Your link is about gene therapy in the eyes of mice, and is specifically a method designed as an alternative to transplant:
> “This new approach, which successfully reverses multiple causes of vision loss in mice without the need for a retinal transplant, represents a new treatment modality in regenerative medicine.”
And that's just retinal transplant, much less whole-eye transplant.
The link provided is also about about a method to produce optic nerve regeneration, regardless of whether there has been a transplant or not. Unless you have a reason to believe that it would not work in the case of a transplant.
> Mechanical: Together, the cornea and lens refract light into a small image and shine it on the retina. The retina transduces this image into electrical pulses using rods and cones. The optic nerve then carries these pulses through the optic canal. Upon reaching the optic chiasm the nerve fibers decussate (left becomes right). The fibers then branch and terminate in three places. [1][2][3][4][5][6][7]
>Neural: Most of the optic nerve fibers end in the lateral geniculate nucleus (LGN).
> “This new approach, which successfully reverses multiple causes of vision loss in mice without the need for a retinal transplant, represents a new treatment modality in regenerative medicine.”
And that's just retinal transplant, much less whole-eye transplant.