Comparative Evaluation of Field of View Across Widefield Retinal Imaging Systems.

ABSTRACT:

Purpose

Ultra-widefield retinal imaging is critical for diagnosing peripheral retinal diseases, but discrepancies in field of view (FOV) definitions hinder system comparisons. This study aims to evaluate the FOV performance of six widefield or ultra-widefield retinal imaging systems using a simplified eye phantom model and in vivo demonstration in a healthy subject.

Methods

A custom eye phantom model with concentric ring patterns and geometric markers was used to assess FOV and distortion across six imaging systems, including Nikon Optos, Natus RetCam, Intalight Dream OCT, Siloam Vision's contact and non-contact iCam-OCT, and OHSU table-top UWF OCT. The phantom model eliminated anatomic variability, enabling controlled measurements. Imaging was also performed on a healthy em

SUBMITTER: Ni S 

PROVIDER: S-EPMC12633777 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature