Thinning in the 'Quiet' Eye When a patient presents with some thinning in his corneal periphery, one of the first questions physicians ask is whether or not the eye is inflamed. If it's not, ophthalmologists say you can then look for the following causes:
Webster Dictionary(0.00 / 0 votes)Rate this definition: Refutation(noun) the act or process of refuting or disproving, or the state of being refuted; proof of falsehood or error; the overthrowing of an argument, opinion, testimony, doctrine, or theory, by argument or countervailing proof. Origin: [L. refutatio: cf. F. rfutation.]
A Physic's definition of refraction involves a change in the direction of waves as they pass from one medium to another. This is due to energy conservation when a wave changes its wavelength, and thus wave speed, as it enters a new medium (like in light or sound waves traveling from air to water). Now, in terms of ocean waves, refraction also involves a change of direction when a wave experiences a shift in wavelength and wave speed.