After passing the College of Optometrists pre-qualifying examinations, Nik worked as an optometrist in independent and multiple practices for 3 years before studying full-time at Bristol Eye Hospital for an MSc in Clinical Ophthalmology and Optometry.
Thereafter, he completed a PhD at Cardiff University investigating stereoscopic techniques in the diagnosis of glaucoma.
Nik was an Accreditation and Evaluation Manager for the Welsh Eye Care Initiative (2003 to 2008). Together with Barbara Ryan, he was responsible for providing all the training, accreditation and re-accreditation for optometrists in Wales. Since 2008 he has been Clinical Lead for the Eye Health Examinations Wales service and became a Director for WOPEC in 2012. He teaches on 3 postgraduate taught modules, is also is a member of the General Optical Registration and Education Committees and practices as a Locum optometrist.