Hi Jing, 

Thanks for your question here on the community forums.

I have taken a look at the NSC eye model in the knowledgebase article, and I think it will be possible to make such resolution tests using this model, but you will need to modify the model for that. 

The model eye is currently focused at infinity, so I think that in this state the model might be better suited for angular resolution testing instead of spatial resolution testing.

In order to test spatial resolution, you can try to modify the model to focus at a certain distance, and then use light sources at a finite distance away from the eye. May I ask what would be the use case for this simulation? Will the eye be focused at the sources in the real measurement? If so, then probably you want to replicate that scenario in the model too.

You may find further help about how to create eye models which focus at near or intermediate distances in this article: How to model the human eye in OpticStudio – Knowledgebase (zemax.com)

Besides that, the pixel size of the current NSC model may be considerably larger than the image size at the retina, so the Detector Viewer light distribution might show the pixel size of the detector rather than the image size. If point imaging is of interest the pixel size will need to be reduced. You might also want to reduce the detector size to focus only on the area of interest, and possibly finetune the wavelength range and pupil size depending on the application.

I hope this helps, but if you have further questions, please ask.

Best,
Csilla

Hi Csilla Timar-Fulep,

Thank you very much for your answer! 

I want to use the model to test spatial resolution in non-sequential mode. And the eye will be focused at the sources in real measurement. It is really helpful to know that currently the eye model is focused at infinity instead of a finite distance. I will try to adjust the Lens in the eye model to change the focus. 

Best Regards,

Niu Jing