KEY TAKEAWAY POINTS
- SS-OCT biometers employ different approaches for keratometry that result in slightly different measurements
- Differences in keratometry readings are small, however, significant trends towards flatter K-readings for the IOLMaster 700, Eyestar 900 and OA-2000 in comparison to ARGOS® were noted
- Keratometry readings have a limited impact on the error sources of monofocal IOL power calculations and therefore cause minimal changes in refractive outcomes
- Keratometry contributes the most significant error source in toric IOL power calculations and is likely to influence refractive outcomes