Comparison Of Modulation Transfer Function Curves Measured Through A Model Eye Using A Positive Usaf Resolution Test Chart Among Three Intraocular Lenses

To compare the modulation transfer function (MTF) curves measured through a model eye using a positive USAF resolution test chart among the Precizon monofocal, TECNIS Eyhance, and Precizon Go IOLs.

Model eye experiment to meaure MTF values of the postive USAF resolution test chart at 15 CPD and 7.5 CPD.

The Precizon monofocal, Eyhance, and Precizon Go IOLs were used in the experiment. After each IOL was placed in the model eye with a pupil diameter of 3 mm, the positive USAF resolution test chart image was taken with the model eye according to the distance. The line width of each optotype in the positive USAF resolution test chart was converted to cycles per degree (CPD). The horizontal and vertical MTF value were measured from the image obtained through the mode eye experiments using MATLAB program. The root mean square of the horizontal and vertical MTF values was used to plot defocus curves for each IOL at 15 CPD and 7.5 CPD.

At far distance, the USAF resolution test chart image of the Eyhance IOL shows the blurriest compared to the monofocal and Precizon Go IOLs. At intermediate and near distance, the image obtained with the Precizon monofocal IOL show the blurriest and that with the Precizon Go IOL provides the clearest images among three IOLs. At both 15 and 7.5 CPD, the MTF values of the Eyhance IOL was the lowest among three IOLs at far distance. The MTF values of the Precizon Go IOL were the highest among three IOLs at intermediate and near distances.

The Precizon Go IOL provides excellent performance at far distance and better performance than the Eyhance IOL at intermediate and near distances.