Yes, the catheter used in interventional surgery can only reach the proximal end of the ophthalmic artery for drug administration or stent placement. If there's a blockage in these areas, it's needless to say that placing a catheter and stent here is possible, and the effect of clot retrieval and thrombolytic therapy is relatively good.
The catheter and stent are limited by the diameter of the blood vessel and cannot be delivered to the terminal blood vessels supplying the retina. The only remaining question is whether thrombolytic medication can accurately reach the blockage location of the retinal artery through the ophthalmic artery to dissolve it; perhaps it can. But if thrombolytic medication is feasible, why bother with interventional surgery? It can be administered intravenously throughout the body in the same way.
