PURPOSE: To investigate the ocular torsion of V patterns. METHODS: Twenty-two in hospital V patterns patients underwent bilateral inferior oblique muscles myectomy for inferior oblique overacting and hortizon recti underwent recess-resection procedure to correct hortizon devation. Objective cycloposition was assessed by fundus photograph before and 7 days after surgery in all cases. The photographs was stored in computer, and the disc-fovea angle was measured by means of drawing picture software. As well as the deviation, oblique muscle function was recorded before and after surgery. RESULT: Seventeen cases were bilateral ocular excyclotropia, 4 cases were monocular excyclotropia and one case was annual. The disc-fovea angle of right eyes and left eyes before operation is 15.67 degrees +/- 5.72 degrees and 16.59 degrees +/- 6.69 degrees. The comparisons among V patterns and normal average showed significant differences (P < 0.001). The disc-fovea angle of right eyes and left eyes after operation is 5.24 degrees +/- 5.87 degrees and 7.17 degrees +/- 5.40 degrees. There is no statistic difference between normal average (P > 0.5). The deviation between up- and down 25 degrees is 23.1 +/- 6.8 before surgery, as well as the one is 2.0 +/- 2.25 one week postoperatively. All cases have bilateral inferior oblique overaction, and diminished but one case still has unilateral moderate overaction 7 days after surgery. CONCLUSION: There is objective cyclotropia in case of V patterns, and the objective torsion is normal after weakening overacted inferior oblique muscles.
PURPOSE: To investigate the ocular torsion of V patterns. METHODS: Twenty-two in hospital V patterns patients underwent bilateral inferior oblique muscles myectomy for inferior oblique overacting and hortizon recti underwent recess-resection procedure to correct hortizon devation. Objective cycloposition was assessed by fundus photograph before and 7 days after surgery in all cases. The photographs was stored in computer, and the disc-fovea angle was measured by means of drawing picture software. As well as the deviation, oblique muscle function was recorded before and after surgery. RESULT: Seventeen cases were bilateral ocular excyclotropia, 4 cases were monocular excyclotropia and one case was annual. The disc-fovea angle of right eyes and left eyes before operation is 15.67 degrees +/- 5.72 degrees and 16.59 degrees +/- 6.69 degrees. The comparisons among V patterns and normal average showed significant differences (P < 0.001). The disc-fovea angle of right eyes and left eyes after operation is 5.24 degrees +/- 5.87 degrees and 7.17 degrees +/- 5.40 degrees. There is no statistic difference between normal average (P > 0.5). The deviation between up- and down 25 degrees is 23.1 +/- 6.8 before surgery, as well as the one is 2.0 +/- 2.25 one week postoperatively. All cases have bilateral inferior oblique overaction, and diminished but one case still has unilateral moderate overaction 7 days after surgery. CONCLUSION: There is objective cyclotropia in case of V patterns, and the objective torsion is normal after weakening overacted inferior oblique muscles.