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cataract |
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- A cataract is a spot on the eye that blocks light, or a blemish within the lens of the eye. This creates a hazy, cloudy, or frosty appearance. Cataracts interfere with vision. |
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scleritis |
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- The sclera is the white, outer coat of the eye. When this area becomes inflamed, the condition is called scleritis. |
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corneal injury |
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- The cornea (corn-ee-ah) is the clear window on the front of the eye that covers the coloured iris and pupil. Injury to the cornea causes hazy vision and scarring. It can also cause a loss of vision. |
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corneal ulcers and infections |
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- The cornea is the clear window on the front of the eye that covers the coloured iris and pupil. There are different types of corneal ulcers. The ulcers may be cause by bacteria, a virus or fungus. The corneal tissue breaks down starting at the surface. Poor healing can cause an ulcer to form. |
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corneal surgery |
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- The clear covering of the eyeball is called the cornea. Surgery is performed on the cornea for two main reasons. One is to remove scarring and clouding that interferes with vision. The other purpose of surgery is to change the curve of the cornea to correct vision problems such as nearsightedness or farsightedness. Operations on the cornea can performed either with traditional surgical tools or as laser surgery. |
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corneal transplant |
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- The cornea is the clear covering of the eyeball. With corneal transplantation, a part of a person's cornea is removed. It is then replaced with a portion of a cornea from a donor eye. In some cases, only the surface portion of the cornea needs to be removed. This is referred to as lamellar keratoplasty. In the majority of cases, however, the entire thickness of the cornea must be replaced. This is called penetrating keratoplasty. |
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endophthalmitis |
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- Endophthalmitis is an inflammation inside the eye caused by an infection. It is a serious condition that can lead to permanent loss of vision, or visual impairment. |
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foreign object in the eye |
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- Sometimes small objects get under the eyelid but do not penetrate the eyeball itself. These can cause irritation and discomfort in the eye and must be removed. |
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aging changes in the senses |
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hypertensive retinopathy |
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sports for adults with disabilities |
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- A sport is a physical activity people do for pleasure. Generally sport involves competition. Participation in various sports benefits adults because activity: allows for fun builds a positive self-image connects people through competition helps people to meet other people of like interests and situations improves health, discipline, and confidence A disability is the lack of ability to function normally -- physically or mentally. Sports help to promote a focus on the adult's ability, not on his or her disability. |
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neonatal conjunctivitis |
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- Conjunctivitis is an inflammation of the membranes that line the eyelid or the eye. In some cases it is caused by allergies or infections. It can also be brought on by irritants or toxins. Sometimes, another type of illness in the body can cause the problem. When the condition occurs in babies under 4 weeks old, it is called neonatal conjunctivitis. |
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macular degeneration |
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color blindness |
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eye exam |
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visual field test |
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vitamin A |
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Sight unseen |
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Sight unseen - March 27, 2001 - Don't be embarrassed if you've never heard of Orthoptics, you're not alone - but that's the whole point of an Awareness Week! Wendy Champagne takes a closer look. - Orthoptics is a health practice... |
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tissue donation |
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retinal detachment |
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- The retina is the nerve layer that lines the inside of the back of the eye. It senses light and sends images on to the brain. When the retina is separated from the layer beneath the retina that gives it nourishment, called the choroids, this is called retinal detachment. The retina does not work when it is detached. This is a very serious problem and, if untreated, almost always leads to blindness. |
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Tay-Sachs disease |
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trachoma |
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- Trachoma is a highly contagious infection of the eyes. Trachoma is caused by an organism called Chlamydia trachomatis. |
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flashes and floaters |
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- Floaters are spots or lines that seem to float in a person's field of vision. The affected person often sees these accompanied by flashes of light coming from the side of the eye. |
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vision changes |
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visual impairment |
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tonometry |
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- The tonometry test measures the pressure inside the eyeballs. This is called intraocular pressure, or IOP. |
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