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December 1954


AMA Arch Ophthalmol. 1954;52(6):968-970. doi:10.1001/archopht.1954.00920050972017

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To the Editor:  —The following is a reply to the questions asked by Dr. Hewitt.

Question 1.  —Is it not quite possible that if this new definition or standard is accepted as authentic, it will only add to the confusion that concerns torsion?

Answer:  This certainly is possible. On the other hand, any new light on the nature of false or apparent torsion and the means by which false torsion may be avoided when observing real torsion should be helpful.

Question 2.  —Do you have any evidence from your investigation that an independent or a pure torsional movement occurs as a normal function of the eye?Answer: Yes. When the eye moves from a secondary or tertiary position to any other secondary or tertiary position, it undergoes real torsion. This includes nearly all movements of the normal eye, since the eye rarely begins its motion exactly from the primary position.

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