
The main testable health issues for border collies are HD, deafness, CEA, PRA, Glaucoma, CL and TNS. Are the parents of your pup health tested? DNA tests are available for TNS, CL (very rare fortunately in UK) and TNS (rare but some pups have suffered and died from this, one very recently). Was your pup health tested at 8 weeks for CEA and other eye issues by a specialist if parents NOT CEA tested? Was he/she tested for deafness? (quite a few breeders test for this). If your pup comes from CEA untested parents (no excuses these days!) then it's now too late for a visible eye test as CEA is only seen in young pups before the eye develops - you'd have to DNA eye test. This is done either in America (Optigen) or Australia (Dr Wilton at Sydney University). For Optigen there are 'clinics' to get a discount, check their website. TNS is only done by Dr Wilton and both do CL. If you join a site called Anadune then you can usually (if your pup is KC/ISDS registered) check the possibilities of illness on this site and is very interesting. Eye tests for adults (visual) are advised from a year and there's a general eye test which includes PRA (although this doesn't usually show until dog is older than a year) and also an additional eye test for propensity to narrow angled glaucoma.
There are people working on a test for epilepsy which is sadly too common in border collies - it's complex though (like HD) so unlikely to be done quickly, unfortunately
Unless you are wanting to breed there's no point in testing for TNS as you'd know by now if your pup had it. Probably no point in testing for CEA as if your pup did have it it's unlikely to affect him/her as it's non progressive. CL is thankfully very rare. Probably better to check Anadune which isn't foolproof but would give you an idea. If you're not wanting to breed again why hip score? It would give you a good idea of hips undoubtedly and would help your breeder considerably it's true. I would always recommend it be done, but few want the expense.
Good luck with your pup.