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July 1968

Reading Aids for the Partially SightedFactors Which Determine Success or Failure

Author Affiliations

From the Wilmer Ophthalmological Institute of the John Hopkins University and Hospital, Baltimore.

Arch Ophthalmol. 1968;80(1):35-38. doi:10.1001/archopht.1968.00980050037005

A successful reading aid is defined for this study as one which the patient uses to read books, magazines, or newspapers for at least 15 minutes at a time. The aid is considered a partial success if the reading time is less, or if only larger print can be read.

A low incidence of failure was found in 513 unselected patients. Occasional failures were associated with a changing level of visual impairment, or a very small usable field of vision. The majority of those not helped with a reading aid either required high magnification, or were of advanced age, or both. Even of those with a poor prognosis, ie, over 70 with reading vision at 40 cm of 10M or worse, 48% were nevertheless helped by a reading aid.