| Popis: |
SUMMARY A review of 108 cases of amblyopia is given; 36 (32 per cent.) were cured. Directions are given for the use of the telescopic amblyoscope as a prognostic instrument and for the treatment of amblyopia. Obstacles are diagnosed by orthopic examination. To obtain permanency of the improved vision in an amblyopic eye, it is important to obtain, in addition to the improved vision, fusion with amplitude. Vision should be re-checked on a number of occasions for a number of months. Suppression, muscle, imbalance, squints with or without normal correspondence are discussed as to their relative importance in the causation or delay of cure of amblyopia; excepting the cases of congenital amblyopia which are always incurable. Anisometropia and squint with abnormal correspondence, or amblyopia with a high angle of squint, may be instrumental in either the causation, the prolongation, or failure of cure in amblyopia. It appears that if the adult past the age of 45 years and the condition just mentioned are excepted, there is some hope for the amblyopic. With the telescopic amblyoscope, or some such device, a prognosis for the case can be given, especially for a child. The telescope has an added advantage–that of being used in treatment. Poor visual acuity (less than 20/200) is not always an indication of a poor result. A patient with a visual acuity of, for example, 20/40 in some instances has no better assurance of improvement than another patient with vision of 20/70 or 20/100. The same is true of anisometropia. Amblyopia with a very low degree of anisometropia may sometimes take longer to cure than when a slightly higher degree of the same condition is present. |
