Davis Pham-Howard

The paper measures retinal resistivity using electrical resistance tomography in rat retinas, comparing results from commercial and machine learning-based methods.

This paper develops biomimetic scaffolds to mimic human subretinal debris in animal models, improving the accuracy of preclinical testing for subretinal prostheses.

The paper develops biocompatible coatings for 3D electrodes on retinal prostheses using electrodeposition and photolithography to protect gold surfaces while preserving functionality.

This study shows that gold coatings on subretinal implants cause retinal inflammation and neuronal loss, while platinum and titanium coatings reduce these effects, enabling better visual resolution implants.

This study shows that residual photoreceptors affect the response of a degenerate retina to electrical stimulation, with implications for improving subretinal prosthesis design.

This paper demonstrates label-free imaging of reversible rhodopsin dynamics in living eyes using optoretinography, revealing microsecond-scale mechanical responses to light stimuli.

The paper develops doped amorphous silicon resistors for photovoltaic retinal implants, enabling smaller pixel sizes and improved electric field contrast without reducing photoresponsivity.

This paper demonstrates a method to measure retinal temperature rise in vivo using phase-sensitive OCT, showing differences in thermal deformation between healthy and degenerate retinas.

This study upgrades a subretinal photovoltaic implant in rats, improving visual acuity from 100m to 28m pixels.

This study evaluates long-term biocompatibility and performance of 3D honeycomb-shaped subretinal implants in rats, showing improved stimulation thresholds compared to flat designs.