Dr Roos is a consultant ophthalmic plastic surgeon with a focus on facial aesthetics, eyelid surgery, periocular cancer, non-surgical innovations and watery eyes. He trained at Cambridge (double first) as well as Harvard & Moorfields Eye Hospital. He holds a higher doctorate from Cambridge and is a Fellow of the Royal College of Ophthalmologists and the European Board of Ophthalmology as well as the learned oculoplastics societies of the US, UK and Europe. He lectures internationally and has won numerous national and international prizes and awards for his clinical and academic work. He practices in Harley Street, the Lanserhof in Dover St, at OneWelbeck as well as in Cambridge and lectures as an external Professor at the Mario Negri Institute. He is listed in the 2004 TATLER guide for eyelid surgery with his co-founder at FaceRestoration Dr Rachna Murthy.