Comparative Visual Outcomes And Patient Satisfaction With Partial Range Of Field Versus Full Range Of Field Intraocular Lenses

To compare visual acuity, optical quality, and patient satisfaction following bilateral implantation of a non-diffractive enhanced depth of focus (EDOF) IOL (partial range of field) and a diffractive trifocal IOL (full range of field) in patients undergoing cataract surgery or refractive lens exchange (RLE).

Magrabi Eye Center, Jeddah, Saudi Arabia

This analysis presents results from two prospective clinical trials: one evaluating the Asqelio EDOF IOL (68 eyes, 34 patients) and the other the FineVision HP trifocal IOL (66 eyes, 33 patients). All patients underwent bilateral phacoemulsification. Visual acuity was measured at distance (4 m), intermediate (66 cm), and near (40 cm) using logMAR. Optical quality metrics, including Objective Scatter Index (OSI), and patient-reported outcomes such as spectacle independence and photic phenomena, were assessed at three months.

There was no statistically significant difference in uncorrected distance visual acuity and distance-corrected intermediate visual acuity at 66 cm (p >0.05). Distance-corrected near visual acuity at 40 cm was significantly better with trifocal (0.12 ± 0.09 logMAR) versus EDOF IOL (0.37 ± 0.13 logMAR, p = 0.001). Spectacle independence for near tasks was higher with trifocal (87%) than EDOF IOL (34%), while both groups showed high independence for distance and intermediate vision. OSI decreased significantly in cataract eyes and increased in RLE eyes for both lenses (p <0.05). Overall mean postoperative OSI 1.48 ± 0.72 in the EDOF group 1.61 ± 0.71 in the trifocal group (p < 0.001). EDOF IOLs resulted in lower rates of photic phenomena.

Both non-diffractive EDOF and diffractive trifocal IOLs offer excellent distance and intermediate vision and high patient satisfaction. The EDOF IOL minimizes visual disturbances while trifocal IOL delivers superior near vision and greater spectacle independence for near tasks. These findings support individualized IOL selection based on patient visual priorities.