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.
Routine Breaks: As mentioned above, the best thing you can do is to routinely remove yourself from the computer and give your eyes a break every 20 minutes. For every 20 minutes of computer use, take a 20 second break and look at an object 20 feet or more away.