Cao, Kai Authors' response to: Methodological challenges with randomized clinical trials for multifocal intraocular lenses (MFIOLs). [electronic resource] - Survey of ophthalmology - 392-394 p. digital Publication Type: Letter; Comment ISSN: 1879-3304 Standard No.: 10.1016/j.survophthal.2019.10.006 doi Subjects--Topical Terms: CataractCataract ExtractionHumansLenses, IntraocularMultifocal Intraocular LensesRandomized Controlled Trials as Topic