Sight for sore eyes

Tibetans live in one of the highest inhabited regions in the world at an average 4,500m - and as altitude increases so does exposure to the ultra-violet radiation that damages eyesight.

You need to be an HSJ subscriber to read more

HSJ

Subscribe to read the full article

With an HSJ subscription you’ll get access to:

  • Expert Briefing newsletters, covering nine topics and regions
  • Weekly Catch Up – a summary of the week’s most important stories
  • Unlimited access to hsj.co.uk
  • The HSJ app

Enquire about multi-user access