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  • Title: Improvement of visual acuity after surgery for nystagmus.
    Author: Zubcov AA, Stärk N, Weber A, Wizov SS, Reinecke RD.
    Journal: Ophthalmology; 1993 Oct; 100(10):1488-97. PubMed ID: 8414409.
    Abstract:
    PURPOSE: The authors compared the preoperative and postoperative binocular visual acuities and eye movement recordings of patients who underwent eye muscle surgery consisting of the Anderson-Kestenbaum procedure or the artificial divergence procedure modeled after Cüppers, or a combination of both procedures, for the treatment of infantile nystagmus with head turn. METHODS: Binocular visual acuities and eye movement recordings by electro-oculography (EOG) were compared preoperatively with those done within 3 weeks postoperatively. Shifting and broadening of the minimal intensity zone and foveation time and changing of the waveform were measured. The treatment of 6 of 18 patients was based on the artificial divergence principle; for 7 patients, treatment was in accordance with the Anderson-Kestenbaum principle; and 5 patients had combined procedures. RESULTS: The improvement in binocular visual acuities was two Snellen lines or more in one of six patients in the artificial divergence group and four of five patients in the combined treatment group. The EOG recordings showed shifting of the minimal intensity zone toward the primary position in all three groups. A broadening of the minimal intensity zone occurred mostly in the artificial divergence and combined groups. Increases in foveation time and changes in waveforms from jerk to jerk with foveation were found in three of six patients in the artificial divergence group and in two of five patients in the combined group. CONCLUSION: With less muscle surgery, the artificial divergence and combined operations gave better vision improvement than the Anderson-Kestenbaum operation.
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