The healing effect of light and color has been known since ancient times.In ancient Egypt, the power of color was used for healing. The temples of Heliopolis, the city of the Sun, were designed so that sunlight would break into the colors of the rainbow spectrum as it entered. In these temples, the blind were treated, and they began to see.And in ancient Rome, visual acuity was checked by the stars. If a person distinguished two small stars in the constellation Ursa Major, then he was taken to the legionnaires. The warrior, who began to see worse, was prescribed to contemplate the heavenly bodies as a reliable recipe. Sunlight and moonlight, the shining of stars, flashes of lightning, reflections of light in water, play of a rainbow ... These and many other natural sources of light have special healing properties that can be used to improve visual functions and restore vision.After reading the book "Rainbow of Insight" by the famous Russian ophthalmologist professor Oleg Pankov, you will get acquainted with his unique method of restoring vision without drugs and operations, based on the use of polarized and reflected light, refracted light rays and biologically active color ranges.Professor Pankov's technique includes simple and accessible exercises with a candle flame, reflections in water and mirror surfaces, colored lanterns, aquarium fish and other original procedures with natural and artificial light sources that will help the reader improve visual functions in myopia, hyperopia, astigmatism, cataracts, glaucoma and other ophthalmic diseases.