4S Video – Iris bumps, lumps, rifts and gaps – Dr John Rawstron by Sam | Sep 10, 2022 | 4S Videos In our latest 4S Seminar Dr John Rawstron presents his insight into iris bumps, lumps, rips and gaps, taking optometrists through what to look for and what treatment and management options are available. ← 4S Video - Beautiful retina - Dr Logan Robinson Welcome to the team Dr Elizabeth Conner →