5 Key Takeaways

• 1

  Subjective refraction techniques have remained largely unchanged since the early 20th century despite advancements in eye care.

• 2

  Scleral lenses are commonly prescribed for irregular astigmatism, particularly in patients with keratoconus.

• 3

  Recent algorithm-assisted refraction methods may provide more accurate spherical equivalents compared to conventional techniques.

• 4

  Variability in subjective refraction results can be influenced by practitioner experience and the limitations of conventional phoropters.

• 5

  The study suggests that algorithm-based refraction is a viable alternative for optimizing scleral lens fittings in patients with irregular corneas.