Ramkumar Sabesan

This paper introduces a method to measure retinal biomechanics in vivo using light-evoked intrinsic actuation and optical coherence tomography, revealing deformation patterns in retinal compartments and detecting functional changes in retinitis pigmentosa.

This study uses optoretinography in R9AP-bradyopsia patients to show that G-protein signaling is essential for the human cone elongation response.

This study uses optical imaging to show rapid rod photoreceptor contraction after photoisomerization, linking it to the early receptor potential and demonstrating a voltage-dependent membrane tension model.

This study examines how local variations in the L/M cone ratio affect the detection and color naming of small light spots, finding that chromatic sensitivity improves when the L/M ratio approaches unity.

This study compares optoretinography (ORG) and retinal densitometry for cone spectral classification, finding ORG offers higher sensitivity and reliability.

This paper introduces optoretinogram, a non-invasive method to image light-induced shape changes in human cone photoreceptors in vivo, revealing a biphasic response to light.

The paper investigates how the activity of surrounding S-cones influences the color sensations from individual M-cones, revealing context-dependent hue perception.