[Visual performance of amblyopia before and after correcting higher order aberrations with adaptive optics system]

Area of Science:

• Ophthalmology
• Vision Science
• Optical Engineering

Background:

• Amblyopia, or 'lazy eye', is a developmental disorder affecting visual acuity.
• Higher order aberrations (HOAs) can further degrade visual quality in amblyopic eyes.

Purpose of the Study:

• To evaluate the impact of correcting HOAs on visual performance in monocular amblyopia.
• To determine if adaptive optics technology can enhance vision in amblyopic individuals.

Main Methods:

• Ten participants with monocular amblyopia underwent visual acuity (VA) and contrast sensitivity (CS) testing.
• HOAs were corrected using an adaptive optics system, and visual performance was reassessed.

Main Results:

• Significant improvements were observed in both VA (0.16-fold average increase, P = 0.005) and CS thresholds (0.34-fold average increase, P < 0.001).
• Improvements in CS were most pronounced at a high spatial frequency of 24 cycles per degree (cpd).

Conclusions:

• Correcting HOAs with adaptive optics can enhance visual performance in amblyopic eyes.
• HOAs demonstrably impact contrast sensitivity, especially at high spatial frequencies, in amblyopia.