Countercurrent: Conversations With Professor Roger Kneebone

Vis specialises in the diagnosis and treatment of glaucoma, an eye disease where pressure on the optic nerve leads to impaired sight. As a surgeon he performs operations of the utmost delicacy and precision; as a teacher he passes on his wisdom to less experienced surgeons; as a statistical geneticist he researches the scientific basis of eye disease. In this conversation we explore the interplay of these many perspectives across his career.