nerves that radiated backwards from behind the surface of her eye.

Corneal changes called pigmentary keratitis (brown to black pigment deposition on the surface of the eye causing a «marble» like appearance) were apparent, which commonly occurs in dogs afflicted by Keratoconjunctivitis Sicca («dry eye»).

They «flush» the conjunctiva, helping to «remove» particulate material and other irritants from the surface of the eyes.

If the eyelids seem red or swollen, the guinea pig squints, the surface of the eye is cloudy, or you see yellow to green discharge from the eye, then immediate veterinary care is needed.

The veterinary surgeon will carry out a thorough examination of the eye (s) taking particular note of the position of the eyelid margins in relation to the surface of the eye.

Tears have several very important functions and are essential for the health and transparency of the cornea (the surface of the eye).

Historically at UC Davis, we have used a topical anesthetic named proparacaine, that is applied to the surface of the eye before any samples are taken to minimize discomfort.

If they get into the tissue around the eye, they can cause severe irritation and even an ulcer on the surface of the eye.

It washes away dirt and debris that would otherwise accumulate on the surface of the eye.

Without prompt treatment the surface of the eye (cornea) can become scarred and affect vision.

We sedated him, numbed the surface of his eyes, and were able to find and remove FOUR adult worms!

Ectopic cilia are one or several hairs that grow abnormally through the conjunctiva and come into contact with the surface of the eye (cornea).

The surface of the eye or the cornea may also dry out, resulting in keratitis (corneal inflammation) or corneal ulcers.

Eyelashes then scratch the surface of the eye and cause irritation and damage.

It causes intense irritation in the surface of an eye.

When a dog presents with a sunken eye, this can be indicative of severe eye pain as these muscles tend to spasm as a reaction to painful conditions affecting the surface of the eye as seen in corneal ulcers.