eye

(i) [A.S. eSg?.] Oculus, ophthalmos, the organ of vision. It is a nearly spherical body with the segment of a smaller sphere (the cornea) set in at the anterior pole. It has three coats: an outer fibrous protective Coat (the sclera), a middle vascular and pigmented coat (the chorioid), and an inner nervous coat (the retina); the 349 rior part of the sclera is wanting, its place taken by the transparent cornea; the J lie and inner coats are also wanting ante The interior of the eye contains the re•f. ing media. Immediately behind the cornea te anterior chamber, separated from the eye'ball. sri or chamber by a retractile diaphragm iris), with an aperture in its center (the eye'brow, 7); the anterior and posterior chambers SUed with a clear fluid (the aqueous humor). posterior chamber is bounded posteriorly he most important refracting medium (the eye'lash. alline lens). The cavity of the eyeball nd the lens is filled with a gelatinous subeye'lid. ce (the vitreous humor or vitreous body). he periphery of the iris, connecting it with chorioid coat, is the ciliary body, composed le orbiculus ciliaris and the ciliary proce es, lar in structure to the chorioid coat,, and the ry muscle, composed of radial and circular riped fibers the ciliary muscle is the muscle; ccommodation, acting on the crystalline lens idjust it for the varying distances of near m. The optic nerve enters the eyeball near posterior pole and its fibers are distributed lie posterior part of the retina. The various cles moving the eyeball are attached to the a externally, amaurot'ic cat's e., a yellow ix from the dilated pupil in cases of glioma;he retina, artifi'cial e., a curved disc of jue gla , with an imitation iris and pupil he center, inserted beneath the eyelids and ported by the stump left after evisceration or:leation; it may be a thin shell, or a "Snellen rm eye" which is thicker and hollow, blackcchymosis of the lids and their surroundings. ag e., the eye, in cases of squint, which is cted toward the object looked at. hot e., ty conjimctivitis or episcleritis, pink e.,;e epidemic conjimctivitis. squint'ing e., eye, in cases of squint, which is not directed ard the object looked at. wa'tery e., epiphora. eye-mem'ory. eyepiece Qce, an ophthalmia, ophthalmosteresis. adhesion rbital ti ues, syncantnus. angle, canthus. artihypoblepharon. calculus, ophthalmolith, de1, ophthalmocace, ophthalmolyma, ophthal;tion, hthisis. disease, ophthalmopathy, disuse, anopeye-spec'ulum. divisioa of a muscle or tendon, ophthalmomyly. enlargement, ophthalmacrosis, megalophthalezamlnatlon, ophthalmoscopy, excision, enu;ion, ophthahnectomy. fatigue, asthenopia, copieye's pot. ophthaimocopia, eyestrain, fi ure, coloboma., ening, glaucoma, hemorrhage from, ophthalrhagia. hemorrhage into, hem ophthalmia. inato close, lag ophthalmia. inflammation, ophthaleyestone r ophthalmitis, ent ophthalmia, panophthalmia; see under conjunctiva, measurement, ophthalmomnystagmus, ophthalmodonesis. pam, oscillation, almalgia, ophthalmodynia, paralysis of muscles, eyestrain halmoplegia, ophthalmoparalysis. pigmentation, halmomelanosis. position of axis, normal, isoia, mes or opter; deviation up, hyperphoria, hyperia, up and in, hyp ere soph or i a, up and out, hyperm phoria; dawn, hypophoria, hypotropia, down and Jesophoria, down and outward, hypoexophona;_jM, hori a, esoptropia, convergent s'rab-smus OTsqumt; exophoria, exotrooia, divergent strabismus or nt. protrusion, exoohthalmus, ophthalmocele, eyetooth;halmoptosis, exorbitism, p ocidentia ocuh. puncophthalmocentesis, paracentesis bulb i, para, centesis oculi. rupture, ophthalmorrhexis. shrinking, micro pht halm i a, sinking in, enophthalmos. softening, ophthalmomalacia, specialist in diseases of, oculist, ophthalmologist, ophthalmiater. specialty or diseases, ophthalmology, ophthalmiatrics, ophthalmonosoiogy.. The globe of the eye, the eye proper without the appendages.* i, Superoilium, the crescentic line of hairs at the upper edge of the orbit, marking the upper limit of the upper eyelid. 2. The arch formed by the upper margin of the orbit. Cilium, one of the stiff hairs projecting from the tarsal margin of the eyelid. One of the two movable folds of skin (upper and lower eyelids), lined with conjunctiva, continuous with the integument of the face, in front of the eyeball. The free edge of each eyelid is stiffened with a framework of fibrous connective ti ue, the tarsus, between which and the conjunctiva are the Meibomian* glands. At the free margin of each eyelid is a row of stiff hairs, the cilia or eyelashes. The angle or junction of the eyelids at either side is called the canthus absence, ablepharon. adhesion between, ankyloblepharon, blepharosynechia, blepharosymphysis, blepharocleisis; congenital, crypto pht halm us. discoloration, blepharomelasma, blepharochromidrosis, blepharodyschroia. drooping of upper, ptosis, blepharoplegia, blepharoptosis. edema, blepharedema. eversion, ectropion, ecstiophe, fi ure, blepharocoloboma. inability to close, lag ophthalmia. mcision, blepharotomy, tar so to my, inflammation, blepharitis, blepharadenitis, blepharoblennorrhea, blepharopyorrhea. inversion, entropion, enstrophe. large size, macroblepharia. narrow slit between, blmharophimosis, blepharostenosis. phlegmon, sty, hordeolum, jilastic surgery, blepharoplasty, tarsoplasty. pouching of upper, blepharochalasis. sebaceous cyst, chalazion, chalaza. small size, microblepharia, resulting in lag ophthalmia. suturing, blepharorrhaphy, tarsorrhaphy, thickening, blepharopachynsis, pachyblepharon. tumor, blepharoncus, tarsophyma, blepharophyma, pladaroma. twitching, blepharospasm blepharism, blepharoclonus. wide opening between, blepharo-, diastasis. Memory chiefly of what is seen. (i'pes). The compound lens at the end of the microscope-tube nearest the eye; it magnifies the image made by the lens at the other end, or the objective see cut under microscope.; Blepharostat, an instrument for keeping the eyelids apart during inspection of or operation on the eye. i. The beginning of the eye in the emA bryo. 2. colored spot or plastid (chromatophore) in a unicellular organism. 3. Ocellus. (i's ton). A small smooth shell or other object which is inserted beneath the eyelid for the purpose of removing a foreign body. (i's tran). Asthenopia, ophthaimocopia; tire of the ciliary muscle or of some of the extrinsic muscles of the eyeball, due to errors of refraction or to imbalance of the ocular muscles; the symptoms are, in different cases, pain in the eyes, lacrymation, sties, headache, vertigo, nausea, and various other reflex symptoms. (i-tooth')- One of the upper canine teeth. F. Abbreviation for field of vision, Fahrenheit; chemical symbol of fluorine. Abbreviation for filial generation, or the offspring resulting from a certain mating the offspring from an initial mating are called collectively the first filial generation (Fi), their offspring comprise the second filial generation {F2), etc.