Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of eyeball is as below...

Tonometry :: Tonometry (n.) measurement of tension, esp. the tension of the eyeball..

Cornea :: Cornea (n.) The transparent part of the coat of the eyeball which covers the iris and pupil and admits light to the interior. See Eye.

Eyeball :: Eyeball (n.) The ball or globe of the eye.

Supraciliary :: Suprachoroidal (a.) Situated above the choroid; -- applied to the layer of the choroid coat of the eyeball next to the sclerotic.

Hypermetropy :: Hypermetropy (n.) A condition of the eye in which, through shortness of the eyeball or fault of the refractive media, the rays of light come to a focus behind the retina; farsightedness; -- called also hyperopia. Cf. Emmetropia..

Intra- :: Intra- () A prefix signifying in, within, interior; as, intraocular, within the eyeball; intramarginal..

Tonometer :: Tonometer (n.) An instrument for measuring tension, esp. that of the eyeball..

Prosphysis :: Prosphysis (n.) A growing together of parts; specifically, a morbid adhesion of the eyelids to each other or to the eyeball..

Trichiasis :: Trichiasis (n.) A disease of the eye, in which the eyelashes, being turned in upon the eyeball, produce constant irritation by the motion of the lids..

Phosphene :: Phosphene (n.) A luminous impression produced through excitation of the retina by some cause other than the impingement upon it of rays of light, as by pressure upon the eyeball when the lids are closed. Cf. After-image..

Choroid :: Choroid (a.) resembling the chorion; as, the choroid plexuses of the ventricles of the brain, and the choroid coat of the eyeball..

Eyelid :: Eyelid (n.) The cover of the eye; that portion of movable skin with which an animal covers or uncovers the eyeball at pleasure.

Strabotomy :: Strabismus (n.) An affection of one or both eyes, in which the optic axes can not be directed to the same object, -- a defect due either to undue contraction or to undue relaxation of one or more of the muscles which move the eyeball; squinting; cross-eye..

Sclerotic :: Sclerotic (a.) Hard; firm; indurated; -- applied especially in anatomy to the firm outer coat of the eyeball, which is often cartilaginous and sometimes bony..

Exophthalmia :: Exophthalmia (n.) The protrusion of the eyeball so that the eyelids will not cover it, in consequence of disease..

Basedow''s Disease :: Basedow's disease () A disease characterized by enlargement of the thyroid gland, prominence of the eyeballs, and inordinate action of the heart; -- called also exophthalmic goiter..

Glaucoma :: Glaucoma (n.) Dimness or abolition of sight, with a diminution of transparency, a bluish or greenish tinge of the refracting media of the eye, and a hard inelastic condition of the eyeball, with marked increase of tension within the eyeball..

Nystagmus :: Nystagmus (n.) A rapid involuntary oscillation of the eyeballs.

Xerophthalmia :: Xerophthalmia (n.) An abnormal dryness of the eyeball produced usually by long-continued inflammation and subsequent atrophy of the conjunctiva.

Straddled :: Strabotomy (n.) The operation for the removal of squinting by the division of such muscles as distort the eyeball.

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