It is used to present the main points or topics of a given subject, often used as a rough draft or summary of the content of a document. Preparation of an outline is an intermediate step in the process of writing a scholarly research paper, literature review, thesis or dissertation.
The center of the computer monitor should normally be located 15 to 20 degrees below horizontal eye level (Figure 6). The entire visual area of the display screen should be located so the downward viewing angle is never greater than 60 degrees when you are in any of the four reference postures.
Desktop displays can make this even worse: When you're looking up at a monitor (as opposed to down in your hands or your lap), your eyes tend to be open wider, with more surface area exposed to evaporation. Researchers also blame lighting conditions for much of computer vision syndrome.