• Disorders of the conjunctiva and cornea are common sources of eye complaints, in particular because the surface of the eye is exposed to various external influences and is especially susceptible to trauma , infections , chemical irritation, allergic reactions , and dryness . (wikipedia.org)
  • This tough, fibrous tissue surrounds the eyeball and attaches to the cornea, which is the clear front surface of the eye. (kidshealth.org)
  • Chronic UV exposure can lead to structural changes in the surface layers of the eyeball, the cornea that covers the iris and pupil and the conjunctiva - the technical term for the membranes that cover the white of the eye and line the eyelids. (ewg.org)
  • A thin, clear membrane that lines the inner surface of the eyelids and the outer surface of the eyeball, except for the cornea. (glaucoma.org)
  • An infection occurs when the virus invades a part of the eyeball or surrounding area, including the clear front surface of the eye (cornea) or the thin, moist membrane line of the outer and inner eyelids (conjunctiva). (com.pk)
  • The cornea and conjunctiva have a rich concentration of pain fibers (nerves), with the highest proportion located near their surfaces. (petplace.com)
  • In contrast to the cornea, conjunctiva and iris, the retina and optic nerve have no pain sensation. (petplace.com)
  • Xerophthalmia is a serious condition of extreme drying and thickening of the conjunctiva following chronic inflammation and failure to make tears, characterized by hazy, dry cornea. (glutenfreeworks.com)
  • Keratomalacia is a severe non-inflammatory eye condition characterized by a hazy, dry cornea that becomes softened and denuded (loss of protective layer), which when liquified is then irreversibly destroying the eyeball and causing blindness. (glutenfreeworks.com)
  • Since the eyelids are unable to close over the proptosed globe, the conjunctiva and cornea will dry out and appear leathery. (pethealthnetwork.com)
  • LASIK eye surgery is a corrective procedure that aims to rectify vision distortions that are caused by the changing curvature of the cornea and shifting length of the eyeball. (findatopdoc.com)
  • The cornea is a transparent coating that bulges on the outside of the eyeball, and allows light to penetrate its surface at. (findatopdoc.com)
  • A pterygium is a benign, triangular-shaped growth of the conjunctiva (the thin clear layer of tissue that lies over the white of the eyeball) that grows onto the cornea. (optom.on.ca)
  • The conjunctiva is the mucous membrane that lines the eyelid and covers the visible portion of the eyeball except the cornea (the transparent part of the eyeball that covers the iris and the pupil). (activegaliano.org)
  • An annular transitional zone, approximately 1 mm wide, between the cornea and the bulbar conjunctiva and sclera. (bvsalud.org)
  • It is ophthalmologically significant in that it appears on the outer surface of the eyeball as a slight furrow, marking the line between the clear cornea and the sclera. (bvsalud.org)
  • Conjunctivitis is the inflammation of conjunctiva, a thin and delicate membrane that covers the eyeball and lines the eyelid. (biomin.net)
  • Conjunctivitis - commonly known as "pink eye" is the inflammation of the thin lining that covers the eyelid and eyeball called the conjunctiva. (rowancountync.gov)
  • Pink eye is an inflammation of the transparent membrane that lines the eyelid and eyeball. (thedailyguardian.com)
  • Dr Butt explained that conjunctivitis is an inflammation or infection of the transparent membrane, known as the conjunctiva, which lines the eyelid and covers the eyeball. (thedailyguardian.com)
  • Pink eye, or conjunctivitis, is a contagious eye condition caused by the inflammation and infection of the conjunctiva. (findatopdoc.com)
  • Allergic Conjunctivitis (AC) is a common eye disorder characterized by the inflammation in the tissue that lines the inside of eyelid and outside of the eyeball called conjunctiva . (delveinsight.com)
  • Malignant melanomas arising from nevi (they may arise from junctional and compound nevi) usually appear as a change (increasing nodularity, variegated pigmentation, bleeding, or inflammation) in known pigmented lesions of the conjunctiva. (medscape.com)
  • The American Academy of Ophthalmology has not identified sufficient evidence to support the safety or therapeutic value of this procedure,' the academy said in a statement, warning of complications including blindness from ocular infection or bleeding, bleeding beneath the conjunctiva, perforation of the eye and conjunctivitis. (go.com)
  • Conjunctivitis is an extremely common eye problem because the conjunctiva is continually exposed to micro-organisms. (biomin.net)
