Yep, detached / ripped retina. Know exactly what he means by spots too. If i close the "good" eye, there's a legit blur spot in the "bad" eye that will never really fully heal. However, the good eye basically is boss and basically covers for the bad one. Vision pretty spot on now, have contacts and glasses.
Was scary as f*** though man, eye was bloodshot for a few days, and I couldn't see s*** in school and then went to the eye doctor (didn't tell my parents how bad it was...) Doctor originally said I'd need surgery and 50/50 if i ever see out the eye again. Anyway, monitored for 2 months as they wanted to see improvement and the swelling etc to stop and it did, and then the retina reattached/healed and I improved basically every other week.
anyway, back on topic - i healed like Wolverine and I feel for Siem.