Editing Screen magnifier (section)

==Use==
The simplest form of magnification presents an enlarged portion of the original screen content, the 'focus', so that it covers some or all of the full screen. This enlarged portion should include the content of interest to the user and the pointer or cursor, also suitably enlarged. As the user moves the pointer or cursor the screen magnifier should track with it and show the new enlarged portion. If this tracking is jerky or [[Flicker (screen)|flickers]] it is likely to disturb the user. Also, the pointer or cursor may not be the content of interest: for example, if the user presses a [[keyboard shortcut]]s that opens a menu, the magnified portion should jump to that menu. Pop-up windows and changes in system status can also trigger this rapid shifting.

Screen magnifiers can be especially helpful for people with low vision, including elderly users. However, in a 2001 paper, [[Vicki Hanson]] noted that people with low vision often also have additional disabilities such as tremors.<ref>
{{cite book
| chapter-url = http://dl.acm.org/citation.cfm?doid=564526.564531
| author = V. L. Hanson
| title = Proceedings of the 2001 EC/NSF workshop on Universal accessibility of ubiquitous computing providing for the elderly - WUAUC'01
| chapter = Web Access for Elderly Citizens
| year = 2001
| page = 14
| publisher = Proceedings of the workshop on Universal accessibility of ubiquitous computing
| doi = 10.1145/564526.564531
| isbn = 158113424X
| s2cid = 290610
| access-date = 2017-02-14
}}
</ref>