Image quality of asymmetric spherical IOLs

Explanations

The measurement results of asymmetric spherical intraocular lenses (IOL) are listed below. All measurements are carried out using the measuring stand developed at the Institute in accordance with EN/ISO 11979-2 [ISO11979]. In accordance with ISO, the IOL to be tested is operated under in vivo-like conditions within an artificial eye in a water bath that simulates the rest of the eye (cornea and aqueous humor).

Each lens is generally measured in two refractive powers (usually +13dpt. and +26dpt, or the closest value provided by the manufacturer) in order to visualize the effects of spherical aberrations. A graph of the measured MTF and the value of the Strehl ratio (comparison between measured IOL and diffraction-limited ideal IOL) and the ISO criterion (modulation at 100 line pairs/mm) are shown for each measured lens. Explanations of the following graphs can be found under quality criteria.

List of the IOLs examined:

Detailed measurement results

AMO - AR40e

+13dpt.	+26dpt.
Strehl ratio: 0.97 ISO criterion: 0.59 (ISO%: 93.4%)	Strehl ratio: 0.68 ISO criterion: 0.34 (ISO%: 49.6%)-->-->-->-->

Bausch & Lomb - Akreos Adapt

+13dpt.	+26dpt.
Strehl ratio: 0.99 ISO criterion: 0.60 (ISO%: 94.9%)	Strehl ratio: 0.85 ISO criterion: 0.54 (ISO%: 78.8%)

PolyTECH (HOYA) - AF-1 (UV) VA-60BB

+13dpt.	+26dpt.
Strehl ratio: 0.88 ISO criterion: 0.51 (ISO%: 82.3%)	Strehl ratio: 0.83 ISO criterion: 0.52 (ISO%: 75.9%)

PolyTECH (HOYA) - AF-1 (UY) YA-60BB, Blue Blocker

+13dpt.	+26dpt.
Strehl ratio: 0.88 ISO criterion: 0.51 (ISO%: 82.3%)	Strehl ratio: 0.82 ISO criterion: 0.52 (ISO%: 75.9%)

Contact

Prof. Dr. rer.nat. Wilhelm Stork
Tel. 0721 / 608 - 42510, wilhelm.stork∂kit.edu