Review on 👓 Sightline P 306 Multifocus Progressive Power Acetate Reading Glasses - Premium Frame for Women (Black Tortoise) - 1.00 Magnification by Tony Pearson

These are progressive trifocals, glasses with three different focal lengths (ie three different dioptres) with no lines between the lens parts. The transition between the focal lengths is gradual. I've tried some prescription lenses like this one and didn't like them and some other brands of contacts weren't as good either, but these are great. One of their advantages is that the see-through area is wider than others I've tried. If it's too narrow, you can only see straight ahead clearly and can't focus both eyes at the same time. I mainly use the middle part of the lenses. It's big enough that they work like regular readers most of the time and I don't notice any difference. To use other diopters I have to nod or raise my head to change the angle; it doesn't happen by accident. That's good, although it means those parts of the lens might not be as comfortable to use depending on the direction you're looking. All three diopters work as intended and appear to be numbered accurately. The optical quality seems to be good. Come with a cloth drawstring pouch in different colors to store them inside. Sightline is an American company. The frames are made in China. *These frames are designed for medium to small heads that require a relaxed fit. They are marked 50-19-140, which means the lenses are 50mm in diameter, the parts that sit on your nose are 19mm apart and the temples are 140mm long. My nose tells me that they are actually slightly smaller over the nose. чем пара 18-х, которые у меня есть от Sightline, поэтому я думаю, что они действительно больше похожи на 17-е, может быть, даже на 16-е, так как они кажутся немного меньше, чем пара 17-х, которые I have. (These numbers are often printed on the inside of one of the temples if you want to compare them to current frames. This manufacturer also sells these lenses in other frames in different sizes.) The spring-loaded temples work well and hold the glasses firmly in place. The place is good, although not as crowded as some of the other Sightline offerings. Diopter order numbers refer to the underside of the lens. If you plan to use them primarily for reading something like a book, use the bottom of the lenses most of the time (because of the angle between you and the book). , you need to order the diopter number you usually use for it. For example, if you plan to use them primarily for reading from a computer monitor that is at eye level, you will need to order the "size" that has that number in the middle. I mainly use Reader for this. I usually use 1.00 for this, so I ordered 1.50 which has 1.00 in the middle. Here are three diopters for each "size" of the order, starting with the bottom of the lens, which is the order number: 1.00, . 75, .301.50, 1.00, .502.00, 1.50, .752.50, 2.00, 1.253.00, 2.50, 1.50 yes), most pharmacies, large grocery stores, Wal-Marts, etc. have reading glasses where you can try them on. You need to find the ones that work best for the distance you intend to use them at. (The higher the diopter, the closer the field of focus, so if you're reading up close, use a higher number than if you're reading farther.)