Session: John Lee (Rapid Fire) Poster Session

Measurements of objective ocular torsion using a novel definition

Introduction

To compare ocular torsion measurements using conventional fundus photography (CFP) and optical coherence tomography (OCT) with a novel definition of cyclotorsion.

 

Methods

We enrolled healthy children aged 3 to 12 years as participants. The disc-center-fovea angle (DFA) was employed to assess ocular torsion using OCT and CFP. The values obtained from both the right and left eyes were summed to derive a single value, compensating for the effect of head tilt during measurement.

 

Results

A total of 86 healthy children were enrolled. The DFA angles using OCT and CFP were -11.57 ± 5.27 and -12.07 ± 5.66 degrees, respectively. There was a strong correlation between OCT and CFP in all patients, with a Pearson correlation of 0.74 and an ICC of 0.74, respectively (P < 0.001).

 

Conclusions

Utilizing the new definition of torsion, the study revealed a significant correlation in DFA measurements obtained through OCT and CFP, emphasizing the comparability of torsion measurements. This underscores the feasibility of employing either modality in pediatric populations.