At McGill, he was a recipient of the Holmes Gold Medal,[2] awarded to the graduate with the highest aggregate academic standing upon completion of medical school.
Following residency, he completed his training with a post-doctoral fellowship in corneal transplantation surgery and laser vision correction of the cornea at the Université de Montréal.
Cohen was a clinical assessor for Bausch and Lomb for the zero compression Hansatome microkeratome, specifically designed to allow for safer and thinner corneal flaps for LASIK surgery.
As a method of treating the underlying disease and reversing the damage that has previously occurred, he began performing corneal collagen cross linking combined with topography guided excimer laser ablations in 2009.
Based on the results of these treatments, he developed the Montreal Protocol, a standardized method to treat keratoconus and post-op ectasia, which is now used in over 15 Canadian cities.
In 2014, LASIK MD earned Platinum Club status in Canada's Best Managed Companies competition sponsored by Deloitte, CIBC, the National Post and Queen's School of Business.