Useful. Do you study optometry? I also graduated from this major. However, if it is a school major, it costs 300 yuan to take the exam with a diploma. If you are not a school major, you have to get a company certificate to prove that you have been engaged in the glasses industry for seven years, otherwise you can't take the exam. Now I don't think this industry is particularly popular. I believe this industry will be very popular in the near future. You'd better take off your intermediate optometry certificate early, which is very useful for your future. I think so, too. There are also advanced and technician certificates. Let's go