Why have the whites of this man’s eyes turned blue?

It's not eyeball tattooing or osteogenesis imperfecta

Despite appearances, this elderly man hasn’t been swept up in the recent eyeball-tattooing trend.


Actually, the whites of his eyes gradually turned blue over the course of a year — but why?

The 70-year-old presented to a clinic in the US, where ophthalmologists noted discolouration of the sclerae, as well as his ears, but found no other issues with his eyes.

However, the man —previously diagnosed with inflammatory arthritis — had been taking minocycline 100mg daily for more than 15