Short answer
Monofocal IOL gives excellent distance vision — reading glasses still needed for near. Trifocal IOL (e.g. PanOptix) adds dedicated near and intermediate focal points — most patients achieve spectacle independence for everyday tasks, with some initial night halos that usually adapt over 4–8 weeks.
Monofocal vs trifocal at a glance
| Monofocal IOL | Trifocal IOL | |
|---|---|---|
| Distance | Excellent | Excellent |
| Intermediate (screens) | Needs glasses | Excellent |
| Near (reading) | Reading glasses required | Excellent |
| Night halos | Minimal | Moderate initially — usually adapt |
| Best for | Happy with readers; sharpest night vision priority | Full spectacle independence priority |
| Typical NHS default | Standard monofocal | Premium upgrade — private or abroad |
What about EDOF as a middle option?
EDOF IOL sits between monofocal and trifocal — excellent distance and intermediate, very good near with occasional help for fine print, and smoother night vision than trifocal.
Read: Trifocal vs EDOF IOL.
Astigmatism and IOL choice
Monofocal, trifocal, and EDOF IOLs all come in toric designs — correcting astigmatism and cataract in one procedure.
Choosing an IOL?
Tell us your reading and night-driving priorities — monofocal vs trifocal explained.
Personalised recommendation within 2 hours.
Related: Cataract treatment options · Pillar IOL section