Higher Order Aberrations Induced by Light Adjustable Lens Treatment

Area of Science:

• Ophthalmology
• Optometry
• Vision Science

Background:

• Cataract surgery and refractive lens exchange are common procedures.
• Light Adjustable Lens (LAL) technology offers customizable visual correction post-implantation.
• Understanding induced aberrations is crucial for refractive outcomes.

Purpose of the Study:

• To quantify higher order aberrations (HOAs) induced by Light Adjustable Lens (LAL) treatments.
• To assess the clinical significance of these induced HOAs.

Main Methods:

• Retrospective chart review of patients undergoing LAL implantation.
• Corneal, internal, and total HOAs measured using iTrace aberrometry.
• HOAs analyzed before adjustments, at lock-in, and post-treatment.

Main Results:

• Mean total HOAs induced were minimal (-0.005 μm), with no values exceeding 0.3 μm.
• Eyes with prior refractive surgery showed a statistically significant increase in induced HOAs (P = .02).
• No other significant differences found in subgroup analyses.

Conclusions:

• LAL treatments appear safe regarding HOA induction.
• Prior refractive surgery is a potential risk factor for increased HOAs post-LAL treatment.
• Further investigation into managing HOAs in this subgroup is warranted.