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Visual or vision impairment (VI or VIP) is the partial or total inability of visual perception. In the absence of treatment such as corrective eyewear, assistive devices, and medical treatment, visual impairment may cause the individual difficulties with normal daily tasks, including reading and walking. [6] The terms low vision and blindness ...
Low vision visual acuity examinations are done using the LogMAR chart. The advantage that this presents with is that it allows for more accurate measures of the individual's vision to be recorded. Other tests done and their significance are as follows: Amsler's grid test - to locate scotomas on the visual field of the individual.
Sophie Dunn. Emma Dunn. (2000-04-30) April 30, 2000 (age 24) Texas. Known for. World's only deafblind triplets. The Dunn triplets, Zoe, Sophie and Emma (born April 30, 2000), are the world's only known deafblind triplets. They are all deaf and blind because of their extremely premature birth and first few months of life.
1 in 4,000 people [1] Retinitis pigmentosa (RP) is a genetic disorder of the eyes that causes loss of vision. [1] Symptoms include trouble seeing at night and decreasing peripheral vision (side and upper or lower visual field). [1] As peripheral vision worsens, people may experience "tunnel vision". [1] Complete blindness is uncommon. [2]
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Advances in technology have brought devices that help Stargardt patients who are losing their vision maintain their independence. Low-vision aids can range from hand lenses to electronic devices and can allow those losing their vision to be able to carry out daily activities. [19] Some patients may even opt for in-person services.