It may not be amiss to consider practically some of the questions that arise daily in the practice of the average ophthalmologist. For the younger ophthalmologists especially, who may not have met the unusual problems and who have been taught to follow the rules given in most works on refraction, the following remarks may be of some aid.
Rules are made to be broken, and the general rules are made more keenly interesting by a study of the exceptions to such rules. Not without a routine test of the muscle balance for distance and for near and with the eye in the six cardinal positions and a test of the powers of convergence and accommodation can unusual conditions be consistently found. Later, if and when glasses are prescribed, it is equally important to make tests to find if the glasses are doing what they are supposed to do or
WHITE JW. MUSCULAR ANOMALIES AND AMETROPIA: A PRACTICAL CONSIDERATION. Arch Ophthalmol. 1937;18(6):892–896. doi:10.1001/archopht.1937.00850120026002
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