The function of the orthoptic technician is to aid the ophthalmologist in establishing habits of correct binocular vision. In establishing any habit, the desired activity must first be physically possible for the patient ; it must be within his capacity to perform the act. It is not always possible to determine with a single lesson whether the function of binocular vision is impossible or merely in abeyance. Once the possibility of binocular vision is established, however, the steps which follow are a typical educational process and constitute the second aspect of habit training.
The ophthalmologist may conveniently think of his patients for orthoptic training as falling into two classes : those on whom he expects to operate and those for whom he does not expect to use operative procedure.
For the first group he may describe preoperative and postoperative training. Preoperative orthoptics may begin with the treatment of amblyopia ex anopsia. Orthoptics
LANCASTER JE. THE ORTHOPTIC TECHNICIAN AS AN AID TO THE OPHTHALMOLOGIST. Arch Ophthalmol. 1940;23(3):560–563. doi:10.1001/archopht.1940.00860130626011
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