Is This the New Norm?: Large Pupils and Visual Performance - Summary - MDSpire

Is This the New Norm?: Large Pupils and Visual Performance

Explore how pupil size impacts night vision and discover therapeutic strategies for improvement, as presented in a compelling clinical case.

  • By

  • Mile Brujic, OD, FAAO

  • DAVID L. KADING, OD, FAAO

  • January 1, 2026

  • 5 min

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Objective:

To explore the impact of pupil size on visual performance, particularly in low-light conditions.

Key Findings:
  • Larger pupils under low light can exacerbate optical aberrations, leading to decreased visual quality.
  • Pupil constriction can enhance depth of focus, benefiting presbyopic patients.
  • Brimonidine effectively reduces pupil size in low-light conditions, improving night vision.
Interpretation:

Pupil size significantly affects visual performance, particularly in low-light scenarios, and can be managed therapeutically to enhance vision.

Limitations:
  • The study is based on a single clinical case, limiting generalizability.
  • Further research is needed to confirm findings across diverse populations.
Conclusion:

Understanding and managing pupil size is crucial for improving visual performance, especially for individuals with night vision issues.

Original Source(s)

Is This the New Norm?: Large Pupils and Visual Performance

  • by Mile Brujic, OD, FAAO, DAVID L. KADING, OD, FAAO

  • January 1, 2026

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