Optometry

Optometry instruments and technology

Every medical branch has its own applicable equipment used for the diagnosing of patients, Every ophthalmologist use their instruments for their daily work. Light, like radio, consists of electromagnetic waves. The major difference between the two is that light waves are much shorter than radio waves. The use of these electromagnetic waves for long-distance communications was the beginning of an industry and it came to known first as wireless and later as radio. Because of this industry the world has come to know about many fascinating technologies. A laser is a device that emits a concentrated beam of photons, which are the basic units of electromagnetic radiation.