Eyes

oT: t[STwEBLyfBAiWikipediajx Source: Wikipedia, the free encyclopedia (Wikipedia),

oLqB In this item, the animals get a sense of light and organs is described. p@ (B)B For use other eye (disambiguation) please.

Eyes
qgE Human right eye
p English	Eye
Organ	o Sensory
_o Nervous	_o Optic

i AjAA`EFo AeB Eyes (the eyes, and such) and that, contrast, color and material to capture the shape of the sensory organs, and the light receptor. {IA \AA_o`Ei oE joB Basically, the reflection of light board structure and which, like light, as excited about the information communicated to the optic nerve cells (visual cells) are made from. eho oB This receptor is stimulated by a sense of vision.

oEAAoEB Reflector on the shelves of visual cells and understand the direction of light here, the visual surface of cells that lined the retina called. A sz[JB In light of the narrow entrance to the pinhole camera image on the retina in principle to a tie in regulation. Y iAX\B There's light at the entrance to the lenses and aperture switch on and further increases performance.

BAAEB The development of many animals, in the head with multiple eyes, are an example of a pair of left and right. lXAAZ~5i2P3jB However, in many cases, even one not limited to, for example, semi-five (ommateum 2 and monocular 3) with one.

[ W ] the eyes of invertebrates

AB Most of the animals, with some organs feel light.

[ W ] Oe see the light of previous receptor

KvAL[ABB Especially on the lives of animals that do not need to identify the presence or absence of light and its approximate direction, so just enough to separate the eyes of the organ development. ~~YA\E_B For example, earthworms, on the surface of the body feel light and only scattered cells.

A~hVeAR\B In addition, the native MIDORIMUSHI as if a light receptor, but of course not the first such structure. _ ijB They also point the eye (eyespot) is called.

[ W ] t cup-shaped eye

viAAt\EzuAt ijB Planarian eye and a cup-shaped structure located in the cell that vision, it's a cup-shaped eyes (HAIJI eye).

[ W ] P monocular

` A A PAYAsgi@\B Annelid, many molluscs, and arthropods have a quick eye of the lens and retina to prepare, focus and aperture control and other functions. P ijB Such a monocular (one eye).

[ W ] in the eyes of insects, etc.

AoBB Among invertebrates, is the most visual of the development of the arthropod insects and a cephalopod mollusc. A P B The eyes of insects, monocular and the compound eye of. bkAlB Crustacean similar to the one with a lot of eyes.

[ W ] ommateum


g{ Dragonfly's compound eye		dqiLNILA~B Electron microscope by the Antarctic krill in the compound eye of the picture. qg_ Human to the naked eye to see a small black dots

P#Q Monocular # compound eye compound eye and see

A{{\WB Compound eyes, tens of thousands of thousands of books from the book of the same structure, with each piece is a collection of eye. \zA\B The narrow piece of eye ball to be part of that arrangement, is composed of compound eye. OwYA~AEwB Individual pieces from the outer layer of the eye lens, crystal conical body, the vision come from the cell layer. RAmuB Other pieces do not leak light into the eye, one eye on each otherTA the bulkhead is impervious to light. Ew~co`AOS8eEB In the case of bees as a layer of cells, and receive direct light from the outside of the center and around the rod photoreceptor cells from eight to be equal. eE~co`AOx2Ax2Ax4B If the bees and photoreceptor cells, with a high sensitivity to UV rays are the most two, and blue represents a two-sensitivity of the green come between 4 shows sensitivity. Y_ZoAXy[XK\B To reduce the lens focal length can be shortened, so there is little physical space structure is suitable for small creatures.

[ W ] ^RECJ octopus squid's eyes

j ^RECJ\JB Mollusca Cephalopoda belong to the octopus squid, and almost the same structure of the vertebrate eye with a camera eye.

[ W ] the eyes of vertebrates

[ W ] qg the human eye

eA B The second receptor is one of the light sense. \Ju J vB Structure of the camera that resembles a "camera eye" is also called. EAFB A pair of left and right in the face, and stereoscopic vision can be recognized by a sense of perspective.

[ W ] \ Structure

qg\ The structure of the human eye

AOp Aiuvijj\AB Is a sphere, the outer cornea, sclera (the so-called "coldly" (white of the eye) part) is made to maintain the sphere of the eye.

[ W ] e in the light receptor

i}jiE}j_lqB The light from distant (left) and the light from nearby (right) look focus on the retina. YB If you close the lens is thicker.

pA EoB The first image in the cornea, as the pupils go through the eye inside. OkA EB Depending on the amount of light outside the iris and the contraction, the pupil to adjust the size.
B Retinal image to fit on a lenticular image by refraction. `ElAJL_B Chin small band of the lens, ciliary body thickness of the work has been adjusted by the camera in the same way that a wide range of focus.
q fB The statue of refraction vitreous through the retina away match.

