A person with total blindness won't be able to see anything. But a person with low vision may be able to see not only light, but colors and shapes too. However, they may have trouble reading street signs, recognizing faces, or matching colors to each other. If you have low vision, your vision may be unclear or hazy.
Seeing the different sources of light, called light perception, is another form of blindness, alongside tunnel vision and many more. Though, one point to consider is the fact that individuals who were born blind cannot tell whether they see total black or not because, simply, they can't really tell.
The answer, of course, is nothing. Just as blind people do not sense the color black, we do not sense anything at all in place of our lack of sensations for magnetic fields or ultraviolet light. We don't know what we're missing.
One of the most common questions blind people get asked about their blindness is “What do you see?” Unless the blind person formerly had sight, there's no frame of reference to describe the experience. A person blind from birth typically doesn't see anything… not black, not gray, not white.
What do people with total blindness see? People who have lost their vision have a wide range of reactions. Some people have described experiencing pure darkness as if they were in a cave. Some see flashes or have strong visual illusions, for example, familiar forms, shapes, and colors, or lights.
Science Behind Blind People's White Eyes
A cataract is an accumulation of protein on the eye's lens. When this happens, light cannot pass through, which causes partial vision loss. Cataracts are not rare. In fact, it is the leading cause of blindness in the world and doesn't just affect the older generation.
Yes, Blind People Dream, Too. Blind people can and do dream, though their dreams can be somewhat different from those of sighted people. The type of imagery a blind person has in their dreams can also vary, depending on when they lost their sight.
Some describe seeing complete darkness, like being in a cave. Some people see sparks or experience vivid visual hallucinations that may take the form of recognizable shapes, random shapes, and colors, or flashes of light.
Wearing sunglasses can help blind people protect their eyes from bright lights and foreign objects. It's a stereotype that the main reason blind people wear sunglasses is to hide their eyes. While some blind people may choose to wear sunglasses for this reason, sunglasses usually play a protective role.
Some profoundly blind people can “see” after all – although not in the way we traditionally think of vision. Cells at the back of their eyes monitor light levels and use them to set the body's clock to either night or day.
Complete blindness (occasionally dubbed NLP, or “no light perception”) is incredibly rare. This happens when the connection between the eyes and brain is completely cut off. Either there is brain damage, the optic nerve has been severed, or the eyes have been removed.
It is a common misconception that blind people do not experience sexual attraction because of their inability to see, but this could not be further from the truth. In reality, blind people have happy and successful sexual relationships just like everyone else.
When you are newly blind, in the beginning, it can feel frustrating or scary. This is because you have not learned how to do things for yourself as a blind person. But once you learn the skills that blind people use, you no longer feel that way. Blind people do the same things as sighted people.
Some blind people see full visual scenes while they dream, like sighted people do. Others see some visual images but not robust scenes. Others yet do not have a visual component to their dreams at all, although some researchers debate the degree to which this is true.
Four out of five cases of blindness are fully reversible. Blindness and visual impairment disproportionately affects the global poor. Roughly 90 percent of the world's visually impaired live in conditions of poverty. Four out of five blind people live with reversible forms of blindness.
Many people tries to experience “blindness” by closing their eyes. The darkness we experience isn't actually the same as being totally blind. In the logic of biology, there are still a reflection of the colors through the iris to the retina when you close your eyes.
Just as with most sighted people, the majority of blind people will eventually have children. There are blind parents who are married to other blind people, married to sighted people, single, divorced, foster parents, adoptive parents, and blind parents with additional disabilities.
Questioning the belief that dates back to philosopher John Locke that people born blind could never truly understand color, the team of cognitive neuroscientists demonstrated that congenitally blind and sighted individuals actually understand it quite similarly.
Yes, shock horror, people with visual impairments do sometimes drink to excess too. Just like anyone.
Cards, chess and other games
Braille versions – some of the games available in Braille versions include chess, playing cards, Monopoly, Ludo and Bingo. Tactile versions – some games equipment, such as dominoes or dice, have raised numbers that are easily distinguishable by touch.
Surgeons cannot transplant a whole eye because even if they could implant the eye into the socket, the eye still would not be able to transmit signals to the brain through the optic nerve, and thus the patient would not be able to see.
Nystagmus can either be vision related or caused by a muscular imbalance. If vision related it often indicates deterioration in the central field of vision from an early age. The involuntary eye movements can occur in circular patterns, up and down, or from side to side.
Green is considered by some to be the actual rarest eye color in the world, though others would say it's been dethroned by red, violet, and grey eyes. Green eyes don't possess a lot of melanin, which creates a Rayleigh scattering effect: Light gets reflected and scattered by the eyes instead of absorbed by pigment.