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Topic: Keratitis

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Ultraviolet light

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	Keratitis - Children's Hospital of Philadelphia
		Keratitis is an inflammation or swelling of the cornea of the eye.
		Keratitis is medical emergency because extensive involvement may lead to blindness.
		Keratitis is usually diagnosed based on a complete medical history and physical examination of your child.
	www.chop.edu /consumer/your_child/condition_section_index.jsp?id=-8503 (191 words)

	Keratitis \| World of Health
		Keratitis is an inflammation of the cornea, the transparent membrane that covers the colored part of the eye (iris) and pupil of the eye.
		Herpes simplex keratitis is a major cause of adult eye disease, and may lead to chronic inflammation of the cornea, development of tiny blood vessels in the eye, scarring, blindness, or glaucoma.
		Superficial punctate keratitis is often associated with the type of viruses that cause the common cold; it's characterized by the destruction of pinpoint areas in the outer layer of the cornea.
	www.bookrags.com /other/health/keratitis-woh.html (895 words)

	VisionWeb
		Keratitis (KEHR-ah-TI-tis) is an inflammation or irritation of the cornea, often characterized by a cloudiness or loss of luster in this transparent membrane covering the iris and pupil.
		Subsequent infections, called "dendritic keratitis," are characterized by a pattern of lesions that resemble the veins of a leaf.
		Bacterial keratitis is caused by bacteria, often resulting from improper care and cleaning of contact lenses or wearing soft daily-wear lenses overnight (which increases risk about 10-fold, according to some research).
	www.visionweb.com /content/consumers/dev_consumerarticles.jsp?RID=93 (656 words)

	What Causes Keratitis?
		Keratitis refers to inflammations, infections or deterioration of the corneas.
		Some viruses indicated in keratitis are Herpes Simplex 1 and 2, rubella, measles, and mumps.
		Sometimes, keratitis develops as a reaction to certain antibiotics, or when antibiotics cause harmful fungi to develop.
	www.wisegeek.com /what-causes-keratitis.htm (367 words)

	Keratitis (Corneal Ulcers)
		Keratitis is an inflammation or irritation of the cornea (the transparent membrane covering the iris and pupil) characterized by typical symptoms of red eye, foreign body sensation, pain, sensitivity to light, watery eyes, and blurred vision.
		While treatable, this condition is the most common cause of infection-caused corneal blindness in the U.S. There are various types of keratitis, but most commonly it occurs after an injury to the cornea, dryness or inflammation of the ocular surface or contact lens wear.
		The causes of the keratitis are very diverse therefore the therapy varies on the basis of diagnosis.
	www.hopkinsmedicine.org /wilmer/Conditions/keratitis.html (177 words)

	Keratitis
		Keratitis is an inflammation of the cornea—the domed, transparent circular portion of the front of the eyeball that lies over the pupil.
		There are several types, including superficial punctate keratitis, in which the cells on the surface of the cornea die; interstitial keratitis, a condition present at birth; herpes simplex viral keratitis, caused by the sexually transmitted herpes virus; and traumatic keratitis, which results when a corneal injury leaves scar tissue.
		Keratitis brought on by a bacterial infection is usually treated with antibiotic eyedrops.
	www.healthsquare.com /mc/fgmc9035.htm (759 words)

	MERSI Ocular Immunology and Uveitis Foundation\| Medical Professionals \| Articles \| Case Reports
		Candida is the principal cause of keratitis associated with therapeutic contact lenses; and filamentous fungi are the ones associated with refractive contact lens wear.
		Fungal keratitis is a surgical disease in most parts of the world because of the inability to obtain isolation of the fungus and the delayed initiating medical treatment.
		Fungal Keratitis should be kept in mind in the differential diagnosis of keratitis, especially if there is a risk factor; because the devastating ocular consequences that can occur if the diagnosis and treatment is not made promptly.
	www.uveitis.org /medical/articles/case/fungal_keratitis.html (1561 words)

	Managing microbial keratitis (Site not responding. Last check: 2007-10-26)
		Microbial keratitis results from the interaction of a broad spectrum of pathogens and a diverse range of host responses.
		Microbial keratitis is rare in the absence of predisposing factors which include (1) contact lens wear, (2) ocular surface disease, eg (a) herpetic keratitis, (b) corneal-anaesthesia, (c) exposure and (d) bullous keratopathy and (3) trauma.
		However, fluoroquinolones may not adequately treat streptococcal keratitis and comination therapy of a quinolone with a fortified cephalosporin may be advisable in patients with ocular surface disease or in children in whom streptococcal infection is more common.
	www.site4sight.org.uk /Quality/RGov/Guidelines/Keratitis.htm (1350 words)

	InteliHealth:
		Keratitis is an inflammation of the cornea, the outermost part of the eye.
		Other causes of keratitis include vitamin A deficiency and rheumatic diseases (such as rheumatoid arthritis and Sjögren's syndrome) in which dryness or inflammation lead to irritation and injury of the cornea.
		Keratitis may be brief if it is caused by an infection that is fought off by the body (as with many viral infections) or by antibiotics (for bacterial or fungal infection).
	www.intelihealth.com /IH/ihtIH/WSIHW000/9339/9942.html (897 words)

