Extended Depth Of Focus Intraocular Lenses Implantation In Patients With Previous Refractive Laser Surgery

To evaluate visual performance after bilateral implantation of two extended depth of focus (EDOF) intraocular lenses in patients who had a history of prior refractive laser surgery.

Smahliou Eye-Clinic, Athens, Greece

This prospective study included 10 patients (6 females, 4 males) who had a previous laser vision correction and secondary underwent bilateral cataract surgery involving implantation of an EDOF IOL, either Tecnis Symfony (Johnson&Johnson Vision, USA), or Vivity (Alcon Laboratories, USA). Mean age of patients was 63.27±5.62 years.  Data collected included patient demographics, best corrected distance visual acuity (BCDVA), manifest refraction reported as spherical equivalent and steep and flat keratometric readings. All patients were evaluated preoperatively and 1, 3 and 6 months, as well as 1, 2, and 3 years postoperatively. No intraoperative or postoperative complications were occurred.

20 eyes were evaluated from 6-36 months after EDOF IOL implantation. Mean follow-up time was 24.10±11.34 months. Postoperatively,14 eyes were evaluated at 2 years and 10 eyes at our last follow up at 3 years. Mean BCDVA was improved significantly from 0.28±0.59 (SD) logarithm of minimum angle of resolution (logMAR) to 0.05±0.14 logMAR (p<0.001) 3 years postoperatively. Mean manifest spherical equivalent improved significantly from 1.64±3.26 D to -0.23±0.76 D at the 3rd postoperative year. Mean steep K and flat K keratometry readings did not show any statistically significant differences (p>0.05), compared preoperatively and at each postoperative exam period. 3 patients underwent YAG laser capsulotomy throughout our postoperative evaluation.

In conclusion, EDOF IOL implantation after corneal refractive surgery demonstrated effecrive refractive and visual outcomes in patients with a history of refractive surgery.