“The only thing worse than being blind is having sight but no vision.” - Helen Keller - Career Guide | myStarjob.com.
The only thing worse than being blind is having sight but no vision. — Helen Keller.
“The only thing worse than being blind is having sight but no vision.” –Helen Keller.
Helen Keller once stated, “The only thing worse than being blind is having sight but no vision”. A strong declaration, coming from someone who overcame incredible odds though blind and mute. Sight is a function of the eyes, and allows us to physically see. Vision, on the other hand, is in the mind or the mind's eye.
What this means is that people blind since birth probably do not experience detailed visual images of actual objects such as apples or chairs while dreaming. Rather, they probably see spots or blobs of color floating around or flashing.
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.
Researchers said on Thursday that the red brittle star, called Ophiocoma wendtii, is only the second creature known to be able to see without having eyes - known as extraocular vision - joining a single species of sea urchin.
What does nothing look like to a blind person? 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.
The 4mm brain implant allowed the former teacher to see shapes, letters, and even play video games. A former science teacher who had been blind for 16 years can see again, thanks to a startling scientific breakthrough.
20/10 vision is thought to be the maximum visual acuity of human eyes without binoculars or other magnifying devices. Recent advances in optics have led to the creation of corrective lenses that can provide this ultra-sharp vision.
Retinal degeneration disorders have no cure. These diseases break down the retina, the layer of tissue found at the back of the eye containing cells that detect light entering the organ. There are a number of these degenerative diseases, including retinitis pigmentosa, macular degeneration and Usher syndrome.
If you're partially blind, you have limited vision. For example, you may have blurry vision or the inability to distinguish the shapes of objects. Complete blindness means you can't see at all. Legal blindness refers to vision that's highly compromised.
In summary, old and recent studies revealed that blind and sighted people spontaneously produce the same type of facial expression, particularly for basic emotions like happiness, sadness and fear.
According to the data, the risk of mortality was 29% higher for participants with mild vision impairment, compared to normal vision. The risk increases to 89% among those with severe vision impairment. Importantly, four of five cases of vision impairment can be prevented or corrected.
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.
While only around 18 percent of patients with significant visual impairment are totally blind, most of them are defined as low vision whom still can perceive light. Consequently, although they cannot tell the difference between shapes or colors, they can still distinguish between light and dark.
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.
Although chitons look very simple, these mollusks have a very sophisticated shell. Its outer layer contains up to 1000 tiny eyes, each a bit smaller than the period at the end of this sentence.
Some animals like fish, snakes and some lizards don't blink because they don't have eyelids, and some animals don't have eyes at all.
Interestingly enough, in our versatile animal kingdom, there are multiple animals that are born blind. One of them is the eyeless shrimp, which only has light perception. Another one is the star-nosed mole, the fastest-eating mammal in the world, who uses touch as their main sensory organ.
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.
Perhaps the most well known blind person was Helen Adams Keller (fig. 1), (June 27, 1880 - June 1, 1968), an American author, political activist, and lecturer. Helen Keller was the first deaf-blind person to earn a bachelor of arts degree.
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.