Visual Binocular Disorders and Their Relationship with Baropodometric Parameters: A Cross-Association Study

Area of Science:

• Ophthalmology
• Biomechanics
• Physiotherapy

Background:

• Nonstrabismic binocular dysfunctions can impact visual perception and motor control.
• Baropodometric analysis provides objective measurements of foot pressure and load distribution.

Purpose of the Study:

• To investigate the relationship between nonstrabismic binocular vision dysfunctions and baropodometric parameters.
• To determine if specific binocular vision anomalies correlate with altered foot biomechanics.

Main Methods:

• 106 participants underwent binocular vision assessments, including heterophoria, fusional vergence ranges, and vergence facility.
• Posturography was performed using the FreeMED baropodometric platform to measure foot surface, load, and pressure.
• Statistical analysis was used to compare baropodometric data between groups with normal and abnormal binocular vision findings.

Main Results:

• Participants with abnormal positive fusional vergence (PFV) near blur/recovery showed significant differences in total foot area, forefoot area, forefoot load, and rearfoot load (left vs. right foot).
• Subjects not meeting Sheard's criterion (distance), indicating unstable binocular vision, exhibited significant differences in maximum left vs. right foot pressure.

Conclusions:

• Nonstrabismic binocular dysfunctions are associated with measurable alterations in baropodometric parameters.
• These findings suggest a potential link between visual system stability and postural control as assessed by foot pressure distribution.