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A history of trauma or use of contact lenses and flashlight examination that reveals irregular corneal surface suggest corneal ulcer. Exudate may be present on the cornea, and a hypopyon (accumulation of white cells in the anterior chamber) may appear as a white crescent moon that moves when the head is tilted.
Culture and sensitivity testing of corneal scrapings may identify the causative bacteria or fungus, and may indicate appropriate antibiotic or antifungal therapy.
Source: Professional Guide to Diseases (Eighth Edition), 2005
History of eye trauma or prolonged wearing of contact lenses and typical symptoms suggest corneal abrasion.
Examining the eye with a flashlight may reveal a foreign body on the cornea; the eyelid must be everted to check for a foreign body embedded under the lid.
Before beginning treatment, a test to determine visual acuity provides a medical baseline and a legal safeguard.
Source: Professional Guide to Diseases (Eighth Edition), 2005
A history of trauma or use of contact lenses and a flashlight examination that reveals an irregular corneal surface suggest corneal ulcer. Exudate may be present on the cornea, and a hypopyon (accumulation of white cells in the anterior chamber) may appear as a half-moon. Fluorescein dye, instilled in the conjunctival sac, delineates the outline of the ulcer. Culture and sensitivity testing of corneal scrapings, which may identify the causative bacteria or fungus, indicate appropriate antibiotic or antifungal therapy.
Source: Handbook of Diseases, 2003
A history of eye trauma or prolonged wearing of contact lenses as well as typical symptoms suggest corneal abrasion. Staining the cornea with fluorescein stain confirms the diagnosis: The injured area appears green when examined with a Wood’s lamp or black light. Slit-lamp examination discloses the depth of the abrasion.
Examining the eye with a flashlight may reveal a foreign body on the cornea; the eyelid must be everted to check for a foreign body embedded under the lid.
Before beginning treatment, a test to determine visual acuity provides a medical baseline and a legal safeguard.
Source: Handbook of Diseases, 2003
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