KONJUNGTIVITIS VERNAL PDF

The first description of vernal keratoconjunctivitis VKC was by Arlt in when he reported 3 cases of perilimbal swelling in young patients. The association with springtime vernal means spring reflects the seasonal increase in signs and symptoms of the condition, particularly the high prevalence in hot, arid environments; affected individuals have disease flares frequently during spring months, but can have signs and symptoms year round. VKC is a disease showing great racial and geographical variation. It is most common and most severe in hot, arid environments such as the Mediterranean basin, West Africa, and the Indian subcontinent.

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Vernal keratoconjunctivitis VKC is a recurrent bilateral disorder in which both IgE- and cell-mediated immune mechanisms play important roles. It primarily affects boys and onset is generally from about the age of 5 years onwards mean age 7 years. Ninety-five per cent of cases remit by the late teens although many of the remainder develop atopic keratoconjunctivitis. VKC is rare in temperate regions but relatively common in warm dry climates such as the Mediterranean, sub-Saharan Africa, and the Middle East.

VKC often occurs on a seasonal basis, with a peak incidence over late spring and summer, although there may be mild perennial symptoms.

Classification 1 Palpebral VKC primary involves the upper tarsal conjunctiva. It may be associated with significant corneal disease as a result of the close apposition between the inflamed conjunctiva and the corneal epithelium. Diagnosis The diagnosis is clinical and investigations are generally not indicated. Increased blinking is common. Mucus deposition between giant papillae Fig. Decreased disease activity is characterized by milder conjunctival injection and decreased mucus production Fig.

In tropical regions limbal disease may be very severe Fig. This development is serious and warrants urgent attention to prevent secondary bacterial infection. It is characterized by a paralimbal band of superficial scarring resembling arcus senilis, adjacent to a previously inflamed segment of the limbus Fig.

Keratoconus and other forms of corneal ectasia are more common in VKC. Herpes simplex keratitis is more common than average, though less so than in atopic keratoconjunctivitis AKC.

It can be aggressive and is occasionally bilateral. B Fig. A Superior punctate erosions and sheets of mucus; B macroerosion; C early plaque formation; D plaque and shield ulcer; E oval subepithelial scarring; F pseudogerontoxon and limbal papillae.

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Report this Document. Flag for Inappropriate Content. Download Now. Related titles. Carousel Previous Carousel Next. Allergic rhinitis and its effect on middle ear pressure. Jump to Page. Search inside document. Pathogenesis Vernal keratoconjunctivitis VKC is a recurrent bilateral disorder in which both IgE- and cell-mediated immune mechanisms play important roles. Documents Similar To Konjungtivitis Vernal.

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Vernal Keratoconjunctivitis

Vernal keratoconjunctivitis VKC is a recurrent bilateral disorder in which both IgE- and cell-mediated immune mechanisms play important roles. It primarily affects boys and onset is generally from about the age of 5 years onwards mean age 7 years. Ninety-five per cent of cases remit by the late teens although many of the remainder develop atopic keratoconjunctivitis. VKC is rare in temperate regions but relatively common in warm dry climates such as the Mediterranean, sub-Saharan Africa, and the Middle East. VKC often occurs on a seasonal basis, with a peak incidence over late spring and summer, although there may be mild perennial symptoms. Classification 1 Palpebral VKC primary involves the upper tarsal conjunctiva.

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Vernal keratoconjunctivitis

Vernal keratoconjunctivitis VKC is a recurrent, bilateral, and self-limiting inflammation of conjunctiva , having a periodic seasonal incidence. Corneal involvement in VKC may be primary or secondary due to extension of limbal lesions. Vernal keratopathy includes 5 types of lesions. VKC is thought to be an allergic disorder in which IgE mediated mechanism play a role. Such patients often give family history of other atopic diseases such as hay fever , asthma or eczema , and their peripheral blood shows eosinophilia and increased serum IgE levels. Based on severity, authors have classified VKC into clinical grades: [3]. From Wikipedia, the free encyclopedia.

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Konjungtivitis Vernal

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