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One well-known example is the prophet Tiresias, whose blindness is ascribed to various causes. According to one story, it was a punishment for revealing the secrets of the gods; according to another, he was struck blind after accidentally witnessing Athena bathing; in a third, he was blinded by Hera after taking Zeus 's side in a dispute. [ 3 ]
The number of individuals blind from trachoma has decreased in the past 10 years from 6 million to 1.3 million, putting it in seventh place on the list of causes of blindness worldwide. Central corneal ulceration is also a significant cause of monocular blindness worldwide, accounting for an estimated 850,000 cases of corneal blindness every ...
Hysterical blindness (nowadays known as conversion disorder), the appearance of neurological symptoms without a neurological cause. Inattentional blindness or perceptual blindness, failing to notice some stimulus that is in plain sight. Motion blindness, a neuropsychological disorder causing an inability to perceive motion.
Diabetes, for example, is the leading cause of new cases of blindness in those aged 20–74, with ocular manifestations such as diabetic retinopathy and macular edema affecting up to 80% of those who have had the disease for 15 years or more.
Some examples include: The Miracle at Mont St Michel in the Luttrell Psalter, held in the British Library. [4] The image displays a barefoot blind man in a long pale yellow tunic carrying a staff. [1] Healing a blind man in the Maastricht Hours, held in the British Library. [5] The blind man wears a loose brown tunic while being led by a white ...
The following criteria are required to classify an event as an inattentional blindness episode: 1) the observer must fail to notice a visual object or event, 2) the object or event must be fully visible, 3) observers must be able to readily identify the object if they are consciously perceiving it, [3] and 4) the event must be unexpected and the failure to see the object or event must be due ...
Helen Keller was a well-known example of an educated deafblind individual. [5] To further her lifelong mission to help the deafblind community to expand its horizons and gain opportunities, the Helen Keller National Center for Deaf-Blind Youths and Adults (also called the Helen Keller National Center or HKNC), with a residential training ...
The word hemeralopia comes from the Greek ημέρα hemera, "day", and αλαός alaos, "blindness". Hemera was the Greek goddess of day, and Nyx was the goddess of night. Hemeralopia has been used to describe night blindness rather than day blindness by many non-English-speaking doctors, causing confusion. [1]