IR Photorefraction and IR Photokeratometry – Measuring Refractive State and Corneal Curvature in Animals and Humans
Prof. Frank Schaeffel discusses the optical principles, image processing algorithms, calibration, and potential pitfalls within IR photorefraction and IR photokeratometry.
Echolocation with Light: A New Form of Active Sensing in Fish?
Prof. Nico K. Michiels discusses how weak light reflections, during active photolocation, in the pupils of predator and prey species can be strong enough to be perceptible by the initial light sender.
