Stability of visual acuity in amblyopic patients after visual maturity

Graefes Arch Clin Exp Ophthalmol. 1988;226(2):154-7. doi: 10.1007/BF02173306.


One hundred thirty patients with strabismic amblyopia who underwent full-time occlusion therapy (FTO) and were followed through to at least 9 years of age were evaluated to determine the stability of visual acuity after visual maturity (after 9 years of age). Of these 130 patients, 89 are included in this review. At the conclusion of the FTO therapy, 92% (82/89) had attained a visual acuity of 20/40 or better, 6% (5/89) had attained 20/50-20/100, and 2% (2/89) remained at 20/200 or less. Of the nine patients in this series in whom patching was initiated between the ages of 6 and 9 years of age, a good visual result was seen in 89% (8/9), with 63% (5/8) of those attaining 20/20 vision. The final visual acuity in this group of patients was taken at an average patient age of 15.9 years. In 75% of the patients (67/89) there was no change in visual acuity over time, while 17% (15/89) showed a one- or two-line decrease, and in 8% (7/89) vision dropped more than two lines. Of those patients who had greater than or equal to 20/40, 88% (56/64) who had a posttreatment visual acuity of 20/20 showed no change at the final evaluation, but only 50% (9/18) of those whose posttreatment vision was between 20/25 and 20/40 were stable. In those patients who needed part-time occlusion (PTO) to maintain equal visual acuity, their stability appeared to be the same as the vision of those whose vision was maintained without PTO.

Publication types

  • Comparative Study

MeSH terms

  • Adolescent
  • Age Factors
  • Amblyopia / therapy*
  • Bandages
  • Child
  • Child, Preschool
  • Follow-Up Studies
  • Humans
  • Infant
  • Retrospective Studies
  • Time Factors
  • Vision, Ocular*
  • Visual Acuity*