Panel moderator Chris Hardwick took a couple of guesses at what might be behind Morgan's eye-sore, suggesting that the character could now exist somewhere between a human and a walker, or that he "touched a meteorite" and now has alien mutant powers. While the "alien" reference might seem like a joke, TWD comics creator Robert Kirkman did reveal on Twitter that the zombie-virus originated from a "space spore," so there is some canonical precedence for this possibility.
Meanwhile, fans have also come up with a handful of their own guesses — from the more funny reasons, like a broken blood vessel from stress, to the more narratively involved, such as radiation exposure. Viewers on Reddit have been discussing the possibilities for a while following the release of the full season 6 trailer at the virtual San Diego Comic-Con in July 2020, as well as the release of a second teaser in September.
Both clips' contents have had some fans — like Redditor u/TheGTAAnimals – suggesting that Morgan's eyes could be pointing to him being "the cure," since he's able to move amongst walkers without getting attacked. Others have pointed to the critically acclaimed Waking Dead season 3 episode "Clear" as a potential connection to his Fear season 6 red-eyed predicament; on that episode, Morgan declares, "Everything I see is red!"
