“…Recently, deep Convolutional Neural Networks (CNNs) have been widely used in natural image restoration and enhancement [16]- [18], e.g., super resolution [19]- [25], deraining [26], deblurring [27]- [31], enlighten [32], [33], etc. Inspired by the success of natural image restoration, CNNs have also been applied to fundus image restoration [1], [2], [22], [23], [34]- [39]. Although impressive results have been achieved, CNN-based methods show limitations in capturing long-range dependencies.…”