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. Author manuscript; available in PMC: 2011 Jul 1.
Published in final edited form as: Ergonomics. 2010 Jul;53(7):892–903. doi: 10.1080/00140139.2010.489968

Table 3.

Comparison of MOA (mean ± SD) between the results of the present study and those in published literature

Age Group Present Study
MOV (Diopter)		 Published Literature
Amplitude of Accommodation (Diopter)
Younger Group
(20–29 years)		 1.18 (able to accommodate from
4 m to 70 cm)		 9 ± 2 *
10 ± 3.5 ** 		Both suggesting the ability to
accommodate from 4 m to 70 cm
Middle-aged Group
(40–49 years)		 1.18 (able to accommodate from
4 m to 70 cm)		 3.5 ± 2.5 *
5 ± 2 ** 		Both suggesting the ability to
accommodate from 4 m to 70 cm
Older Group
(60–69 years)		 0.244 ± 0.121 0.3 ± 0.2 *
1 ± 0.5 **