Can nufacemini use his eyes?

Eyes (also called eyes, eyes) are organs that can perceive light. The simplest eye structure can detect the brightness of the surrounding environment, and the more complex eye structure can provide vision.

Compound eyes usually exist in arthropods (such as insects), which are usually composed of many simple small eyes and produce multiple images that are usually unimaginable.

In many vertebrates and some mollusks, the eyes image by projecting light to the photosensitive retina, where the light is received and converted into signals and transmitted to the brain through the optic nerve.

Usually the eyes are spherical, filled with transparent gel-like substances, with a lens for focusing and usually an iris to control the amount of light entering the eyes.

brief introduction

The eyes are the most important organs in human senses, and about 80% of the knowledge in the brain is obtained through the eyes. Reading, looking at pictures, enjoying pictures, looking at people and enjoying beautiful scenery all require eyes. The eyes can distinguish different colors and brightness of light, and convert this information into nerve signals and transmit them to the brain.

The human eye is the benchmark of telescope magnification, that is to say, the magnification is 1, and the aperture is the size of the pupil of the human eye, which varies with the change of illumination intensity and generally fluctuates between 2-7 mm.

The eye can change the focal length of the lens by adjusting the curvature (refraction) of the lens, so as to obtain an inverted and reduced real image. The farthest point that the eyes can see is called the adjustment far point, and the far point that the eyes can see is extremely far; The closest point that the eye can see is called the accommodation near point, and the accommodation range is called between two points. The near point of normal eyes is about 10 cm away from the eyes.