The most common reason for scar tissue in the back is from surgery; however, there are other causes that will cause scar tissue to form. Repetitive motion, injury, and surgery can cause scar tissue to form.Other causes for scar tissue can be sporting accidents or any other type of accident causing damage to the spine.s scar tissue is a form of healing, it will begin to develop during these stages. In fact, scar tissue will begin to form during the very first stage of healing, which is the acute stage. The acute stage is also called the inflammatory stage. This is when inflammation will occur, and this is not always bad.
1 Refraction: 2  is the bending of light as it passes from one medium to another with different densities. 3  amount of refraction depends upon: 4  density of the materials. 5  angle at which the light enters the material. 6  wavelength-causes colors of white light to separate when passing through a prism.efraction of Light. 1  Refraction: 2  is the bending of light as it passes from one medium to another with different densities. 3  amount of refraction depends upon: 4  density of the materials. 5  angle at which the light enters the material.
The ray of light which travels through the incident, or first, medium and strikes the boundary, or interface, is called the incident ray. The ray of light which travels into the refracted, or second, medium and leaves the interface is called the reflected ray. A line perpendicular to the surface is imagined at the point of refraction. This line is called a normal. In this context the word normal means perpendicular.