Assessing Refraction - Summary - MDSpire

Assessing Refraction

Explore how algorithm-assisted refraction systems may enhance scleral lens fitting for patients with irregular corneas, revealing important insights from recent studies.

  • By

  • Melissa Barnett, OD, FAAO, FSLS

  • September 1, 2025

  • 4 min

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Objective:

To evaluate the effectiveness of algorithm-assisted refraction compared to conventional methods in patients with irregular corneas fitted with scleral lenses.

Key Findings:
  • Algorithm-based refraction yielded a more positive spherical equivalent than conventional refraction.
  • Both methods showed comparable high and low-contrast visual acuity.
  • The study suggests algorithm-based refraction is a viable alternative for over-refraction in patients with irregular corneas.
Interpretation:

The findings indicate that advancements in refraction technology can enhance visual correction accuracy, particularly for patients using scleral lenses.

Limitations:
  • The sample size was small, limiting the generalizability of results.
  • Variability in subjective refraction may be influenced by practitioner experience.
Conclusion:

Algorithm-assisted refraction may improve the fitting process for scleral lenses in patients with irregular corneas, warranting further research.

Original Source(s)

Assessing Refraction

  • by Melissa Barnett, OD, FAAO, FSLS

  • September 1, 2025

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