Let's take a look at the four ways we can transform a tangent function and graph. A changes the amplitude, or how steep the graph is along the y axis. B changes the period, or how wide one pattern of the graph is. C changes the phase shift, or how the graph is shifted to the left or the right. D controls the vertical shift, or how the graph is shifted up or down.
Wear your corrective lenses to see where you are going or it won't be just eyes hurt. Floaters, the little bits of scar tissue in the jelly of the eye that lead or lag behind the motion of the eye thus drift or float are made worse in excessive eye rubbing or worse can lead to retinal tears or detachment. Avoid this practice. Treat the itching if that is what the problem is in the first place.
When light rays enter they eye, they are focused by the cornea and lens onto the retina, which receives the image and transmits it to the brain via the optic nerve. If the retina is detached from its underlying tissue then it cannot function, and if it's not reattached quickly, the result is often permanent blindness.Symptoms of a detached retina. Symptoms of a retinal detachment may include. 1  An increase in the number of spots or floaters.etached Retina: Causes, Symptoms and Treatment. A detached retina, which occurs when the retina becomes separated from the tissue which normally supports it, is an extremely serious eye condition which must be treated as a medical emergency.