TRPV4 and eye disorder: [27] Additionally, TRPV4 channels have been linked to the maintenance of corneal homeostasis [4] and, in the retina, TRPV4 influences a variety of cell types, including ganglion cell soma-dendrite, microglia, and Müller cells, suggesting roles in common eye diseases like glaucoma, which is common in the age group of over 40 years old [53,54].