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  • Human eye with blue iris
  • Human eye with blue iris
  • Human eye with blue iris
  • Human eye with blue iris
  • Canine eye: a tan coloured iris.
  • Iris unguicularis Poir. Iridaceae. Algerian iris. Rhizomatous perennial. Distribution: NW Africa, E. Mediterranean It has scientifically-based potential. The rhizomes contain the chemical kaempferol which inhibits the enzyme alpha-glucosidase in the gut, reducing the rate of glucose absorption. This could be used to prevent the dangerous peaks of blood sugar that occur in diabetics and reduce eye and kidney complications. The unprocessed rhizome contains iridin, a toxic glycoside, which causes 'nausea, vomiting, diarrhoea and skin irritation'. Photographed in the Medicinal Garden of the Royal College of Physicians, London.
  • Human eye
  • Plate 8. Illustration of various eye diseases
  • Sclera (white part) of the human eye
  • Looking up from underneath a microscope
  • Melanoma of the iris
  • Bipolar Disorder
  • Iris Coloboma with intra-ocular lens.
  • New vessels on the iris.
  • A monk and a statue of Saint Patrick trying to prevent the devil from snatching the corpse of a witch from its grave. Watercolour by E. Bell, 1804.
  • A monk and a statue of Saint Patrick trying to prevent the devil from snatching the corpse of a witch from its grave. Watercolour by E. Bell, 1804.
  • A monk and a statue of Saint Patrick trying to prevent the devil from snatching the corpse of a witch from its grave. Watercolour by E. Bell, 1804.
  • A monk and a statue of Saint Patrick trying to prevent the devil from snatching the corpse of a witch from its grave. Watercolour by E. Bell, 1804.