In most cases this is not an independent disease, but one of the symptoms of another, more severe disease. The symptom manifests itself in different ways: beginning from a simple discharge of purulent exudate from the eye, ending with complex cases with pain and fever.
Severe visual impairment, much less his absence, greatly reduces the quality of life, so we try to protect our eyes from all sorts of injuries so as not to lose the ability to see.
The term "heterophory" derives from the confluence of Greek words "different" and "carrier." Denote this term is a violation of the normal location of the eyeballs, provided that both eyes work together.
The world around us we perceive first of all with the help of the eyes. So, a lot depends on the correct operation of this pair of eyes. Eyes usually have to work a lot during the day, getting rest mainly at night.
Color blindness is a special type of visual impairment, which is manifested in the absence of perception of certain colors, most often green, red and purple. Basically, color blinds are not able to distinguish a particular color or several colors.
Today, in medicine, the need to restore vision is becoming increasingly important. Patients complain of reduced visual acuity, clarity of perception. For many, the perceived object is twofold, or "flies" appear before the eyes.
Rapid fatigue of the visual apparatus indicates the development of asthenopia. Consider the causes of discomfort in the eyes, symptoms, types, methods of treatment and prevention.
The ability of the eye to distinguish objects based on the wavelength of light that they reflect, radiate or transmit, provides a person with a color vision.