Resumen de Visual acuity at different contrast through an implantable collamer lens

C. Pérez Vives, Lurdes Belda Salmerón, Alberto Domínguez Vicent, César Albarrán Diego, Robert Montés Micó

• PURPOSE: To evaluate visual acuity (VA) at different contrast of the Implantable Collamer Lens (ICL) for different powers.

  METHODS: An adaptive optics visual simulator (crx1, Imagine Eyes, Orsay, France) was used to measure 2 different powers (–3 and –15 diopters [D]) of ICLs and simulate the ICL wavefront aberration’s pattern. VA at difference contrast (10, 50 and 100%) was evaluated at 3 and 5 mm pupils.

  RESULTS: ICL power affected the VA, since we found negative spherical aberration, which was greater when the ICL power was increased. At 3 mm pupil, we found statistically significant differences between both ICL powers at low-contrast (p < 0.05). At 5 mm pupil, statistically significant differences between both ICLs were found for all contrasts (p < 0.05).

  CONCLUSIONS: The ICL provides good VA, which decreases when the ICL power increases, but these losses are offset by the effect of the spectacle magnification