Understanding a Negative 12.5 Contact Prescription: Converting to Glasses Explained
A negative 12.5 contact prescription indicates severe nearsightedness (myopia). To convert it to a glasses prescription, remember the distance between the eye and glasses (about 12mm). This distance affects sphere (SPH), cylinder (CYL), and axis (AX) values. Proper adjustments ensure effective vision correction with glasses. When converting this contact prescription to glasses, several factors come … Read more