Thank you for your question. It is encouraging that you have been off of accutane for 2 years, however, it is best for the surgeon performing your procedure to answer your question regarding your recent dosage of accutane. Always consult with a board certified facial plastic surgeon.
Thanks for your query. Yes you can undergo the procedure. One week of accutane 20 mg will not dry the skin so much but proper decision can be made only after proper examination of the skin. You can consult a dermatologist. Hope it helps.
All The Best
There can be scarring problems after Accutane so best be safe and wait out the 6 months suggested period for dermabrasion. My Best, Dr Commons