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Abstract: Purpose: To see the reading speed with different low vision devices having
same magnification i.e. 2X in emmetropic subjects Objective: To rule out any
kind of device this may be of help in future for low vision patients via
emmetropic subjects. Material & Methods: The prospective study consists 200 emmetropic subjects of age
ranging from 15 to 35 years. The all subject has been asked to read Hindi
newspaper of same fonts under same room illumination, magnification and under a
constant time period of 1 minute with 5 low vision devices (LVD). The LVD uses
were 2x bar magnifier, 2x dome magnifier (55M), 2x dome magnifier (65M), 2x
spectacle magnifier and 2x pocket magnifier. Results: Among 200 emmetropic subjects, 126 were males and 74 were female.
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mean age of 200 subjects was 22.91 ± 3.92 years. The mean number of letters
read with 2x Bar Magnifier was 442.13 ± 165.316, 2x Dome Magnifier (55M) was
440.4 ± 173.352, 2x Spectacle Magnifier was 484.21 ± 486.316, 2x Pocket
Magnifier was 443.63 ± 170.374, 2x Dome Magnifier (65M) was 450.98 ± 259.690 in
one minute. When one device was compared with other four devices it was
found that none of the device showed statistically significance. Conclusion: None of the device was found to be statistically
significant, so equally all the magnifiers can be useful and can be used as a
startup for low vision patients.
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