A method for non-invasive determination of a retinal (101, 102) tissue temperature inside an eye, wherein the method comprises steps of: - providing an electromagnetic radiation stimulation (106a, 107a) to interact with the retinal tissue, - measuring electrical responses (109, 114) of the retinal tissue to the electromagnetic radiation stimulation as a function of time, where the response is a temperature-dependent electrical response of the retinal tissue to the used electromagnetic radiation stimulation, and - determining a first and/or second parameter of the measured response, where ∘ the first parameter relates to kinetics of the measured electrical responses of the retinal tissue to the electromagnetic radiation stimulation, and ∘ the second parameter relates to a photoreceptor sensitivity of the measured electrical responses of the retinal tissue to the electromagnetic radiation stimulation, - determining the temperature of the retinal tissue based on the determined first and/or second parameter of the measured responses by: ∘ comparing at least the determined first parameter to a previously determined first reference parameter, where the dependency of said previously determined first reference parameter on the temperature is known, and/or ∘ comparing a ratio of said determined second parameter being the electrical response to a first wavelength of the stimulation to another second parameter being an electrical response to the second wavelength of the stimulation, where the dependency of said ratio of said second parameters on the temperature is known. - providing an electromagnetic radiation stimulation (106a, 107a) to interact with the retinal tissue, - measuring electrical responses (109, 114) of the retinal tissue to the electromagnetic radiation stimulation as a function of time, where the response is a temperature-dependent electrical response of the retinal tissue to the used electromagnetic radiation stimulation, and - determining a first and/or second parameter of the measured response, where ∘ the first parameter relates to kinetics of the measured electrical responses of the retinal tissue to the electromagnetic radiation stimulation, and ∘ the second parameter relates to a photoreceptor sensitivity of the measured electrical responses of the retinal tissue to the electromagnetic radiation stimulation, ∘ the first parameter relates to kinetics of the measured electrical responses of the retinal tissue to the electromagnetic radiation stimulation, and ∘ the second parameter relates to a photoreceptor sensitivity of the measured electrical responses of the retinal tissue to the electromagnetic radiation stimulation, - determining the temperature of the retinal tissue based on the determined first and/or second parameter of the measured responses by: ∘ comparing at least the determined first parameter to a previously determined first reference parameter, where the dependency of said previously determined first reference parameter on the temperature is known, and/or ∘ comparing a ratio of said determined second parameter being the electrical response to a first wavelength of the stimulation to another second parameter being an electrical response to the second wavelength of the stimulation, where the dependency of said ratio of said second parameters on the temperature is known. ∘ comparing at least the determined first parameter to a previously determined first reference parameter, where the dependency of said previously determined first reference parameter on the temperature is known, and/or ∘ comparing a ratio of said determined second parameter being the electrical response to a first wavelength of the stimulation to another second parameter being an electrical response to the second wavelength of the stimulation, where the dependency of said ratio of said second parameters on the temperature is known.