1.67 1.74 -8 To +8 Men Women Double Beam Minus Diopter Eyewear Anti-Blue Ray Myopia Glasses Retro Near Sight Eyeglasses Trend Prescription Glasses

High-Concerned Chemical : None Element Type : Basic Classic Applicable Scenarios : Casual Product Type : Fashion Reading Glasses Style Type : Square Lens Width : 5.4Cm Lens Height : 4.5Cm Frame Material : Plastic Lenses Material : MR-174 Lenses Color : Clear Gender : Women,Men,Unisex Lenses Optical Attribute : Anti-Reflective Product Code: 101yj-apage Origin : Mainland China Certification : None Item Type : Eyewear Eyewear Type : Reading Glasses S1 : Myopia Glasses S2 : Unisex Myopia S3 : Short-Sight Glasses S4 : Anti-Blue Light Eyewear S5 : Women Vintage Eyeglasses S6 : Ladies Square Eyewear S7 : Computer Eyewear S8 : Prescription Eyeglasses Diopter : 0-1.0-1.5-2.0-2.5-3.0-3.5-4.0

When choosing a refractive index, you can consider the following: 1. Degree selection: For low myopia (0-300 degrees), choose lenses with a refractive index of 1.56; for moderate myopia (300-600 degrees), consider a refractive index of 1.67; for high myopia (above 600 degrees), a refractive index of 1.74 is recommended. 2. Lens thickness: The higher the refractive index, the thinner the lens, which is suitable for users who want a thinner lens edge. 3. Imaging quality: The Abbe number of high-refractive index lenses is usually low, which may increase dispersion and affect imaging quality. Therefore, clarity and thinness need to be weighed when choosing. 4. Usage scenarios: If you do not wear glasses frequently, it may be more appropriate to choose lenses with a lower refractive index.

Please Confirm Before Purchase , Don'T Buy Mistakes!! "+" Means: Magnifying Glasses/Hyperopia/Prebyopia/Farsightedness , Most Use For 40-80 Years Old "-" Means: Myopia/Short-Short/Vision Miuns , Most Use For 0-40 Years Old "0" Means: The glasses have no prescription and are mostly used for decoration It is well known that when wearing glasses for the first time, the eyes need to readjust to the new optical correction, which may cause temporary visual discomfort, such as dizziness or headaches. Over time, the body adapts to the new vision state, and the discomfort will gradually lessen or disappear.

For Example : If You Need Presbyopia +2.5 , Please Purchase +250 If You Need Myopia -1.75 , Please Buy -175