corneal lesion scraping

Corneal lesions are an effective method for screening pathogens in simple, rapid, and outpatient settings. Corneal lesions are examined in all cases of infectious keratitis such as corneal ulcers. The bacterial keratitis can be stained by scraping to distinguish Gram-positive or Gram-negative bacteria. Can be used as a reference indicator for clinical medication, so as not to delay the disease. Basic Information Specialist Category: Ophthalmic Examination Category: Pathogenic Microbiological Examination Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Normal value: no Above normal: negative: The result of the negative test is generally normal. Positive: A positive test value indicates that the subject may have a parasitic infection. Tips: Pay attention to eye hygiene, do not use eye drugs that are too irritating. Normal value The type and proportion of the eye flora are normal, and the human body is in a state of dynamic balance and is negative. Clinical significance Corneal lesion smear examination for acanthamoeba keratitis, lesion tissue wet film examination can observe the acanthamoe cyst, is an important means of diagnosis and discovery of Acanthamoeba keratitis. Abnormal results of purulent keratitis, corneal perforation and endophthalmitis, herpes simplex keratitis, fungal keratitis. The people who need to be examined have suppurative keratitis, corneal perforation and endophthalmitis, herpes simplex keratitis, fungal keratitis and other symptoms. Precautions Contraindications before examination: pay attention to eye hygiene, do not use eye medications that are too irritating. Requirements for inspection: Actively cooperate with the doctor. Inspection process For fungal keratitis, a small amount of diseased tissue is taken from the ulcer for direct microscopic examination of 10% KOH wet film. If the hyphae is found, the fungal keratitis can be quickly diagnosed. The positive rate of microscopic examination in many large specialized hospitals is 50%-90. %between. Not suitable for the crowd Subjects with general eye damage are not suitable for this test. Adverse reactions and risks Risk of infection: There is a risk of infection with instruments that are not cleaned with pathology.

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