A dry eye examination, also known as an Anascertaining Eye Clinical Study (AEC), is one of the most frequently ordered laboratory tests today. An MMP-9 test or quantitative refraction examination is used for detecting any change in the ocular content or function of the lens and its surface. This test measures an increase or decrease in the rate of the tear production by measurements of the response of the eyes to visual stimuli. A higher MMP-9 value means higher levels of tear production. An MMP-9 test is performed on a daily basis in all areas of the United States.
The most common cause of dry eye evaluation is dry eye syndrome, which is defined as decreased tear production and increased protein in the conjunctiva and sclera of the eyes. Other possible causes of this syndrome are allergies to various substances and environmental factors such as air pollution. A dry eye syndrome is commonly seen in children, elderly individuals with cataracts, and those with dry eye disease. More commonly, dry eye syndrome occurs in people who wear contact lenses or eye glasses continuously or have been wearing them for a significant amount of time. A dry eye evaluation will also include testing for clinical signs and symptoms of inflammation. Inflammation is a normal part of the body's defense system against infectious and non-infectious irritants. Commonly seen signs of inflammation include redness, swelling, and itching around the eyes. Additional symptoms may include crusting of the conjunctiva, discharge, and increased sensitivity to light. All of these symptoms can be acute or chronic in nature. Get more info here! In order to perform a dry eye evaluation, your ophthalmologist will gently remove a small amount of tears using a fine-toothed comb. He will then insert a tiny wet drops of a particular eye medication onto the area to be tested. This specific medication has been shown to decrease the tear film thickness and increase the lubrication of the eyelids. Get more facts about eye care at https://en.wikipedia.org/wiki/Eye_doctor. Once the lubrication of the eyes has been achieved, your ophthalmologist will then conduct allergies and dry eye evaluation by looking at the conjunctiva, and inspecting for any inflammatory changes that may be present. Common inflammatory conditions include erythema, edema, and erythematic scars. Typically, your ophthalmologist will look for evidence of either edema or inflammation using either a special digital tear film camera or a conventional scanner. A digital camera will usually give a faster and more accurate evaluation, but a conventional scanner is better for cases that involve erythema or erythematic scars. These types of assessments are called iatrogenic evaluation, and are often done on patients who have had previous eye surgery. After the dry eye evaluation is complete, your eye care physician will formulate an individualized treatment protocol based on your case history and initial findings. Your treatment plan should include use of glasses, contact lenses, or a combination of both. He may also recommend that you wear an artificial intraocular lens in order to correct your vision. In most cases, your eye care physician will discuss these issues with you, and then determine which treatment is best for you. In most cases, the surgical procedures involved are quite simple, and often do not require an overnight stay in the hospital.
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