Topical corticosteroids can be classified into four groups on the basis of their anti-inflammatory activity: mild, moderate, potent, and very potent. The higher their potency, the greater their effects, including their adverse effects, such as the risk of cataracts and glaucoma associated with repeated application near the eyes or on the eyelids (1-4). Preserve's Preventing the Preventable Programme has received a number of reports of confusion between, and inappropriate use of, topical corticosteroids (a).
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