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.
chosen_Visual_impairment_0
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.
chosen_Visual_impairment_0
Visual impairment
chosen_topic_0_Visual_impairment
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?
0_Wizard
I am not sure but do you have difficulties with driving, or reading?
Visual impairment may cause people difficulties with normal daily activities such as driving, reading, socializing, and walking.
chosen_Visual_impairment_0
Visual impairment
chosen_topic_0_Visual_impairment
Franklin B. Gowen
Franklin Benjamin Gowen (February 9, 1836 – December 13, 1889) served as president of the Philadelphia and Reading Railroad (commonly referred to as the Reading Railroad) in the 1870s/80s. He is identified with the undercover infiltration and subsequent court prosecutions of Molly Maguires, mine workers, saloonkeepers and low-level local political figures arraigned and tried for multiple acts of violence, including murders and attempted murders of coal mine operators, foremen and workers, and peace officers. Other aspects of Gowen's presidency that merit consideration include:  Franklin Benjamin Gowen was born in Mount Airy, Pennsylvania, now part of Philadelphia, the fifth child of an Irish Protestant immigrant, James Gowen, a successful grocer, and his wife, Mary (née Miller), who was of German American descent.
Center for Research, Evaluation and Awareness of Dyslexia
The Center for Research, Evaluation and Awareness of Dyslexia (Center for READing) is a university-based program at Pittsburg State University, Pittsburg, Kansas. It was established in 1996 to:   The Identification and Intervention Program (IIP) is based on two decades worth of research and is the oldest of the programs offered at the "CARRD". The purpose of the IIP is to identify children who are at-risk of developing a reading disability, also referred to as dyslexia, as soon as possible and then to provide those children with an appropriate remediation that will help them gain the fundamental skills needed to become competent readers.
Reading for special needs
Reading for special needs has become an area of interest as the understanding of reading has improved. Teaching children with special needs how to read was not historically pursued due to perspectives of a Reading Readiness model. This model assumes that a reader must learn to read in a hierarchical manner such that one skill must be mastered before learning the next skill (e.g., a child might be expected to learn the names of the letters in the alphabet in the correct order before being taught how to read his or her name). This approach often led to teaching sub-skills of reading in a decontextualized manner.
Learning disability
Learning disability is a classification that includes several areas of functioning in which a person has difficulty learning in a typical manner, usually caused by an unknown factor or factors. Given the "difficulty learning in a typical manner", this does not exclude the ability to learn in a different manner. Therefore, some people can be more accurately described as having a "Learning Difference", thus avoiding any misconception of being disabled with a lack of ability to learn and possible negative stereotyping. In the UK, the term "learning disability" generally refers to an intellectual disability, while difficulties such as dyslexia and dyspraxia are usually referred to as "learning difficulties".
Learning to read
Learning to read is the acquisition and practice of the skills necessary to understand the meaning behind printed words. For a fairly good reader, the skill of reading often feels simple, effortless, and automatic; however, the process of learning to read is complex and builds on cognitive, linguistic, and social skills developed from a very early age. Usually, in order to understand a text, it is necessary to understand the spoken language associated with that text. In this way, writing systems are distinguished form many other symbolic communication systems. Once established, writing systems on the whole change more slowly than their spoken counterparts, and often preserve features and expressions which are no longer current in the spoken language.
Dyslexia
Dyslexia, also known as reading disorder, is characterized by trouble with reading despite normal intelligence. Different people are affected to varying degrees. Problems may include difficulties in spelling words, reading quickly, writing words, "sounding out" words in the head, pronouncing words when reading aloud and understanding what one reads. Often these difficulties are first noticed at school. When someone who previously could read loses their ability, it is known as alexia. The difficulties are involuntary and people with this disorder have a normal desire to learn. Dyslexia is believed to be caused by both genetic and environmental factors.
Distracted driving
Distracted driving is the act of driving while engaged in other activities that take the driver's attention away from the road. All distractions compromise the safety of the driver, passengers, bystanders and those in other vehicles. According to the United States Department of Transportation, "text messaging while driving creates a crash risk 23 times higher than driving while not distracted." Despite these statistics, more than 37% of drivers have admitted to sending or receiving text messages while driving, and 18% admit doing so regularly. Distractions while driving can be separated into three distinct groups: visual, manual, and cognitive.
1_Apprentice
More with driving.  I can read pretty much okay.
0_Wizard
I see, cataracts are the most common cause of blindness, maybe you have that.
Cataracts are the most common cause of blindness.
chosen_Visual_impairment_0
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.
Cataract
A cataract is a clouding of the lens in the eye which leads to a decrease in vision. Cataracts often develop slowly and can affect one or both eyes. Symptoms may include faded colors, blurry vision, halos around light, trouble with bright lights, and trouble seeing at night. This may result in trouble driving, reading, or recognizing faces. Poor vision caused by cataracts may also result in an increased risk of falling and depression. Cataracts are the cause of half of blindness and 33% of visual impairment worldwide. Cataracts are most commonly due to aging but may also occur due to trauma or radiation exposure, be present from birth, or occur following eye surgery for other problems.
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.
