Fluorescein Staining – diagnosing corneal injury

What is Fluorescein Staining and definition Fluorescein Staining is a simple procedure for diagnosing CORNEAL INJURY or foreign objects in the EYE. The ophthalmologist places a strip of paper containing fluorescein at the edge of the eye. The dye rapidly leaches into the tears. Some people experience a slight burning sensation when the dye washes across the eye for the […]

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Ophthalmic Examination – Eye Testing

Ophthalmology Exam definition Ophthalmology Exam – the basic diagnostic procedures an ophthalmologist uses to assess the health of the EYE and vision, and detect problems with the structures and functions of the eye. The standard ophthalmic examination includes several components. For certain parts of the examination the ophthalmologist may place drops in the eyes that anesthetize the eye […]

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Ophthalmoscopy procedure

Ophthalmoscopy procedure definition Examination of the EYE using an ophthalmoscope, a hand-held, lighted magnifying lens.The ophthalmoscope projects a narrowly focused beam of light that illuminates the structures of the eye. Ophthalmoscopy is the essential introductory examination of the eye and can determine what, if any, further diagnostic procedures are necessary. Ophthalmoscopy allows the doctor to examine the […]

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Optical Coherence Tomography (OCT)

Optical Coherence Tomography definition Optical Coherence Tomography (OCT) – an imaging procedure that noninvasively and painlessly permits the ophthalmologist to visualize the layers of the RETINA. OCT can provide a “virtual biopsy” of retinal tissue, helping diagnose or monitor AGE-RELATED MACULAR DEGENERATION (ARMD), macular holes, retinal tears, and OPTIC NERVE inflammation or damage such as can result from GLAUCOMA. The […]

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Phototherapeutic Keratectomy (PTK) – laser eye surgery

Phototherapeutic Keratectomy definition Phototherapeutic Keratectomy (PTK) – treatment with an excimer (cool) laser to smooth irregularities and dissipate cloudiness in the CORNEA. PTK is an AMBULATORY SURGERY procedure, with local anesthetic to numb the surface of the EYE and a mild sedative for comfort. The procedure takes 20 to 45 minutes, depending on the extent of corneal sculpting […]

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Age-Related Macular Degeneration (ARMD)

Definition of ARMD Age-Related Macular Degeneration (ARMD) is progressive condition that results in the gradual deterioration of the macula, the portion of the retina that provides the ability to see fine detail, and loss of vision from the center of the field of vision. ARMD is the leading cause of vision impairment, resulting in functional limitations and […]

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Prosthetic Eye

Prosthetic Eye definition Prosthetic Eye is a cosmetic replacement, also called an ocular prosthesis or artificial EYE, for a surgically removed (enucleated) eye. A specialist called an ocularist designs the prosthetic eye to be as close a match in appearance as possible for the remaining natural eye. Prosthetic Eye Implant The most common type of prosthetic eye […]

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Aging, Vision and Eye Changes That Occur With

Age-related Vision and Eye Changes The structures of the eye and the processes of vision begin to undergo changes in the late fourth or early fifth decade of life. By age 65, 50 percent of people have vision impairments. By age 80, more than 90 percent of people have vision impairments. Treatment can mitigate some of these changes, […]

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Refraction Test for eyes

Refraction Test definition Refraction Test is a diagnostic procedure to measure REFRACTIVE ERRORS of the EYE, such as MYOPIA, HYPEROPIA, and ASTIGMATISM. An optometrist or ophthalmologist conducts the test using a device called a refractor. The refractor fits against the face somewhat like a flattened pair of binoculars, with a chin rest and forehead pad to support the head in proper […]

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Amsler Grid – Macular Degeneration Test

Definition of Amsler Grid Amsler Grid is a basic test to detect or monitor the progression of age-related macular degeneration (armd), a condition in which the macula, the area on the retina responsible for fine detail vision, deteriorates. The Amsler grid is a square with evenly spaced horizontal and vertical lines, and a dot in the center […]

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