Tommy Tiernan Show recap: Peter Ryan on overcoming challenges after 90% vision loss

The comedian also spoke to John Cooper Clarke and Louize Carroll

Peter Ryan on the Tommy Tiernan Show

Paralympian and ultra-endurance runner Peter Ryan spoke to Tommy Tiernan about losing 90% of his sight at age 20 and the challenges that posed for him.

Ryan has Leber hereditary optic neuropathy, a degenerative condition that affects central vision. He described his range of vision as peripheral only, telling Tiernan he could not see him despite maintaining eye contact during their conversation.