14/04/2024
Well as the saying goes, you never stop learning! The challenges and perks of having a horse with an acquired traumatic brain injury are never ending. This weekend we had a huge learning curve and potential breakthrough in Lewie's training. He competed at a two-day barrel racing competition, originally scheduled on a large outdoor campdraft arena but over 100mml of rain meant it was moved to the local indoor. We showed up for our run as normal, warmed up on the outdoor arena beautifully and off we went. We had a beyond appalling run, spooky, slamming the breaks, not turning and just not wanting to run, totally out of character. I tried to brush it off, as he hadn't run in an indoor in over 12 months and was very green when he did, however I felt something was really off. We turned up again on day two with far lower expectations, they had a drum out on the outdoor arena, so we had a good warm up and he was on fire, keen and doing everything right. We went to the indoor for our run and was helped in by a lovely lady with her horse as he was so freaked out heading in (again totally out of character). We had another poor run, (slightly better than the previous day), taking down two drums, not wanting to run and still slamming the breaks on every drum.
Deciding it was time to sit down and think on why he really couldn't handle the indoor I decided to re-test his vision - I tested it quite some time ago and it wasn't 100%. However, this time around after light sensitivity and movement testing, I found him to be completely non-reactive to light or movement in the right eye at all. He was also incredibly over reactive in the left eye - almost like he was freaked out by the light (likely a compensation for the lack of vision in the right eye, accompanied by nerve disruption).
This all makes a lot more sense with things he does in his everyday life all adding up to an inability to see on his right side. This also explains an unwillingness to go into the dark indoor arena, he is unable to see well in the daylight let alone in the dark and may also have a delayed adjustment from light to dark environments.
I have attached an interesting photo of the nerves in a horse's head/neck and where they run. His injury went directly through the top of his poll and down towards his brain, also travelling extensively under the skin down the face and neck. He also suffered a severe concussion that would have put pressure on those nerves underneath where the brain sits for an extended period of time (he spent 6 weeks with an extensively swollen head). He is potentially close to fully blind in his right eye. He does have a lot more going on than just vision impairment, but this was just a very interesting find and a big learning curve we thought we could share.
While this does not adversely affect him it does mean I can be a little more helpful in his training to accommodate this and also, no more indoors! ๐ฅฐ๐
It is very difficult to find a lot of research on horses with these types of injuries as a lot don't survive or aren't persevered with.