Many graphing utilities have an equation editorthat requires an equation to be written in â â form in order to be entered, as shown in Figure A.1. (You should note that your equation editorscreen may not look like the screen shown in Figure A.1.) FIGURE A.1 y x y. y 3x 5 y x. A An Introduction to Graphing Utilities Uses of a Graphing Utility A graphing utility can be used to â¢ check or validate answers to problems obtained using algebraic methods. â¢ discover and explore algebraic properties, rules, and concepts. â¢ graph functions and approximate solutions of equations involving functions.
PRP Injections. PRP (platelet rich plasma) injections represent a newer form of therapy, where substances taken from a personâs own body are used to treat tissues that are damaged or injured. Referred to as an autologous blood therapy, a personâs own blood components are used to stimulate healing.
PRP reduces the risk of severe vision loss compared with no treatment in eyes with high-risk PDR. Eyes with high-risk PDR should receive prompt treatment with PRP. Eyes with two or fewer high risk characteristics (HRCâs) still benefit from PRP, but the benefit is small and risks of treatment may outweigh the benefits.