Home
»
PEOPLE
»
Eyes
PNG images: Eyes
Eyes are organs of the visual system. They provide organisms vision, the ability to process visual detail, as well as enabling several photo response functions that are independent of vision. Eyes detect light and convert it into electro-chemical impulses in neurons. In higher organisms, the eye is a complex optical system which collects light from the surrounding environment, regulates its intensity through a diaphragm, focuses it through an adjustable assembly of lenses to form an image, converts this image into a set of electrical signals, and transmits these signals to the brain through complex neural pathways that connect the eye via the optic nerve to the visual cortex and other areas of the brain. Eyes with resolving power have come in ten fundamentally different forms, and 96% of animal species possess a complex optical system. Image-resolving eyes are present in molluscs, chordates and arthropods.
The simplest "eyes", such as those in microorganisms, do nothing but detect whether the surroundings are light or dark, which is sufficient for the entrainment of circadian rhythms. From more complex eyes, retinal photosensitive ganglion cells send signals along the retinohypothalamic tract to the suprachiasmatic nuclei to effect circadian adjustment and to the pretectal area to control the pupillary light reflex.
In this gallery you can download free PNG image: Eyes PNG images free download, eye PNG
In this gallery "Eyes" we have 74 free PNG images with transparent background.
Eyes PNG images for free download:
-
Res.: 928x589
Size: 525 kb
-
Res.: 752x699
Size: 353 kb
-
Res.: 1024x1024
Size: 701 kb
-
Res.: 720x720
Size: 344 kb
-
Res.: 1024x1024
Size: 823 kb
-
Res.: 370x370
Size: 175 kb
-
Res.: 255x255
Size: 95 kb
-
-
Res.: 1024x1024
Size: 607 kb
-
Res.: 600x600
Size: 173 kb
-
Res.: 600x600
Size: 412 kb
-
Res.: 583x583
Size: 477 kb
-
Res.: 800x800
Size: 573 kb
-
Res.: 300x300
Size: 56 kb
-
Res.: 279x278
Size: 134 kb
-
Res.: 297x261
Size: 34 kb
-
Res.: 700x360
Size: 12 kb
-
Res.: 700x360
Size: 12 kb
-
Res.: 680x340
Size: 53 kb
-
Res.: 450x461
Size: 393 kb
-
Res.: 640x480
Size: 21 kb
-
Res.: 512x403
Size: 51 kb
-
Res.: 894x894
Size: 570 kb
-
Res.: 1024x1024
Size: 718 kb
-
Res.: 295x294
Size: 157 kb
-
Res.: 894x894
Size: 999 kb
-
Res.: 512x512
Size: 232 kb
-
Res.: 2396x2396
Size: 2694 kb
-
Res.: 2400x855
Size: 28 kb
-
Res.: 400x400
Size: 395 kb
-
Res.: 1000x1000
Size: 757 kb
-
Res.: 420x420
Size: 69 kb
-
Res.: 320x320
Size: 120 kb
-
Res.: 918x870
Size: 465 kb
-
Res.: 682x300
Size: 449 kb
-
Res.: 1216x959
Size: 1979 kb
-
Res.: 354x279
Size: 137 kb
-
Res.: 1000x935
Size: 1580 kb
-
Res.: 8000x1561
Size: 1378 kb
-
Res.: 450x450
Size: 240 kb
-
Res.: 500x158
Size: 52 kb
-
Res.: 800x280
Size: 16 kb
-
Res.: 250x132
Size: 46 kb
-
Res.: 400x400
Size: 106 kb
-
Res.: 599x203
Size: 39 kb
-
Res.: 400x368
Size: 342 kb
-
Res.: 500x200
Size: 21 kb
-
Res.: 2400x2278
Size: 715 kb
-
Res.: 200x200
Size: 37 kb
-
Res.: 600x600
Size: 296 kb
-
Res.: 320x320
Size: 129 kb
-
Res.: 1370x870
Size: 1555 kb
-
Res.: 368x348
Size: 202 kb
-
Res.: 600x392
Size: 239 kb
-
Res.: 1280x714
Size: 50 kb
-
Res.: 600x293
Size: 21 kb
-
Res.: 320x320
Size: 131 kb
-
Res.: 200x200
Size: 27 kb
-
Res.: 1200x1200
Size: 1133 kb
-
Res.: 1604x1603
Size: 1494 kb
-
Res.: 512x512
Size: 327 kb
-
Res.: 600x241
Size: 51 kb
-
Res.: 1969x788
Size: 573 kb
-
Res.: 400x400
Size: 106 kb
-
Res.: 297x261
Size: 34 kb
-
Res.: 999x999
Size: 309 kb
-
Res.: 599x203
Size: 39 kb
-
Res.: 1370x870
Size: 916 kb
-
Res.: 1024x768
Size: 383 kb
-
Res.: 1072x768
Size: 870 kb
-
Res.: 558x294
Size: 299 kb
-
Res.: 800x800
Size: 469 kb
-
Res.: 3156x3156
Size: 2913 kb
-
Res.: 3505x3057
Size: 2562 kb