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The Flip's 3.2-inch main screen is a bit larger than most, and its keypad boasts large, easy-to-ready buttons. I particularly like the clearly labeled "Call" and "End" buttons, colored green and ...
Iris recognition biometric systems apply mathematical pattern-recognition techniques to images of the irises of an individual's eyes.. Iris recognition is an automated method of biometric identification that uses mathematical pattern-recognition techniques on video images of one or both of the irises of an individual's eyes, whose complex patterns are unique, stable, and can be seen from some ...
Besides fingerprint and facial recognition, eye scanning is one of the most highly mentioned biometric modalities these days. As the security market rapidly increases, it is expected that eye ...
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An artificial iris is an intraocular implant (implant inside the eye) that is used as both a cosmetic and to treat those with aniridia (missing or damaged irises) or other eye trauma. [1] People with this condition experience photophobia, or increased sensitivity to light. [2] The artificial iris, made from silicone, acts as a replacement iris ...
Lisch nodule, also known as iris hamartoma, is a pigmented hamartomatous nodular aggregate of dendritic melanocytes affecting the iris, [1] named after Austrian ophthalmologist Karl Lisch (1907–1999), who first recognized them in 1937.
The iris consists of two layers: the front pigmented fibrovascular layer known as a stroma and, behind the stroma, pigmented epithelial cells.. The stroma is connected to a sphincter muscle (sphincter pupillae), which contracts the pupil in a circular motion, and a set of dilator muscles (dilator pupillae), which pull the iris radially to enlarge the pupil, pulling it in folds.
Immune reconstitution inflammatory syndrome (IRIS) is a condition seen in some cases of HIV/AIDS or immunosuppression, in which the immune system begins to recover, but then responds to a previously acquired opportunistic infection with an overwhelming inflammatory response that paradoxically makes the symptoms of infection worse.