Relationships Between Haloes and Objective Visual Quality in Healthy Eyes

Area of Science:

• Ophthalmology
• Optometry
• Vision Science

Background:

• Haloes and objective optical quality are key indicators of visual function.
• Understanding their relationship in healthy eyes is crucial for clinical assessment.

Purpose of the Study:

• To establish normal values for disc halo size and objective optical quality in healthy eyes.
• To determine the relationship between haloes and objective optical quality in a healthy young population.

Main Methods:

• A cross-sectional study measured haloes and objective optical quality using the Optical Quality Analysis System (OQAS) and a vision monitor.
• 138 healthy young men participated, with measurements taken from their right eyes.

Main Results:

• Mean disc halo size was 77.17 ± 25.03 arcmin.
• Objective optical quality measures included objective scatter index (OSI) and Strehl ratio (SR).
• Disc halo size independently correlated with OSI and minimum pupil size (R² = 17.7%).

Conclusions:

• Reference values for disc halo size and objective optical quality were established for healthy young subjects.
• Eyes with poorer objective vision quality demonstrated larger haloes.
• OQAS and halo measurements are clinically valuable for quantifying vision quality.