Once an order for glasses has been placed with GlassesShop, making changes to the prescription can be challenging. Typically, companies like GlassesShop have established policies regarding modifications to orders, which may depend on several factors such as the processing stage of the order and the specific prescription details. If the glasses have not yet been manufactured or shipped, it may be possible to update the prescription by contacting their customer service. On the other hand, if the order is already in production or has been dispatched, making changes could be difficult. It is advisable to check the current policies on the website for precise instructions and information on how to proceed. If a prescription change is necessary, timely action is recommended to ensure the best outcome for your eyewear needs.