  • Forms the junction between the bulbar and palpebral conjunctivas: It is loose and flexible, allowing the free movement of the lids and eyeball. (wikipedia.org)
  • When the conjunctiva becomes irritated, the tiny blood vessels within the conjunctiva become larger, causing the eye to appear red or pink. (charlotteparent.com)
  • Patients have progressive cerebellar ataxia, dilation of the blood vessels in the conjunctiva and eyeballs, immunodeficiency, growth retardation and sexual immaturity. (lu.se)
  • Oftalmológicamente, se manifiesta al aparecer en la superficie externa del globo ocular como un surco ligero, delimitando la línea entre la córnea transparente y la esclerótica. (bvsalud.org)
  • When this occurs, the pupil constricts (miosis), and the iris becomes swollen and the conjunctiva reddened (bloodshot). (petplace.com)
  • After passing through the fluid in the eyeball, the light rays are focused on the retina. (northshore.org)
  • The retina (RET-nuh), the innermost of the three layers, lines the inside of the eyeball. (kidshealth.org)
  • The retina (the soft, light-sensitive layer of tissue that lines the back of the eyeball wall) is made up of millions of light receptors called rods and cones . (kidshealth.org)
  • Is your eyeball swollen, bulging, or puffy? (healthline.com)
  • If your swollen eyeball isn't due to trauma or doesn't go away in 24 to 48 hours after basic home care, you may have one of the conditions discussed above. (healthline.com)
  • The orbit and extraocular muscles allow for the smooth movement of the eyeball. (wikipedia.org)
  • Six extraocular muscles surround the eyeball and act like the strings on a puppet, moving the eye in different directions. (kidshealth.org)
  • The orbit helps in smooth rotation of the eyeball. (wikipedia.org)
  • The eyeball sits in the eye socket (also called the orbit) in the skull, where it is surrounded by bone. (kidshealth.org)
  • In addition to spreading by lymphatics and the bloodstream, conjunctival melanoma can undergo direct extension to the eyeball and orbit. (medscape.com)
  • If present, signs of increased intraorbital pressure such as blurred vision, limited eye movement, protrusion of the eyeball, and swelling or blistering of the conjunctiva (the covering of the white of the eye) point to the more serious condition of orbital cellulitis. (dailyherald.com)
  • Hyper - This is a vertical strabismus in which the eyeball deviates superiorly. (nih.gov)
  • The conjunctiva (thin tissue on top of the white part of the eye) overlying an epibulbar dermoid may be thick. (aapos.org)
  • They are attached to the conjunctiva, the thin layer of tissue that covers the white of the eye. (aapos.org)
  • Neuro-ophthalmic examination showed slight bulging of the right eyeball, and multiple spiral conjunctival vessels were visible on the surface of the right conjunctiva, suggesting a right carotid cavernous fistula. (bvsalud.org)
  • Like the film in a camera, it lines the inner surface of the eyeball. (cancer.net)
  • Proptosis of the eyeball secondary to orbital hemorrhage is a sign of scurvy. (medscape.com)
  • In eyelid reconstruction, it is more practical to consider the repair of the anterior and posterior lamellae, with the anterior lamella being the skin and orbicularis, and the posterior lamella being the tarsus and conjunctiva. (medscape.com)
  • Hypo - This is a vertical strabismus in which the eyeball deviates inferiorly. (nih.gov)
  • More importantly, MIGS devices do not typically disturb the conjunctiva (the membranous covering of the eyeball), therefore it does not alter the success rate of subsequent glaucoma filtration surgery, if required. (glaucoma.org.au)
  • These lymph nodes filter lymph from the submaxillary (salivary) gland, tongue, mouth, lips, cheek, nose and conjunctiva (the membrane that covers the eyeball and underside of the eyelid). (healthline.com)
  • The conjunctiva is the clear membrane covering your outer eye. (healthline.com)
  • The space in the center of the eyeball is filled with a clear jelly-like material called the vitreous (VIH-tree-us) humor. (kidshealth.org)
  • In severe cases, the conjunctiva - the tissue surrounding the eye - can become so inflamed that it becomes hard to even see your cat's eyeball. (petinsurancereview.com)
  • Extreme UV levels can kill the outer cells of the eyeball and cause severe pain until new cells grow (WHO 2014). (ewg.org)
  • The upper half of a sagittal section through the front of the eyeball. (wikipedia.org)
  • What is cobblestoning of the upper conjunctiva? (meltingpointathens.com)
  • Epibulbar dermoids are usually found under the outer part of the upper eyelid in the space where the eyeball meets the eyelid. (aapos.org)