Welcome to HCM. And don't worry. As long as your vision is alright and having regular follow up with your doctor I think you shouldn't fear.
Sore eyes are commonly due to dry eye
disease,for which lubricant eye drops are the best and safe for prolonged use too. And if your obvious redness
is due to secondary inflammation I don't think your ophthalmologist will miss it and will start on anti inflammatory drugs as needed during the incident.
Until then, use a good preservative free lubricant, to keep your eyes moist and fresh. Nothing harm in using a lubricant for long term use.
Yes, in cases of Primary Biliary Cirrhosis
,dry eye symptom does exist. So if you are doubtful get yourself examined thoroughly for associated systemic illness .
Hope this helps . Take care .