Surgeon recommends firms manufacture IOLs in 0.25 D steps

Article

It would be helpful if IOL manufacturers made lenses available in 0.25 D steps and provided more detailed information regarding the optical design since refractive outcomes can now be predicted more accurately.

It would be helpful if IOL manufacturers made lenses available in 0.25 D steps and provided more detailed information regarding the optical design since refractive outcomes can now be predicted more accurately, according to Thomas Olsen from the University Eye Clinic, Aarhus Hospital, Denmark.

Dr Olsen obtained the refractive results from several thousand IOL implantations using optical biometry and compared them with the predictions made using regression methods, thick lens vergence methods and exact ray tracing methods. In each case the predictions were based on previously described true ACD-prediction algorithms.

It was discovered that thick lens vergence and exact ray tracing methods are more effective than regression methods and that refractive outcomes can be predicted accurately well below 0.5 D, which is the current power availability step.

The results indicate that it would be useful if IOLs were available in 0.25 D steps.

Newsletter

Get the essential updates shaping the future of pharma manufacturing and compliance—subscribe today to Pharmaceutical Technology and never miss a breakthrough.

Recent Videos
Jay Chhablani, MD, shares late-breaking data from the ArMaDa trial, investigating gene therapy for Geographic Atrophy and dry age-related macular degeneration, at EURETINA
Editorial advisory board member Alexandra Miere, MD, PhD, speaks about the ACTOR and HERMES studies at the 2025 European Society of Retina Specialists (EURETINA) Congress
María Berrocal, MD, speaks about the Vit-Buckle Society symposium hosted at the 2025 European Society of Retina Specialists (EURETINA) annual meeting
© 2025 MJH Life Sciences

All rights reserved.