Sad, but interesting. The article mentions retinal hemorrhages, but that appears to be speculative, as it does not appear anyone knows what condition Kinloch actually had that caused his loss of sight. The reason it's interesting is that some climbers (notably Beck Weathers) suffered similar symptoms in 1996 on Everest, that were later connected to the fact that they had had corrective eye surgery in the past. Article does not state whether Kinloch had, or had not had, corrective eye surgery. It would be interesting to know one way or the other...