The Galilean telescope has been used as an optical aid by low vision patients. The increase in size of the target caused by the magnification of the telescope allows the patient to then see the target. Normally sighted subjects were employed in this experiment. The Galilean telescope was used to determine its effect on the accuracy of these subjects while firing handguns. Comparisons between a group of average shooters and a group of more experienced shooters revealed a decrease in shot group size of the average shooters and an increase in the range or variability between group sizes of the more experienced shooters. Both were statistically significant at the p < .05 level. No statistically relevant data was recovered when both groups were analyzed together.
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