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. Author manuscript; available in PMC: 2009 Apr 1.

Published in final edited form as: J AAPOS. 2007 Dec 26;12(2):145–149. doi: 10.1016/j.jaapos.2007.08.014

Normal visual acuity from participants in the present study and those in other studies plotted as a function of age. Note that visual acuity scores from 8–10 year-olds in the present study are combined and plotted at 9 years of age. (-●- Shea & Gaccon, 2006, Glasgow Acuity Cards; -○- Simmers et al., 1997, Glasgow Acuity Cards; -▼-Simmers et al., 1997, Sheridan-Gardiner; -■- Sheridan, 1960, HOTV; -▽- Slataper, 1950, Tumbling E; -□-Simons, 1983, Landolt C; -◇-Wiess, 1973, Tumbling E; -◆-Weiss, 1973, Tumbling E; - -Morad et al., 1999, Tumbling E; - -Morad et al., 1999, Linear Tumbling E; - - Brant & Novotny, 1976, Snellen; - - Brant & Novotny, 1976; Tumbling E; - - Current Study, HOTV).

Inline graphic — Normal visual acuity from participants in the present study and those in other studies plotted as a function of age. Note that visual acuity scores from 8–10 year-olds in the present study are combined and plotted at 9 years of age. (-●- Shea & Gaccon, 2006, Glasgow Acuity Cards; -○- Simmers et al., 1997, Glasgow Acuity Cards; -▼-Simmers et al., 1997, Sheridan-Gardiner; -■- Sheridan, 1960, HOTV; -▽- Slataper, 1950, Tumbling E; -□-Simons, 1983, Landolt C; -◇-Wiess, 1973, Tumbling E; -◆-Weiss, 1973, Tumbling E; - -Morad et al., 1999, Tumbling E; - -Morad et al., 1999, Linear Tumbling E; - - Brant & Novotny, 1976, Snellen; - - Brant & Novotny, 1976; Tumbling E; - - Current Study, HOTV).