By Tiffany Gill Everyone is aware that there is an open market for used ophthalmic equipment. These experts deal their conventional pieces to be able to improve their instruments into the newer ones. This would mean wider areas for discounts available for sale. The equipment will depend on your needs. You may want to consider investing in exploited materials rather than paying the full retail on newer device. There are advantages and disadvantages associated with this decision buying process. Be sure that you do your research before you take...