Readalyzer as a Novel Approach in the Visual Biofeedback Treatment of Congenital Nystagmus: A Case Study

BACKGROUND: The treatment of nystagmus remains a clinical enigma. While many non-surgical therapeutic options have been advanced, and tried with success, relatively few are typically offered to most patients. CASE STUDY: We present a multi-phase, detailed case study of an adult with congenital nystagmus, and later an acquired visual field defect, in which three distinct forms of vision-based, biofeedback therapy were incorporated: the primary one was a novel use of the Readalyzer eye movement system, in conjunction with conventional oculomotor-based visual scanning therapy and yoked prisms. CONCLUSION: After completion of the multi-phase treatment, the patient’s nystagmus reduced, and both visual acuity and ambulation improved. The present findings are consistent with earlier results, which suggested a multi-modal therapeutic approach in those with nystagmus.