	Interstitial keratitis
		Interstitial keratitis involves inflammation of the connective tissue structure of the cornea (the clear window on the front of the eye), which can lead to vision loss.
		Interstitial keratitis is a serious condition in which blood vessels grow into the cornea and can cause loss of the normal transparency.
		However, interstitial keratitis is the most common cause of blindness in the world, with cases caused by trachoma and onchocerciasis (river blindness) being very common in parts of Asia and Africa.
	www.pennhealth.com /ency/article/001609.htm (460 words)

	Logical Images - Resources - Fusarium Keratitis Info, ReNu Contact Lens Fungus (Site not responding. Last check: 2007-10-26)
		Fungal keratitis due to Fusarium species was reported in clusters of patients in Asia in early 2006.
		Fungal keratitis in general causes single or multiple corneal infiltrates with gray-white feathery edges and may have associated satellite lesions.
		Interstitial keratitis is uncommon and presents with prominent corneal vascularization.
	www.logicalimages.com /resourcesFusariumKeratitis.htm (722 words)

	KERATITIS IN KENYA (Site not responding. Last check: 2007-10-26)
		Purpose: To determine etiology of keratitis in Kenya as well as patients'characteristics and the spectrum of causative organisms with their resistance patterns.
		Material and Methods: A total of 90 cases of keratitis was studied regarding the patients' age, sex and occupation, circumstances of infection and prior treatment.
		gonorrhoeae are the commonest pathogens causing keratitis in Kenya.
	www.dog.org /engl/abstract97/K405.html (304 words)

	Herpes Simplex Keratitis
		The keratitis caused by the herpes simplex virus (HSV) typically presents as a unilateral "red eye" with a variable degree of pain or ocular irritation.
		Photophobia and epiphora are common; however, vision may or may not be affected, depending upon the location and extent of the corneal lesion.
		The cotton-wisp test for corneal sensitivity is invariably positive in cases of HSV keratitis; use it whenever in doubt.
	www.revoptom.com /HANDBOOK/SECT31a.HTM (650 words)

	Eosinophilic Keratitis
		An area of eosinophilic keratitis on the dorsal aspect of the cornea of a cat (arrow).
		Eosinophilic keratitis and EGC may be similar diseases due to similar pathologic (biopsy) findings and response to treatment.
		Diagnosis of eosinophilic keratitis is by cytological examination of a scraping of the cornea and conjunctiva.
	www.animal-eye-specialists.com /ek.html (688 words)

	Keratitis \| Principal Health News
		Recurrences may be brought on by stress, fatigue, or ultraviolet light (UV) exposure (e.g., skiing or boating increase the exposure of the eye to sunlight; the sunlight reflects off of the surfaces).
		Also called parenchymatous keratitis, interstitial keratitis is a chronic inflammation of tissue deep within the cornea.
		Interstitial keratitis affects both eyes and usually occurs as a complication of congenital or acquired syphilis.
	www.principalhealthnews.com /topic/topic100587048 (1281 words)

	Handbook of Ocular Disease Management - Filamentary Keratitis
		In patients with microbial keratitis, increased ulceration and even corneal perforation may ensue if the organism is resistant to the antibiotic.
		Filamentary keratitis may take weeks or even months to resolve, depending on the etiology and the aggressiveness of therapy.
		Remember that filamentary keratitis is not a disease per se, but rather a sign of a severe ocular surface disorder.
	www.revoptom.com /HANDBOOK/oct02_sec3_4.htm (716 words)

	eMedicine - Keratitis, Fungal : Article by George Alexandrakis, MD (Site not responding. Last check: 2007-10-26)
		This increased occurrence of fungal keratitis is a result of the frequent use of topical corticosteroids and antibacterial agents in treating patients with keratitis, the rise in the number of patients who are immunocompromised, and better laboratory diagnostic techniques that aid in its diagnosis.
		The laboratory diagnosis of fungal keratitis may be problematic because of the very small sample obtained by scraping the corneal ulcer.
		When corneal smears and cultures are negative and the keratitis is not responding to empiric therapy, then a diagnostic superficial keratectomy or a corneal biopsy may be necessary to establish a diagnosis.
	www.emedicine.com /oph/topic99.htm (3293 words)

