Osteotomy: Incision of a bone. The conditions that most commonly cause amblyopia are eye misalignment (strabismus), a significant difference in spectacle prescription (refractive error) between the two eyes (anisometropia), or interruption of the light path of one of the eyes (by cataract, scar, tumor, etc.). Distortions, related to astigmatism , that cause the inability of light rays entering the eye to converge (come together) to a single focus point on the retina . Micronutrients that destroy or neutralize free radicals, molecules that have been implicated as one causative factor in the stimulation of abnormal cellular reproduction (cancer) and cellular destruction (aging). This is in contrast to variable expressivity which means that people with the same disease have varying disease severity. Start studying Medical Terminology Chapter 10 - The Eye. Space between the cornea and the crystalline lens , which contains aqueous humor . A visual field test is an examination that may be performed to analyze a patient's visual field. Severe inflammation of the eye. The test may be performed by a technician directly, with the assistance of a machine, or completely by an automated machine. pertaining to outside the eye. Slight irritation of the eye caused by a foreign body on the eye's surface such as sand, dirt or eyelashes. The presence of a relative afferent pupillary defect (RAPD) means that the pupils constrict less when a light is directed into the affected eye than they do when the same light is directed into the normal (or less affected) eye . Cupping is a clinical sign that indicates that a large number of nerve fibers in the optic nerve have been lost. A collection of retinal ganglion cells that carry the information from the macula (the central retina) to the optic nerve and on to the brain. Somatic - pertaining to the body. Each eye has an upper and a lower lid. A group of genetic eye conditions leading to chronic retinal degeneration, accompanied by abnormal deposits of pigment. A disease entity that most commonly affects young men in their teens and early twenties and causes significantly decreased central vision in both eyes. Transparent fluid occupying the anterior chamber and maintains eye pressure. If the irritation remains and discomfort continues, seek professional medical help immediately. Otic - pertaining to the ear. A general term for color vision abnormalities. For instance, one person may have a milder form of the disease while another person with the same disease has a more severe manifestation of the disease. ophthalmology: A surgical specialty concerned with the treatment of eye defects and diseases. Proper alignment of the two eyes. Fear of the light because it hurts the eyes. This is in contrast to incomplete penetrance. Isopters in normal visual fields are oval in shape. document.write('Report an Issue With This Page'); This type of field defect usually represents an insult to the cluster of retinal ganglion cells called the papillomacular bundle. medical the part of the eye behind the pupil that bends light to produce an image on the retina. Coating on the front or back of glasses lenses, which minimizes the glare for patients who are extremely bothered by glare. At East Valley Ophthalmology, we enjoy sharing information about eye care. Severe inflammation of the eye. Synonym Discussion of orbit. This can be seen in a number of pathologic and benign conditions. A condition of "light adaptation" that is used in retinal testing such as the electroretinogram. Condition of the eyes in which they have unequal refractive power. Heritable dyschromatopsias include red (protan), green (deutan), and blue (tritan) color vision deficits. blepharospasm Involuntary increased blinking that progresses to spasms in both eyes. ... pertaining to inside the eye. Usually found along the lower lid margin. Encephalic- Pertaining to the Brain The presence of an RAPD usually indicates damage to the retina or optic nerve that results in diminished light impulses being transmitted from the eye to the brain on the affected side. ... Pertaining to tissues around the orbit. Medical terminology is composed of a prefix, root word, and suffix: Prefix: A prefix is placed at the beginning of a word to modify or change its meaning.Pre means "before." These deficits may be partial (-omaly) or complete (-opia). There can be many causes including inflammation of the iris or cornea. Condition of inflammation and swelling (infection) of the tissue around the nail. A form of color blindness exhibiting loss of the blue receptor, inherited in an autosomal recessive fashion. Greek strabismos = squinting. Learn the right medical terminology for regions of the body and the directional terms for the body’s anatomical positions and regions, planes, and cavities. A device that used to determine degree of red or green color vision deficit. Therefore, a person who has tritanomaly will have a partial blue color vision deficit while a person who has deuteranopia will have a complete green color deficit. Hand held chart featuring horizontal and vertical lines, usually white on black background, used to test for central visual field defects. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Study Chapter 10.5: Abbreviations Pertaining to the Eye flashcards from Marcus Hunter's class online, or in Brainscape's iPhone or Android app. Optical [2] Pertaining to the eye or vision. Absence of eye deviation. 200 Hawkins Drive Red and green color vision defects are X-linked while loss of the blue receptor (tritanopia) is inherited in an autosomal recessive fashion. retinitis pigmentosa). Iowa City, IA 52242, Copyright © 2021 The University of Iowa. Aberration are divided into two main categories: higher-order and lower-order. Periocular. Machine based tests aid diagnostics by allowing a detailed printout of the patient's visual field. Astigmatism is most often combined with myopia or hyperopia . A line connecting a series of points in a visual field at which a person is able to detect a certain size and intensity of light. An area of partial alteration in the field of vision with partially diminished or entirely degenerated visual acuity which is surrounded by a field of normal vision. ophthalmoplegia: Paralysis of one or more of the ocular muscles. They provide total eye care, like vision services, eye exams, medical and surgical care, diagnosis and treatment of disease, and management of … The limits of the visual field are mapped to lights of different sizes and brightness. A dial on the anomaloscope is adjusted until the viewer (patient) believes that the green-red balance is appropriate compared with a standard yellow light whose intensity can also be varied. pertaining to around the eye. The suffixes –omaly and –opia indicate partial and complete color vision deficits, respectively. First, prefixes and suffixes, most of which are derived from ancient Greek or classical Latin, have a droppable -o-. Wash your hands, then flush the eye with lukewarm water for up to 15 minutes. var bugzillaReferrer = window.location.href; OCT measures the retinal nerve fiber layer thickness in glaucoma and other diseases of the optic nerve. There can be many causes including inflammation of the iris or cornea. 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