Fusion Lock Diameters And The Forced Vergence Fixation Disparity Curve In Symptomatic Subjects.

There have been previous studies investigating the effect of fusion lock diameters on forced vergence fixation disparity with both asymptomatic and symptomatic patients. A recent study showed no effect with variable fusion lock diameters with asymptomatic patients while symptomatic patients showed a noticeable change in the disparity curves. The intent of this
investigation is to determine characteristic patterns of forced vergence fixation disparity curves with variable fusion lock diameters in symptomatic patients.