This site is targeted at medical and radiology professionals, contains user contributed content, and material that may be confusing to a lay audience. Use of this site implies acceptance of our Terms of Use.

Binocular distance

Dr Abhilash Sandhyala and Radswiki et al.

The binocular distance (BOD) is a measurement between the two lateral (outer) canthi of each eye. It is sometimes used as a accessory fetal biometric parameter where it is often documented on both 2nd trimester anatomy scans on axial brain scans. The largest diamter of the orbit should be used and it is considered useful from 7 weeks through to term 1. There can be some difference between ethnic groups 2.

It is increased with hypertelorism and reduced with hypotelorism.

See also 

This article is a stub, which means it needs more content. You can contribute to Radiopaedia.org too. Just register and edit... every little bit helps.

Updating… Please wait.
Loadinganimation

 Details successfully updated.

Error Unable to process the form. Check for errors and try again.

 Thank you for updating your details.