Which is more likely to be caused by a congenital strabismus: eccentric fixation or eccentric viewing?

Which is more likely to be caused by a congenital strabismus: eccentric fixation or eccentric viewing?

• A. Eccentric Fixation
• B. Eccentric Viewing
• C. Neither
• D. Both

Answer: (A)

Congenital strabismus disrupts normal alignment from early life, so the visual system often adapts by using a nonfoveal retinal point for fixation to avoid diplopia and maintain single vision. This shift to a nonfoveal fixation point is called eccentric fixation. Eccentric viewing, by contrast, is a deliberate strategy used by people with central vision loss (like macular disease) to fixate with a preferred nonfoveal retinal area; it’s not typically a consequence of early misalignment. Therefore, eccentric fixation is more likely to be caused by congenital strabismus.

Congenital strabismus disrupts normal alignment from early life, so the visual system often adapts by using a nonfoveal retinal point for fixation to avoid diplopia and maintain single vision. This shift to a nonfoveal fixation point is called eccentric fixation. Eccentric viewing, by contrast, is a deliberate strategy used by people with central vision loss (like macular disease) to fixate with a preferred nonfoveal retinal area; it’s not typically a consequence of early misalignment. Therefore, eccentric fixation is more likely to be caused by congenital strabismus.