Glaucoma
Glaucoma is a group of eye diseases which result in damage to the optic nerve and vision loss. The most common type is open-angle glaucoma with less common types including closed-angle glaucoma and normal-tension glaucoma. Open-angle glaucoma develops slowly over time and there is no pain. Side vision may begin to decrease followed by central vision resulting in blindness if not treated. Closed-angle glaucoma can present gradually or suddenly. The sudden presentation may involve severe eye pain, blurred vision, mid-dilated pupil, redness of the eye, and nausea. Vision loss from glaucoma, once it has occurred, is permanent.
Inattentional blindness
Inattentional blindness, also known as perceptual blindness, is a psychological lack of attention that is not associated with any vision defects or deficits. It may be further defined as the event in which an individual fails to perceive an unexpected stimulus that is in plain sight. When it simply becomes impossible for one to attend to all the stimuli in a given situation, a temporary blindness effect can take place as a result; that is, individuals fail to see objects or stimuli that are unexpected and quite often salient. The term was coined by Arien Mack and Irvin Rock in 1992 and was used as the title of their book of the same name, published by MIT press in 1998, in which they describe the discovery of the phenomenon and include a collection of procedures used in describing it.
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).
List of dangerous snakes
List of dangerous snakes: Is an overview of the snakes that pose a significant health risk to humans, through snakebites or other physical trauma. The varieties of snake that most often cause serious snakebites depends on the region of the world. In Africa the most dangerous species include mambas, Egyptian cobras, puff adders, and carpet vipers; in the Middle East the species of greatest concern are carpet vipers and elapids; in Central and South America, "Bothrops" (including the terciopelo or fer-de-lance) and "Crotalus" (rattlesnakes) are of greatest concern. In South Asia it has historically been believed that Indian cobras, common kraits, Russell's viper and carpet vipers were the most dangerous species, however other snakes may also cause significant problems in this area of the world.
1_Apprentice
Oh I hope not, because that means surgery.  I can't even imagine a laser or knife in my eye!
0_Wizard
A laser is just a device that emits light. 
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation.
partner_Laser_0
Laser
partner_1_Laser
Laser
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The term "laser" originated as an acronym for "light amplification by stimulated emission of radiation". The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratories, based on theoretical work by Charles Hard Townes and Arthur Leonard Schawlow. A laser differs from other sources of light in that it emits light "coherently", spatially and temporally. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography.
Light-emitting diode
A light-emitting diode (LED) is a two-lead semiconductor light source. It is a p–n junction diode that emits light when activated. When a suitable voltage is applied to the leads, electrons are able to recombine with electron holes within the device, releasing energy in the form of photons. This effect is called electroluminescence, and the color of the light (corresponding to the energy of the photon) is determined by the energy band gap of the semiconductor. LEDs are typically small (less than 1 mm) and integrated optical components may be used to shape the radiation pattern. Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensity infrared light.
Timeline of United States inventions (1946–91)
A timeline of United States inventions (1946–1991) encompasses the ingenuity and innovative advancements of the United States within a historical context, dating from the era of the Cold War, which have been achieved by inventors who are either native-born or naturalized citizens of the United States. Copyright protection secures a person's right to his or her first-to-invent claim of the "original" invention in question, highlighted in Article I, Section 8, Clause 8 of the United States Constitution which gives the following enumerated power to the United States Congress: In 1641, the first patent in North America was issued to Samuel Winslow by the General Court of Massachusetts for a new method of making salt.
OLED
An organic light-emitting diode (OLED) is a light-emitting diode (LED) in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. This layer of organic semiconductor is situated between two electrodes; typically, at least one of these electrodes is transparent. OLEDs are used to create digital displays in devices such as television screens, computer monitors, portable systems such as mobile phones, handheld game consoles and PDAs. A major area of research is the development of white OLED devices for use in solid-state lighting applications.
Laser engraving
Laser engraving, which is a subset of laser marking, is the practice of using lasers to engrave an object. Laser marking, on the other hand, is a broader category of methods to leave marks on an object, which also includes color change due to chemical/molecular alteration, charring, foaming, melting, ablation, and more. The technique does not involve the use of inks, nor does it involve tool bits which contact the engraving surface and wear out, giving it an advantage over alternative engraving or marking technologies where inks or bit heads have to be replaced regularly. The impact of laser marking has been more pronounced for specially designed "laserable" materials and also for some paints.
Laser pointer
A laser pointer or laser pen is a small handheld device with a power source (usually a battery) and a laser diode emitting a very narrow coherent low-powered laser beam of visible light, intended to be used to highlight something of interest by illuminating it with a small bright spot of colored light. Power is restricted in most jurisdictions not to exceed 5 mW. The small width of the beam and low power of typical laser pointers make the beam itself invisible in a reasonably clean atmosphere, only showing a point of light when striking an opaque surface. Some higher-powered laser pointers project a visible beam via scattering from dust particles or water droplets along the beam path.
Atomic line filter
An atomic line filter (ALF) is an advanced optical band-pass filter used in the physical sciences for filtering electromagnetic radiation with precision, accuracy, and minimal signal strength loss. Atomic line filters work via the absorption or resonance lines of atomic vapors and so may also be designated an atomic resonance filter (ARF). The three major types of atomic line filters are absorption-re-emission ALFs, Faraday filters and Voigt filters. Absorption-re-emission filters were the first type developed, and so are commonly called simply "atomic line filters"; the other two types are usually referred to specifically as "Faraday filters" or "Voigt filters".