The eye in immunologic disease.
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Biomedical subjects
Publications and source records attributed to M H Friedlaender.
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Dansyl chloride, a skin setnsitizer when injected in complete Freund's adjuvant, induced marked tolerance and no sensitization when applied to the intact skin of guinea pigs. Application of this chemical to alymphatic skin islands failed to induce tolerance or sensitization. Lymnphatic connections between skin and regional lymph nodes were essential for the developmnent of ismmunologic toleance.
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A 28-year-old man with a previous history of Neissena infection presented with diminished vision, disc swelling, and panuveitis. Serologic tests revealed positive titers for both HIV and syphilis. Current epidemiology and treatment of such cases are discussed.
Conjunctivitis of allergic origin is associated with a diversity of clinical presentations. Common features include pronounced itching, a milky conjunctival appearance, a stringy or ropy discharge and papillary hypertrophy of the tarsal conjunctiva in severe cases, and a family history of allergy. The diagnosis should be based on thorough history-taking and careful ophthalmic examination, and, when necessary, confirmation by laboratory testing. An IgE-mediated immediate hypersensitivity mechanism is associated with most types of allergic conjunctivitis, although contact allergy is mediated by lymphocytes rather than antibody. Treatment is based on the diagnosis and severity of signs and symptoms. An array of medications is available to control symptoms, and the regimen of choice should be based on the response to milder forms of therapy and consideration of drug side effects.
The most common causes of ocular inflammation are allergic or infectious in origin. A presumptive diagnosis can often be made through a comprehensive patient history and evaluation of presenting signs and symptoms, although the constellation and intensity of clinical findings may vary. Patients with allergic conjunctivitis often have itchy, red eyes, whereas patients with bacterial conjunctivitis often give a history of morning crusting and difficulty opening the eyelids. The treatment of patients with allergic conjunctivitis includes avoiding the offending allergen and applying topical antihistamines, mast cell stabilizers, or nonsteroidal anti-inflammatory agents. Streptococcus pneumoniae and Haemophilus influenzae are responsible for most cases of bacterial conjunctivitis in children. Staphylococcus species is the predominant organism in adults. Therefore, the treatment of patients with bacterial conjunctivitis consists of an antimicrobial agent with a broad spectrum of activity against most susceptible pathogens. Other causes of inflammation need to be considered in patients with atypical clinical signs and symptoms and in patients who do not respond to presumptive therapy.