Comparison of Distance-Based Uncorrected Visual Acuity Based on the Optical Profile of Same Platform IOLs

Area of Science:

• Ophthalmology
• Biomedical Engineering
• Optics

Background:

• Cataract surgery involves replacing the natural lens with an intraocular lens (IOL).
• Different IOL optical designs aim to optimize visual acuity and reduce spectacle dependence.
• The TECNIS OptiBlue™ platform offers various IOL designs with distinct optical properties.

Purpose of the Study:

• To compare uncorrected visual acuity (UCVA) at multiple distances for four different IOL optical designs.
• To evaluate the performance of IOLs developed on the same platform.
• To assess contrast sensitivity with and without glare for each IOL type.

Main Methods:

• A cohort of 121 patients undergoing cataract surgery received one of four IOLs: ZCB00V (TE), ZXR00V (SF), DFR00V (SG), or DIB00V (EH).
• UCVA was measured at distances from 5 m to 30 cm one month post-operation.
• Contrast sensitivity (with and without glare) was also assessed.

Main Results:

• The SG (DFR00V) diffractive IOL showed improved UCVA at far and near distances (5m, 50cm, 40cm, 30cm).
• The SF (ZXR00V) diffractive IOL performed better at 1m.
• Non-diffractive EH (DIB00V) IOLs showed better UCVA at intermediate distances (1m, 70cm, 40cm, 30cm) compared to TE (ZCB00V).
• SF and EH groups had similar visual acuity and contrast sensitivity; SG group had reduced contrast sensitivity with glare.

Conclusions:

• The DFR00V IOL offers excellent UCVA from far to near, potentially achieving spectacle independence.
• The DFR00V IOL may lead to decreased contrast sensitivity compared to other tested IOLs.
• ZXR00V and DIB00V IOLs may provide similar visual quality and spectacle independence despite structural differences.