显示标签为“Cheap Prescription Glasses Online”的博文。显示所有博文
显示标签为“Cheap Prescription Glasses Online”的博文。显示所有博文

2022年5月8日星期日

About the material of the sunglasses

 PC tablet (carbonate polyester lenses) : tough, not easy to break, impact resistance, sports EyeGlasses Store specially specified lens material, the price is higher than acrylic lenses; Glasses Online: slightly higher than resin clarity, but the first heavy, second easily broken (even tempered Cheap Prescription Glasses Online); Ac sheet (acrylic lens) : with excellent strong and tough characteristics, light weight, high perspective rate, good anti-fog. Nylon sheet: made of nylon, properties Buy Prescription Glasses Online: very high elasticity, excellent optical quality, strong impact resistance, usually used as protective articles.

2022年4月27日星期三

Degree and before same why glasses a bit dizzy

 First of all Cheap Prescription Glasses Online, not only the degree but also the pupil distance may change at different times. Pupillary distance is the distance between the pupils of both eyes Buy Prescription Glasses Online. When a normal person gazes at the same object with both eyes, the object is imaged in the retina of both eyes and overlapped in the visual center of the brain to become a complete, three-dimensional single object. This function is called binocular monopnea. As people grow older, the length Online Eye Glasses Prescription of each diameter of their head will change, and the pupil distance will also change. If the pupil distance is not correct, the same Eyeglass Lenses Online degree as before is also uncomfortable.