Herbal Medicus
Surma Siah | Kohl | سرمہ
Surma Siah | Kohl | سرمہ
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The ultra-fine powder of Sang-e-Surma (Surma Stone), also known as Kohl, is used for various eye ailments either alone or in combination with other herbal or mineral ingredients. The earliest use of Surma is reported in Egypt about 3100 BC. Data from a number of studies conducted on Sang-e-Surma using modern analytical techniques have cleared the uncertainty that Surma stone is mainly composed of lead sulphide. Surma is reported to be used for impaired eyesight , ophthalmia, cataract, itching, redness, irritation, watering of eyes, shedding of eyelashes and in the initial stage of cataract. The use of lead based Surma is discouraged owing to reports of lead toxicity though the sun glare protection and antimicrobial effects of Surma have been established. Reports on lead toxicity by the application of Surma in eyes are conflicting. Appropriately planned studies are warranted to elaborate the toxic effects of lead based Surma/kohl in terms of detoxification of Sang-e-Surma, preclinical toxicity and clinical trial.
