ocular herpes simplex An INFECTION of the eyes with HERPES SIMPLEX VIRUS 1 (HSV-1), which causes cold sores, or herpes simplex virus 2 (HSV-2), which causes GENITAL HERPES. The virus spreads to the eye to cause the initial infection via contamination from contact with an existing herpes sore elsewhere on the body. Ocular herpes simplex […]
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The eyes : ocular herpes simplex , ocular herpes zoster , ophthalmic examination , Physical Examination , Visual Acuity and Visual Field , Slit Lamp Examination , Tonometry , ophthalmoscopy , optical coherence tomography (OCT) , optic nerve , optic nerve atrophy and orbital cellulitis .
ocular herpes simplex An INFECTION of the eyes with HERPES SIMPLEX VIRUS 1 (HSV-1), which causes cold sores, or herpes simplex virus 2 (HSV-2), which causes GENITAL HERPES. The virus spreads to the eye to cause the initial infection via contamination from contact with an existing herpes sore elsewhere on the body. Ocular herpes simplex […]
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The eyes : night blindness and nystagmus .
nearsightedness See MYOPIA. night blindness Impaired dark adaptation resulting from slowed photochemical reactions in the rods, the specialized cells of the RETINA that perceive contrast and detect visual images in low light. Night blindness becomes increasingly common after middle age. The person with night blindness may be unable to see at all in dim light […]
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The eyes : night blindness and nystagmus .
nearsightedness See MYOPIA. night blindness Impaired dark adaptation resulting from slowed photochemical reactions in the rods, the specialized cells of the RETINA that perceive contrast and detect visual images in low light. Night blindness becomes increasingly common after middle age. The person with night blindness may be unable to see at all in dim light […]
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The eyes : lens , mydriasis and myopia .
lens The primary focusing structure of the EYE, located in the center at the front of the eye. The lens is transparent, convex (rounded outward on each side), round, and flexible. A thin membrane encloses the lens. Tiny muscles at the front edges of its sides, the ciliary muscles, contract to flatten the lens and […]
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The eyes : keratitis and keratoconus
keratitis INFLAMMATION of the CORNEA, usually the result of an INFECTION. The cause of the infection is more commonly viral, such as HERPES SIMPLEX or HERPES ZOSTER, than bacterial. Symptoms of infectious keratitis include • redness and irritation of the EYE and conjunctiva (inner eyelids) • discomfort or PAIN • excessive tearing • difficulty keeping […]
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The eyes : keratitis and keratoconus
keratitis INFLAMMATION of the CORNEA, usually the result of an INFECTION. The cause of the infection is more commonly viral, such as HERPES SIMPLEX or HERPES ZOSTER, than bacterial. Symptoms of infectious keratitis include • redness and irritation of the EYE and conjunctiva (inner eyelids) • discomfort or PAIN • excessive tearing • difficulty keeping […]
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The eyes : lens , mydriasis and myopia .
lens The primary focusing structure of the EYE, located in the center at the front of the eye. The lens is transparent, convex (rounded outward on each side), round, and flexible. A thin membrane encloses the lens. Tiny muscles at the front edges of its sides, the ciliary muscles, contract to flatten the lens and […]
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The eyes : intraocular pressure , iritis and ischemic optic neuropathy .
intraocular pressure The pressure within the EYE that maintains the eye’s form and structure. Nor- mal intraocular pressure in an adult is 12 to 22 millimeters of mercury (mm Hg). A device called a tonometer measures intraocular pressure, either through light contact against the anesthetized eye or via the force of resistance to a puff […]
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The eyes : intraocular pressure , iritis and ischemic optic neuropathy .
intraocular pressure The pressure within the EYE that maintains the eye’s form and structure. Nor- mal intraocular pressure in an adult is 12 to 22 millimeters of mercury (mm Hg). A device called a tonometer measures intraocular pressure, either through light contact against the anesthetized eye or via the force of resistance to a puff […]
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