0_Wizard
Being visual imparired means you have a decreased ability to see.
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses.
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Visual impairment
chosen_topic_0_Visual_impairment
Visual impairment
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.
Color blindness
Color blindness, also known as color vision deficiency, is the decreased ability to see color or differences in color. Color blindness can make some educational activities difficult. Buying fruit, picking clothing, and reading traffic lights can be more challenging, for example. Problems, however, are generally minor and most people adapt. People with total color blindness, however, may also have decreased visual acuity and be uncomfortable in bright environments. The most common cause of color blindness is an inherited fault in the development of one or more of the three sets of color sensing cones in the eye.
Prenatal memory
Prenatal memory, also called fetal memory, is important for the development of memory in humans. Many factors can impair fetal memory and its functions, primarily maternal actions. There are multiple techniques available not only to demonstrate the existence of fetal memory but to measure it. Fetal memory is vulnerable to certain diseases so much so that exposure can permanently damage the development of the fetus and even terminate the pregnancy by aborting the fetus. Maternal nutrition and the avoidance of drugs, alcohol and other substances during all nine months of pregnancy (especially the critical period when the nervous system is developing) is important to the development of the fetus and its memory systems.
Univ. Río Matanza Aeroclub
Univ. Río Matanza Aeroclub (, ) is a public use airport located near Matanza, Buenos Aires, Argentina.
Horse colic
Colic in horses is defined as abdominal pain, but it is a clinical sign rather than a diagnosis. The term colic can encompass all forms of gastrointestinal conditions which cause pain as well as other causes of abdominal pain not involving the gastrointestinal tract. The most common forms of colic are gastrointestinal in nature and are most often related to colonic disturbance. There are a variety of different causes of colic, some of which can prove fatal without surgical intervention. Colic surgery is usually an expensive procedure as it is major abdominal surgery, often with intensive aftercare.
Cross-race effect
The cross-race effect (sometimes called cross-race bias, other-race bias or own-race bias) is the tendency to more easily recognize faces of the race that one is most familiar with (which is most often one's own race). A study was made which examined 271 real court cases. In photographic line-ups, 231 witnesses participated in cross-race versus same-race identification. In cross-race lineups, only 45% were correctly identified versus 60% for same-race identifications. In social psychology, the cross-race effect is described as the "ingroup advantage". In other fields, the effect can be seen as a specific form of the "ingroup advantage" since it is only applied in interracial or inter-ethnic situations, whereas "ingroup advantage" can refer to mono-ethnic situations as well.
Phantom contour
A phantom contour is a type of illusory contour. Most illusory contours are seen in still images, such as the and the . A phantom contour, however, is perceived in the presence of moving or flickering images with contrast reversal. The rapid, continuous alternation between opposing, but correlated, adjacent images creates the perception of a contour that is not physically present in the still images. One example of this illusion involves stimuli consisting of two similar frames, with uniform grey backgrounds: in one frame, the top half contains white dots and the bottom half contains black dots.
1_Apprentice
I wear glasses, so I certainly understand what visually impaired means!  I can't see much without them.
0_Wizard
Is your vision worse than 20/40 or 20/60?
Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60.
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Visual impairment
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Banchory
Banchory (, from Scottish Gaelic: "Beannchar") is a burgh or town in Aberdeenshire, Scotland. It is about 18 miles west of Aberdeen, near where the Feugh River meets the River Dee. The name is thought to be derived from an early Christian settlement founded by St Ternan. It is claimed that Ternan was a follower of St Ninian. Tradition has it that he established his settlement on the banks of the River Dee on what was later to become the kirkyard of the medieval parish of Banchory-Ternan. The village and parish retained the name until the 1970s. The original Gaelic form is almost identical to that of Bangor, of similar meaning, and also the site of a monastery, in Northern Ireland.
Ternan
Saint Ternan (fifth century?) is venerated as the "Bishop of the Picts." Not much is known of his life. He may have been consecrated by St. Palladius. Some scholars believe that he may have been a monk at Culross, which had been founded by St. Serf, and that he was a contemporary of Serf. Others state that he was a follower of St. Ninian. Ternan, is believed to have been born in Fordoun in Angus about AD 440. He established a small monastery on the north side of the River Dee near the current graveyard in what is now the town of Banchory. As well as preaching the Christian gospel, he and his followers taught the local people farming, arts and crafts.
Kincardine O'Neil Hospital, Aberdeenshire
Kincardine O'Neil Hospital was founded in the 13th century in the village of Kincardine O'Neil in Scotland. Almost certainly it served as a traveler's inn and as a hospice for elderly and "poor" men. The hospital was situated adjacent to a bridge over the River Dee and may have been a chantry for the early Bishops of Mortlach (See Bishop of Aberdeen). Remains of a building can be seen abutted to the Auld Parish Church in Kincardine O'Neil. This building may have been a later or second hospital. It is also possible that these ruins may have been part of St Erchard's Church - a.k.a. St Marys' or the Auld Kirk.
Visual impairment
Visual impairment, also known as vision impairment or vision loss, is a decreased ability to see to a degree that causes problems not fixable by usual means, such as glasses. Some also include those who have a decreased ability to see because they do not have access to glasses or contact lenses. Visual impairment is often defined as a best corrected visual acuity of worse than either 20/40 or 20/60. The term blindness is used for complete or nearly complete vision loss. Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.
Parks–Bielschowsky three-step test
The Parks–Bielschowsky three-step test, also known as Park's three-step test or Bielschowsky head tilt test, is a method used to isolate the paretic extraocular muscle, particularly superior oblique muscle and trochlear nerve (IVth cranial nerve), in acquired vertical double vision. It was originally described by Marshall M. Parks. When a healthy individual tilts their head, the superior oblique and superior rectus muscles of the eye closest to the shoulder keep the eye level. The inferior oblique and inferior rectus muscles keep the other eye level. In patients with superior oblique palsy, the superior rectus muscle’s action is not counteracted by the superior oblique muscles.
Visual acuity
Visual acuity (VA) commonly refers to the clarity of vision. Visual acuity is dependent on optical and neural factors, i.e., (i) the sharpness of the retinal focus within the eye, (ii) the health and functioning of the retina, and (iii) the sensitivity of the interpretative faculty of the brain. A common cause of low visual acuity is refractive error (ametropia), or errors in how the light is refracted in the eyeball. Causes of refractive errors include aberrations in the shape of the eyeball, the shape of the cornea, and reduced flexibility of the lens. Too high or too low refractive error (in relation to the length of the eyeball) is the cause of nearsightedness (myopia) or farsightedness (hyperopia) (normal refractive status is referred to as emmetropia).
History of Australia
The history of Australia refers to the history of the area and people of the Commonwealth of Australia and its preceding Indigenous and colonial societies. Aboriginal Australians arrived on the Australian mainland by sea from Maritime Southeast Asia between 40,000 and 70,000 years ago. The artistic, musical and spiritual traditions they established are among the longest surviving such traditions in human history. The first known landing in Australia by Europeans was by Dutch navigator Willem Janszoon in 1606. Twenty-nine other Dutch navigators explored the western and southern coasts in the 17th century, and dubbed the continent New Holland.
1_Apprentice
To be honest, I am not sure.  What do the numbers mean?