David Bowie's dog appears to have same eyes as late singer

But Bowie's eyes were not actually different colours

The "Space Oddity" singer had Aniscoria, a condition where one pupil is permanently dilated, after a friend punched him (Rex Features)

Fans mourning the death of David Bowie have noticed a striking similarity between the late glam rock singer and his pet dog: they both appear to have different coloured eyes.

Bowie passed away aged 69 after an 18-month cancer illness last month. This week, his widow the supermodel Iman was spotted by various media outlets, for the first time since news of his death, walking their pet dog Max in New York City.

Max, fans have noted, seems to have two different coloured eyes as seen in a post-walk picture shared by Iman on her Instagram page in October last year.

However the common belief that Bowie had different coloured eyes isn’t entirely accurate. In fact the "Changes" singer’s mismatched eyes were as a result of anisocoria - a condition where the pupils are different sizes as Bowie’s left pupil was actually permanently dilated.

The illusion of different coloured eyes is created because the dilated pupil doesn’t respond to light as well as the right pupil.

The different sized pupils were as a result of a childhood fight where his friend punched him and scratched the eyeball, leaving the muscles that contract the iris paralysed.

The friend George Underwood was reportedly thanked by Bowie later on for the “kind of mystique” his iconic eyes gave him.

Bowie’s most recent album Blackstar, which was released just days before his death, has since gone on to top UK and US album charts. It was announced this week that Lady Gaga, who has long credited the singer as an inspiration, will perform a tribute set in honour of him at the Grammy awards taking place on 15 February.