Monofocal lens implant is a type of intraocular lens that is used in cataract surgeries to replace the natural lens that is removed during the surgery. The monofocal lens implant provides sharp focus at a fixed distance, usually set for distance vision, but may require glasses for close-up tasks. There are several synonyms or alternative names for monofocal lens implants, including: 1. Single vision lens 2. Fixed focus lens 3. Standard lens 4. Traditional lens 5. Monovision lens 6. Distance vision lens All these names refer to the same type of lens implant that provides a clear vision at a fixed distance but needs aids like glasses or contact lenses for clear vision.