Satisfaction and Visual Outcomes with a Non-Diffractive EDOF IOL in Post-Myopic LASIK and PRK Patients with High...

Area of Science:

• Ophthalmology
• Refractive Surgery
• Optics

Background:

• Patients with a history of myopic refractive surgery, such as LASIK or PRK, may develop high corneal spherical aberrations.
• These aberrations can impact visual quality and patient satisfaction with subsequent intraocular lens (IOL) implantation.
• Extended depth of focus (EDOF) IOLs offer a potential solution for visual rehabilitation in this specific patient group.

Purpose of the Study:

• To evaluate the patient satisfaction and visual outcomes of extended depth of focus (EDOF) intraocular lens (IOL) implantation.
• The study focused on patients previously treated for myopia who exhibit high corneal spherical aberrations.
• Assessed the efficacy of Vivity and Vivity toric EDOF IOLs in this challenging patient cohort.

Main Methods:

• A non-interventional, observational, ambispective, bilateral study was conducted at a single center.
• Twenty patients (40 eyes) with a history of myopic LASIK/PRK and high corneal spherical aberrations received bilateral Vivity or Vivity toric EDOF IOLs targeting emmetropia.
• Evaluated visual acuities (distance, intermediate, near), binocular defocus, and patient-reported outcomes using validated questionnaires (IOLSAT, QUVID).

Main Results:

• Mean binocular visual acuities were excellent: UDVA 0.02 logMAR, UIVA 0.14 logMAR, and UNVA 0.24 logMAR.
• High percentages of eyes achieved excellent refractive outcomes: 95% ≤0.50 D spherical equivalent and 98% ≤0.50 D astigmatism.
• Minimal visual disturbances were reported (0-5% bothered by halo, starbursts, glare), with 90% reporting "Never" or "Rarely" needing spectacles for distance vision.

Conclusions:

• Vivity and Vivity toric EDOF IOL implantation demonstrates favorable visual outcomes in post-myopic refractive surgery patients with high corneal spherical aberrations.
• The study indicates high patient satisfaction and functional vision across distance, intermediate, and near visual tasks.
• EDOF IOLs represent a viable option for visual rehabilitation in this complex patient population, offering good spectacle independence.