Intraoperative Measurement of Effective Lens Position During Femtosecond Laser-Assisted Cataract Surgery
Narrative Responses:
Purpose
To measure the effective lens position during femtosecond laser cataract surgery guided by optical coherence tomography (OCT).
Methods
A prospective, interventional, single surgeon study that included 50 eyes was performed in our clinic to measure the ELP during the OCT performed by the femtosecond laser platform. The diameter of the cristalline lens was measured from ecuator to ecuator and the ACD was measured both from epithelium and endothelium to the anterior christaloid. Postoperative anterior segment OCT images were superimposed over those displayed by the femtosecond laser intraoperatively to compare the estimated and the final ELP. Measurements of ELP were taken in account to the election of the intraocular lens power in order to achieve plano postoperative refraction.
Results
Preliminary results show a postoperative refraction of ± 0.50 D in 94,4% of the patients, and a difference between the estimated and the final ELP of 18 ± 8 microns. Final results still have to be completed.
Conclusion
Measurement of ELP intraoperatively during femtosecond laser cataract surgery may predict effectively the final position of the lens probably improving refractive outcomes.