Optical performance of monofocal versus multifocal intraocular lenses.

In their recent paper, Ortiz et al. studied the optical performance of monofocal and multifocal intraocular lenses (IOLs) in the human eye. Their main conclusion was that of the IOLs studied, the hybrid refractive–diffractive IOLwas the least affected by pupil diameter in terms of intraocular aberrations. This IOL type also showed a smaller increase in optical aberrations during pupil dilation. I question the validity of the authors’ comparison of monofocal and multifocal IOLs because they failed to verify 2 conditions.