Convex-lens aids. A: Spectacle magnifiers Convex-lens aids. A: Spectacle magnifiers. B: Close reading distance with spectacle magnifier, both hands being free to hold reading material but light possibly being obstructed. C: Spectacle-mounted magnifiers. D and E: Dome magnifiers. F: Hand magnifiers of various strengths. G: Hand magnifier being used for kitchen task. H: Hand magnifiers suitable for carrying in a pocket or purse. I: Illuminated hand magnifiers of various strengths. J: Fixed focus stand magnifier, allowing writing on the material being read. K: A woman with macular degeneration uses a stand magnifier. Her hand tremor prevented her from using a hand magnifier. Source: Chapter 24. Low Vision, Vaughan & Asbury's General Ophthalmology, 18e Citation: Riordan-Eva P, Cunningham ET, Jr. Vaughan & Asbury's General Ophthalmology, 18e; 2011 Available at: http://accessmedicine.mhmedical.com/DownloadImage.aspx?image=/data/books/rior18/rior18_c024f004g.png&sec=40235304&BookID=387&ChapterSecID=40229341&imagename= Accessed: December 30, 2017 Copyright © 2017 McGraw-Hill Education. All rights reserved