Table 1

Individual visual motion detection threshold values for patients and controls

Patient (age)DiagnosisPatientsControls(Age)
VMDh (deg/s)VMDv (deg/s)VMDh (deg/s)VMDv (deg/s)
1 (32)CPEO0.4870.4820.2430.164(33)
2 (49)CPEO0.420.4120.2940.253(50)
3 (69)MG0.360.4240.3980.241(71)
4 (73)IOI 0.5150.2130.348(70)
5 (44)MG0.470.3850.2130.348(44)
  • VMDh = horizontal visual motion detection threshold; VMDv = vertical visual motion detection threshold; CPEO = chronic progressive external ophthalmoplegia; MG = myasthenia gravis; IOI = idiopathic orbital inflammation.

  • This patient was unable to perform the test horizontally.

  • The differences between patient and control VMDh and VMDv were statistically significant with p<0.023 and 0.007 respectively ( two tailed t test).