Refractive stability

29.10.2026 4 min read

O Formula with OCT ray tracing: was it more accurate?

Cataract IOL IOL power calculation Total keratometry Refractive stability IOL calculation Formula validation O Formula Ray-tracing IOL calculation

In a 325-eye series, O Formula had lower error than four contemporary formulas, but did not differ significantly from SRK/T and was tested at one center.

doi: 10.1016/j.ajo.2025.08.049

28.10.2026 4 min read

enVista Aspire after cataract surgery: a real-world series

Cataract IOL Toric IOL Refractive stability Enhanced monofocal IOL Intermediate vision enVista Aspire enVista Aspire Toric Real-world evidence

In a 141-eye series, Aspire and Aspire Toric produced good distance and intermediate results, but no control group allowed comparison with a standard monofocal IOL.

doi: 10.1007/s40123-026-01473-3

20.10.2026 4 min read

When does refraction stabilize after a C-loop IOL?

Cataract IOL Phacoemulsification Refractive stability C-loop IOL

In a 43-eye series, refraction after a new hydrophobic monofocal C-loop IOL shifted myopically during the first month, while accuracy improved substantially by week one.

doi: 10.1097/MD.0000000000050119