Gabriele Gusek-Schneider1, Andrea Boss. 1. Eye Hospital and Outpatient Clinic Friedrich-Alexander-University of Erlangen-Nuremberg, Erlangen, Germany. gabriele.gusekschneider@uk-erlangen.de
Abstract
PURPOSE: To provide a longer follow-up after strabismus surgery for secondary sensory strabismus. PATIENTS AND METHODS: We investigated the follow up of 26 patients operated on for secondary strabismus: 7 convergent (SSC), 19 divergent (SSD). Inclusion criteria were fellow eye without any morphological disorder, and exclusion criteria were possible motility disorders or mechanical restriction: The mean follow-up time after surgery was 5 years 8 months +/- 4 years (1 year 8 months to 12 years 8 months) for SSC and 5 years 10 months +/- 3 years, 8 months (7 months to 13 years 3 months) for SSD, with p = 0.86. A statistical analysis of the results was performed with SPSS version 11.5 (Statistical Products and Service Solutions, SPSS Inc., United States). All statistical tests were 2-sided, and the threshold of significance was set to p < or = 0.05. MAIN RESULTS: The angle of deviation for far distance was reduced from 20 +/- 9 (11 to 35) to -2 +/- 4 (-8 to 6) degrees for SSC and from -21 +/- 8 (-42 to -10) to -2 +/- 5 (-15 to 4) degrees for SSD. A correlation between the postoperative angle in far distance and the visual acuity (lg visus) of the affected eye was not found for SSC: r = -0.5, p = 0.24, but was observed for SSD: r = 0.52, p = 0.02. In patients with perforating injury, a correlation of the postoperative angle in far distance to the age at injury of the affected eye was found (r = 0.6, p = 0.05). Two of the seven patients with SSC and one of 19 with SSD complained of double vision pre- and post-operatively. All patients with SSC and with SSD were satisfied with the postoperative angle of deviation. CONCLUSION: The results of this study indicate that, in general, we can recommend eye muscle surgery in secondary strabismus.
PURPOSE: To provide a longer follow-up after strabismus surgery for secondary sensory strabismus. PATIENTS AND METHODS: We investigated the follow up of 26 patients operated on for secondary strabismus: 7 convergent (SSC), 19 divergent (SSD). Inclusion criteria were fellow eye without any morphological disorder, and exclusion criteria were possible motility disorders or mechanical restriction: The mean follow-up time after surgery was 5 years 8 months +/- 4 years (1 year 8 months to 12 years 8 months) for SSC and 5 years 10 months +/- 3 years, 8 months (7 months to 13 years 3 months) for SSD, with p = 0.86. A statistical analysis of the results was performed with SPSS version 11.5 (Statistical Products and Service Solutions, SPSS Inc., United States). All statistical tests were 2-sided, and the threshold of significance was set to p < or = 0.05. MAIN RESULTS: The angle of deviation for far distance was reduced from 20 +/- 9 (11 to 35) to -2 +/- 4 (-8 to 6) degrees for SSC and from -21 +/- 8 (-42 to -10) to -2 +/- 5 (-15 to 4) degrees for SSD. A correlation between the postoperative angle in far distance and the visual acuity (lg visus) of the affected eye was not found for SSC: r = -0.5, p = 0.24, but was observed for SSD: r = 0.52, p = 0.02. In patients with perforating injury, a correlation of the postoperative angle in far distance to the age at injury of the affected eye was found (r = 0.6, p = 0.05). Two of the seven patients with SSC and one of 19 with SSD complained of double vision pre- and post-operatively. All patients with SSC and with SSD were satisfied with the postoperative angle of deviation. CONCLUSION: The results of this study indicate that, in general, we can recommend eye muscle surgery in secondary strabismus.