The glass catalog files EYE.AGF and EYE.BGF provided here must be copied to the ZEMAX glass catalog folder to use these eye models. The default folder is c:\Program Files\ ZEMAX\ Glasscat.

The glass catalog has been constructed from published measurements of the refractive indices of the optical media of real eyes. This has generally been available for a limited number of wavelengths, often F, D and C. For this reason the Conrady formula has been used, with the consequence that the wavelength range is limited to the visible spectrum, and the Nd values are not rounded.

If the wavelength range needs to be extended into the UV or IR, it is useful to note that the ZEMAX stock glass catalog MISC contains data for seawater using the Schott formula for wavelengths from 0.334 to 2.325 microns. Since both the aqueous and vitreous humors of the eye have compositions similar to saline, it might be reasonable to assume that while the refractive indices are different, the dispersions can be inferred from that of seawater.