The invention relates to an injectable photoelectric hydrogel for repairing
retina photosensitive function damage and a preparation method and application thereof, and the injectable photoelectric hydrogel is characterized in that photoelectric active spirulina and a
conductive polymer poly (3, 4-ethylenedioxythiophene) (PEDOT) hydrogel are physically crosslinked to construct an injectable material with a photoelectric response characteristic, and functional repair of
retina damaged photosensitive cells is realized in situ. Sp is used as a bioactive component, the material is endowed with photoelectric
signal conversion capacity, the local anti-
oxidative stress function can be achieved, PEDOT-based hydrogel physically coats Sp to form a three-dimensional support,
algae cell activity is guaranteed, and excellent charge and
ion conduction performance is achieved. The hydrogel can be injected into the
retina to construct a bionic electrochemical
signal transmission interface,
signal transduction of damaged photoreceptor cells is reconstructed, and in-situ repair of a retina signal channel and partial
recovery of a
visual function are achieved. The technology provides a new strategy for
curative treatment of blinding eye diseases such as
retinopathy, and has the advantages of minimally invasive intervention, excellent
biocompatibility, customizable treatment area and the like.