Method for Determining a Value Quantifying the Effect of an Optical Filter on a Parameter Linked to an Eye

A method for determining a value quantifying an effect of an optical filter on a parameter linked to an eye, the optical filter blocking at least partially the transmission of light over a predetermined wavelength range, comprising the following steps:

• a) providing at least one spectral feature of the optical filter related to the transmittance of the optical filter at at least one wavelength in said predetermined wavelength range;
• and
• b) calculating the value quantifying the effect of the optical filter on said parameter as a function of said at least one spectral feature of the optical filter provided in step a).

A device for determining a value quantifying an effect of an optical filter on a parameter linked to an eye, the optical filter blocking at least partially the transmission of light over a predetermined wavelength range, comprising:

• a device for providing at least one spectral feature of the optical filter related to the transmittance of the optical filter at at least one wavelength in said predetermined wavelength range;
• and
• a calculation unit programmed to determine the value quantifying the effect of the optical filter on said parameter by calculating it as a function of said at least one spectral feature of the optical filter provided in step a).