I want specific information! I don't want anyone to say trade your eyes with a cat! I mean thats a whole bunch of crap your telling me! Specific people!
2006-12-08 14:20:46 · 14 answers · asked by grace. 3 in Pets ➔ Cats
Stay in the dark for a couple of months. You will see everything !!!
2006-12-08 14:23:19 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Ok, cat woman. Kind of strange you couldn't see better in the dark. How about lighing a match, candle, or the lighter.
On the serious side, if you're still young, say, less than 30 close your eyes a few minutes and let your eyes get used to the dark. If you're older you have to do this at lest 10 to 15 minutes for your eyes to get used to the dark so you can see. Try it The older you are the longer it is for you to get use to the light or dark before you can feel comfortable with seeing. good enough, yes?
2006-12-08 22:27:53 · answer #2 · answered by FILO 6 · 0⤊ 0⤋
Well, to do it naturally, the only way really is to be in the dark for a good while, 10 or 20 minutes, and let your eyes dilate fully. Then any available light will be seen. You could also use dilation solution to make this happen more quickly. The most artificial, but effective way is, of course, night vision goggles.
2006-12-08 22:24:34 · answer #3 · answered by krusher84 2 · 0⤊ 0⤋
Rod and cone cells are the pigment cells of the eye. Rod cells are the most important for seeing in the dark.
Rods and cones constitute a densely packed array of photoreceptors in the "bottom" layer of the retina. With the exception of one small area – the fovea, light must traverse dense layers of cells and fibres before reaching the receptors, where photons (particles of light) are absorbed. The fovea is densely packed with cones and there are no rods present. Since the retina contains no rods, it constitutes a blind spot at night. A different blind spot corresponds to the region of the retina fro which the optic nerve fibres leave the eye; at this spot there are no photoreceptors.
Visual pigments are concentrated in membranes of the outer segments of the pigment cells. Each rod contains approximately 108 pigment molecules. They are aggregated on several hundred discrete disks. The visual pigment is so densely packed that the distance between two visual pigment molecules in a rod is less than 10 nm. This dense packing of sensitive molecules in serial layers of membranes traversed by light enhances the probability that a photon (one particle of light) will be trapped on it's way through the outer segment. If you can trap one photon of light then your visibility win the dark will be much better than if the lowest you could trap was 50 photons of light.
The rod pigment consists of two parts opsin and retinal. The rod visual pigment rhodopsin, absorbs blue-green light at wavelength of about 500nm is the most effectively in the visual spectrum. Blue-greenish lights at about 500nm are optimal for perception of dim light in the dark. In daylight, when cones are inactive and cones are used, we are more sensitive to red light, because that is the wavelength of light cones absorb most effectively.
Once a photon has been absorbed by rhodopsin, retinal undergoes photoisomerisation (- it changes shape due to the energy provided by light) and changes from an 11-cis shape to an all-trans shape. This transition is extremely rapid – takes place in approximately 10 to the power of -12 seconds. This is known as bleaching.
Regeneration of pigments after bleaching is slow, taking many minutes; it entails transfer of retinal between the photoreceptor and the pigment epithelium. This is why it takes a while to adapt from coming from a dark area to a well lit area.
As an aside: Remember that retinal is part of the pigment in rods. When the retinal and opsin combine to re-form rhodopsin, extra retinal is required. Without adequate amounts of retinal, regeneration of rhodopsin is incomplete and night blindness occurs.
Retinal is a form of vitamin A. Which can also be found in carrots in a form known as beta-carotene. Carrots do help you to see in the dark!
If you want artificial means of seeing in the dark, use night vision goggles.
Hope this is specific enough!
2006-12-08 22:43:10 · answer #4 · answered by themessiah2257 2 · 0⤊ 0⤋
First step stand by your light switch and put your finger over it. Close your eyes for ten seconds and then turn you light of. Keep your eyes closed for another ten seconds then open them. Wait for about a minute and you will start to see the different objects in the room. Good Luck.
2006-12-08 22:29:50 · answer #5 · answered by Anonymous · 0⤊ 0⤋
It really depend on the number of Rod cells, in thier retina of the eyes. Rod Cell are function in less intense light it is sensitive enough to respond to a single photon of light, and is about 100 times more sensitive to a single photon than cones.
Cone cell – responsilbe for colour vision
Rod cell – more sensitive to light, but the vision in only black and white.
2006-12-08 22:28:40 · answer #6 · answered by BB2791 4 · 1⤊ 0⤋
Stay in the dark, use only red light if light is needed and your eyes should adjust to the darkness as good as possible.
2006-12-08 22:23:36 · answer #7 · answered by ganja_claus 6 · 1⤊ 0⤋
your eyes adjust and you become used to the dark after a while
2006-12-08 22:22:49 · answer #8 · answered by kittylover 1 · 0⤊ 0⤋
I dont really understand what you are wanting here
Our pupils dialate (widen) in the dark to let more light in.
when we are in the light they constrict to let less light in.
2006-12-08 22:23:02 · answer #9 · answered by wantme_comegetme 5 · 0⤊ 0⤋
Open your eyes, and get use to the darkness....
2006-12-08 22:22:26 · answer #10 · answered by Anonymous · 0⤊ 0⤋