For the purposes of this discussion, we are going to direct you to a column that is labeled “add.” Add stands for addition. The basic idea is that this is the power that needs to be added in your prescription in order to give you a clear vision for certain activities. Ultimately, a 1.75 add can be negative or positive. Let’s start with -1.75. A -1.75 eyewear prescription essentially signifies that you need some additional power to see some objects that are further away. Specifically, we are talking about things like watching television or objects or people at a distance when you are driving. Compared to a -1.25 eyewear prescription, for instance, a -1.75 eyewear prescription is going to be more powerful. Discover more about 1.75 here. If you are looking for an online retailer to fill your -1.75 or 1.75 prescription, we encourage you to check out our store. At Rx-Safety, we are proud to sell high-quality eyeglasses for any type of prescription. Click here to view our collection or to reach out with any inquiries.