Eye surgery showdown: does tunnel direction affect lens fixation success?

This study compares two ways of creating scleral tunnels during flanged intrascleral intraocular lens (IOL) fixation surgery, a procedure used when the eye's natural lens support is missing or damaged. Researchers are testing whether making the tunnel horizontally (parallel to the limbus) or vertically (perpendicular) leads to better visual accuracy and fewer complications over two years. The trial involves 107 adults with lens dislocation or aphakia (no lens capsule). The main goal is to see how many eyes achieve a refraction within half a diopter of the target.