Abstract: A confocal scanning laser ophthalmoscope for providing retinal therapy of an eye comprises a first light source configured to emit a treatment beam at a first wavelength to a selected area of the retina, and a retinal functional tracking means. The retinal functional tracking means comprises a broadband second light source arranged to emit light within a spectrum to the selected area of the retina, and a detector configured to analyze reflected light from the retina at the selected area. The detector is adapted to determine a change in the spectrum of the reflected light, the change comprising a change in the amplitude of light at one or more specific wavelengths. The ophthalmoscope is configured to adapt a therapeutic dose emitted by the first light source in response to the determination of such a spectral change.