Changes in Anterior Chamber After Myopic and Hyperopic FS-LASIK

Area of Science:

• Ophthalmology
• Refractive Surgery
• Corneal Surgery

Background:

• Femtosecond laser-assisted in situ keratomileusis (FS-LASIK) is a common refractive procedure.
• Understanding post-operative anterior chamber changes is crucial for patient outcomes.

Purpose of the Study:

• To evaluate anterior chamber (AC) changes after FS-LASIK.
• To identify factors influencing these changes based on myopia degree, refractive status, and age.

Main Methods:

• 140 eyes of 87 patients undergoing FS-LASIK were analyzed.
• Anterior chamber depth (ACD), angle (ACA), and volume (ACV) were measured pre- and post-operatively.
• Patients were categorized by age and refractive error (myopia, hyperopia).

Main Results:

• Significant decreases in ACD, ACA, and ACV were observed in myopic patients of all ages (P < 0.001).
• Hyperopic patients showed a slight increase in ACD and ACA post-FS-LASIK.
• No correlation was found between myopia severity and AC parameter changes.

Conclusions:

• FS-LASIK leads to significant reductions in anterior chamber parameters for myopic eyes.
• A corneal magnification effect may explain the observed changes, particularly in hyperopic eyes.