Eyeglasses
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  Eyeglasses



Eyeglasses

   A pair of ophthalmic lenses in a frame or mounting which is supported by the nose and ears. The purpose is to aid or improve vision. It does not include goggles or nonprescription sun glasses for which EYE PROTECTIVE DEVICES is available.

RELATED TERMS
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Vision
The sense of sight.

Goggles
Personal devices for protection of the eyes from impact, flying objects, glare, liquids, or injurious radiation.

Glasses
A pair of ophthalmic lenses in a frame or mounting which is supported by the nose and ears. The purpose is to aid or improve vision. It does not include goggles or nonprescription sun glasses for which EYE PROTECTIVE DEVICES is available.

DEVICES
Expendable and nonexpendable equipment, supplies, apparatus, and instruments that are used in diagnostic, surgical, therapeutic, scientific, and experimental procedures.



SIMILAR TERMS
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PREVIOUS AND NEXT TERMS
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Eye Movements, Rapid
A stage of sleep characterized by rapid movements of the eye and low voltage fast pattern EEG. It is usually associated with dreaming.

Eye Movements
Voluntary or reflex-controlled movements of the eye.

Eyelid, Third
A fold of the mucous membrane of the CONJUNCTIVA in many animals. At rest, it is hidden in the medial canthus. It can extend to cover part or all of the cornea to help clean the CORNEA.

Eyelid Ptosis
Drooping of the upper lid due to deficient development or paralysis of the levator palpebrae muscle.

Eyelid Neoplasms
Tumors of cancer of the EYELIDS.

Eyeglasses

Eye, Artificial
A ready-made or custom-made prosthesis of glass or plastic shaped and colored to resemble the anterior portion of a normal eye and used for cosmetic reasons. It is attached to the anterior portion of an orbital implant (ORBITAL IMPLANTS) which is placed in the socket of an enucleated or eviscerated eye. (From Dorland, 28th ed)

Eye Segments, Anterior
That part of the eyeball anterior to the lens.

EZCAT
A compound used as an x-ray contrast medium that occurs in nature as the mineral barite. It is also used in various manufacturing applications and mixed into heavy concrete to serve as a radiation shield.

EAAT2 Protein
A high affinity glutamate/aspartate transporter found in ASTROCYTES and in the liver. It action can be coupled to the co-transport of potassium, sodium or hydrogen ions.

EAAT2 Neurotransmitter Transporter
A high affinity glutamate/aspartate transporter found in ASTROCYTES and in the liver. It action can be coupled to the co-transport of potassium, sodium or hydrogen ions.

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