GFAP and Abnormal retinal morphology: Although GFAP is widely employed owing to its prevalent expression in astrocytes and was used in this study based on previous reports [11,12], its expression is not exclusive to astrocytes; GFAP can be upregulated in early response to neural injury, oxidative stress, inflammation, and retinal diseases not only in astrocytes, but also in Müller glial cells and other reactive glial cells [18].