	Eosinophilic Keratitis
		He has also noted cats treated successfully for herpetic keratitis subsequently developing eosinophilic keratitis, and he questions that the chronic history of corneal irritation and ulceration presented in cases of eosinophilic keratitis may be suggestive of previous herpetic keratitis.
		The typical clinical presentation of cats with eosinophilic keratitis is a proliferative white to pink plaque affecting a variable portion of the cornea, usually beginning at the temporal limbus but the nasal limbus may also be affected.
		The initial reported case of eosinophilic keratitis was tentatively diagnosed as corneal neoplasia, and the mass was removed by keratectomy.
	www.eyevet.info /eosinker.html (748 words)

	ocular herpes
		The infection may spread deeper into the cornea and develop into a more severe infection called stromal keratitis, which causes the body's immune system to attack and destroy stromal cells.
		Stromal keratitis is more difficult to treat than less severe ocular herpes infections.
		Recurrent episodes of stromal keratitis can cause scarring of the cornea, which can lead to loss of vision and possibly blindness.
	www.caridon.com /ocular-herpes.html (275 words)

	Fusarium Keratitis General Information - FAQ \| CDC Infection Control in Healthcare
		Keratitis is an inflammation of the cornea, the front part of the eye.
		Eye doctors treating patients for keratitis caused by fungi are urged to report these infections to their state health department to aid in this investigation.
		If a patient presents with a microbial keratitis, consider that a fungal infection may be involved, especially if the patient wears contact lenses.
	www.cdc.gov /ncidod/dhqp/fungal_fusariumKeratitis.html (686 words)

	Eye Conditions > Exposure Keratitis -- EyeMDLink.com
		Exposure keratitis may occur in any condition in which the ocular surface is not properly lubricated and covered by the eyelids.
		This condition is characterized by pain or discomfort, blurred vision, and even permanent loss of vision in some cases due to corneal ulceration or the more dreaded perforation of the cornea.
		Immediate management of patients with exposure keratitis is based on lubrication with artificial tears or ointments and reduction of the exposure, either with shields or patching of the affected eye.
	www.eyemdlink.com /Condition.asp?ConditionID=178 (267 words)

	NGC - NGC Summary
		For severe keratitis (e.g., deep stromal involvement or a defect larger than 2 mm with extensive suppuration), a loading dose every 5 to 15 minutes for the first hour, followed by applications every 15 minutes to 1 hour around the clock, is recommended.
		Frequency of re-evaluation of the patient with bacterial keratitis depends on the extent of disease, but severe cases (e.g., deep stromal involvement or larger than 2 mm with extensive suppuration) initially should be followed at least daily until clinical improvement or stabilization is documented.
		The diagnosis and management of patients with bacterial keratitis require the clinical training and experience of an ophthalmologist because the disease has the potential to cause visual loss or blindness and because the ophthalmologist is familiar with medical conditions associated with bacterial keratitis.
	www.guideline.gov /summary/summary.aspx?ss=15&doc_id=8199&string= (3059 words)

	Acanthamoeba keratitis - General Practice Notebook (Site not responding. Last check: 2007-10-26)
		This is because these lenses have a philosophy of "low care" - however in practice often a "no care" policy is used by ill informed contact lens practioners and users.
		The keratitis is refractive to antibiotics but responds to Brolene drops.
		Acanthamoeba keratitis should be managed in a specialist unit.
	www.gpnotebook.co.uk /cache/389349400.htm (208 words)

	Keratitis - WrongDiagnosis.com
		An inflammation of the cornea, keratitis may result from bacterial, fungal, or viral infection.
		Keratitis, also known as inflammation of the cornea, may be acute or chronic, superficial or deep.
		Superficial keratitis is fairly common and may develop at any age.
	www.wrongdiagnosis.com /k/keratitis/intro.htm (668 words)

	Fungal Keratitis FAQ: American Academy of Ophthalmology (Site not responding. Last check: 2007-10-26)
		Fusarium keratitis is a rare but serious fungal infection of the cornea -- the clear, round dome covering the eye’s iris and pupil.
		Risk factors for fungal keratitis include trauma (usually where plant material gets into the eye), chronic or ongoing disease of the surface of the eye, compromised immune systems, and rarely, contact lens use.
		Keratitis is not transmitted from person to person.
	www.aao.org /public/keratitis_FAQ_041806.cfm (685 words)

	eMedicine - Keratitis, Herpes Simplex : Article by Jim C Wang, MD (Site not responding. Last check: 2007-10-26)
		However, herpetic keratitis in children almost always involves the corneal epithelium and is marked by a disproportionate risk of binocular disease, a high recurrence rate, and amblyopia as a complication.
		Infectious epithelial keratitis is characterized by corneal vesicles, dendritic ulcers, and geographic ulcers.
		Necrotizing stromal keratitis, characterized by dense stromal infiltrate, ulceration, and necrosis, is believed to result from viral replication in stromal keratocytes and severe host inflammatory response.
	www.emedicine.com /oph/topic100.htm (3513 words)

	acanthamoeba keratitis - Medical Dictionary
		Infection of the cornea by an ameboid protozoan which may cause corneal ulceration leading to blindness.
		The typical patient with Acanthamoeba keratitis is a young healthy individual who is either a contact
		The annualized incidence of Acanthamoeba keratitis is estimated as 0.14 per 100,000 individuals.
	www.dentalarticles.com /dictionary/acanthamoeba_keratitis.html (100 words)

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