YvACpsA_B Lenticular lens, so that the refractive lens of the main roles tend to believe, but in fact the air and corneal and refractive index of refraction of most of the difference in the focus of the lens is adjusted only It is involved in good. ApB Therefore, the cornea of the eye, and it is blindness.

WE A E2EAE_ooRo]A oB In retinal rod cells and cone cells of two types of visual cells, the cells through the optic nerve via the visual information in the brain was sent to the visual said. WE@\B Rod cells to function in the dark. xB High sensitivity to light. EA@\B Pyramidal cells, work in bright light. xF\B A low sensitivity to light can be distinguished by color.

OAi jA B Outside of the eyelid (eyelid), Eyelashes said. OA\ijB Foreign body from the outside of the eyelid and obstruct a strong light, the surface of the eye by blinking (conjunctiva) tears lead.

[ W ] F eye color

FQ For details, the color of the iris see

FjFfB Individual pupils by the different colors of the pigment melanin by the difference between the amount. Ff B By the amount of pigment blue <green <tea <black look. FfFf[A tFA B Abnormal pigment to the extreme amount of pigment is low, blood visible in the transparent color, red eyes and I said. ETMB White rabbit in red-eye to this.

[ W ] activities

nxANBA6xA30.6A61.0B Immature at birth in a vision that can see light and dark is about the development every year, nearly 6-year-old completion of the normal three-year-old at the time about the vision of 0.6,6 and at the age of about 1.0. cQjQ@\BA B The disorder in childhood and a inhibit the growth and function are not well developed, amblyopia said. @\40xnA VoB The second feature from the decline started about 40 years old, presbyopia and other symptoms.

lerEp\RghCACB The modern TV PC to overuse in the eyes dry in a high percentage. g60g10xePAKvB Do not overuse eyewith a 60 to 10 minutes after the break and the need for care.

[ W ] F\ color resolution

x#lQ Details of the resolution # human eye see

[ W ] i_ eyes and the theory of evolution

LG\AvflAn_uSvi_IoB As Vertebrate above the complex structure of the eye, and any one element lacking in vision and can not get normal as possible and often theory of creation by the "first made in a state of complete Unless low Oh no eyes or the eyes, "the theory of evolution of the negative examples cited. n_Aw N x`[YE_[EBAu__vp^[1] B By the theory of creation, the origin of species is the author of Charles Darwin, but can not explain it well, "the shortcomings of its own," he was quoted incorrectly can be done ^[1].

u C AioOPoiIpKvjvunINoKvv_B In response, "the air and water in the refractive index of different animals to enter the land before the eyes than the simple visual obtained by (such as concrete does not require the cornea)," "First of all primitive Is clear Life did not need a vision "would be made to re-argue. ASo\A lB In addition, a full life is possible without the vision of the myopia and astigmatism correction has been living without a lot of human existence is evident from that. `[hEh[LXEofAOQqoAusSvffqB Richard Dawkins to remove a cataract in the lens of his aunt, an obstacle in front of the lens from a lack of know in the eye was no better than that he cites, "Your eyes Is incomplete without it the same, "said the aunt would be embarrassing, he said. ^[2]AEL@AlXiKA\lXAmi\B ^[2] In addition, the animal kingdom widely observed, if truly the eyes of many present stage, their performance is very different and we know that, even in the current knowledge of the evolution can be traced Many aspects.

^R qgA wIAli B Octopus and human eyes are similar, developmental biology and the cause is different because the style of evolutionary convergence of analog is it. A qwIA^RqgijAz `qA KUlB Meanwhile, the molecular biology of the octopus and human (but not limited to various gates belong to the animal) of the similar sequence of the gene expression caused by the adaptive radiation as a result of a different style to occur The phase of the organ can be.

[ W ] occur

CA wO U _o ]AtAx\UB In the case of newts, Haraguchi dorsal lip-induced neural tube at the top of the brain, differentiation, resulting from the glass eyes bulging, called by the time the epidermis induced by the lens. AtAB In addition, glass eye, the retina. x\pUB And now the surface of the lens from the cornea to induce.

w lX`llAifloB The current biology in the environment due to gradual changes in the various traits earn believed to be the first evolutionary model has been conceived by some.

[ W ] disease

Swelling of the eyelids

Myopia
False myopia
Astigmatism
Hyperopia
Squint
Amblyopia
V iVj Presbyopia (presbyopia)
[ Hyperemia
Glaucoma
Cataract
Retinal detachment
Fo Achromatopsia
J Eyestrain
hCAC Dry eye
Myodesopsia
Conjunctivitis
Night blindness
U Eyeball shaking
i Aa j Retinopathy (diabetic retinopathy)
F Heterochromia of iris

[ W ] Other

u[x[AgVAjApNHioA{iFB Blueberries will be included in the anthocyanin is good for the eyes, the use of healthy foods are available in Japan, were approved as drugs do not have one.