| 摘要 |
A method for prescribing a prism factor for eyeglasses for substantially correcting vertical and/or horizontal diplopia or double vision problems, which includes having a patient positioned for gazing at a target image while holding their head in a substantially fixed position, and then closing their affected eye for a period of time, whereafter they are instructed to open the affected eye and immediately report upon where a double image occurs upon a measurement grid associated with the target image continuing to be observed by their other eye, for permitting a prism factor to be prescribed relative to the measured distance between the target and double image created by the defective eye. The minimum necessary prism factor for correcting the vision of the defective eye to provide for merger of the target image observed by the other eye with that of the defective eye upon opening, permits maximization of the involvement of the eye muscles of the defective eye in combination with the prescribed prism for substantially extending the range of correction of the diplopia problem.
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