UCanSee

Optical Hand Edger 35WV Single Wheel

Our face shape plays a significant role in determining which frames will look best on you. Here are some general guidelines:

Round Face: Square or rectangular frames add contrast and structure.

Oval Face: Most frame shapes work well, but wider frames complement balance.

Square Face: Round or oval frames soften angular features.

Heart-Shaped Face: Bottom-heavy frames or light-colored frames balance the width of the forehead.

Digital PD Meter Pupilometer Interpupillary Distance Tester

Manifestations of Improper Fitting or Use of Eyeglasses：
1. Overcorrected Myopia: Refers to excessive accommodative effort for both near and far vision, leading to severe eye strain.
2. Undercorrected Myopia: Results in suboptimal visual acuity, with symptoms similar to regular myopia.
3. Overcorrected Hyperopia: Often caused by inaccurate refraction, incorrect prescription principles, or specific medical purposes.
4. Undercorrected Hyperopia: Beyond retaining physiological hyperopia, excessive undercorrection keeps the eyes in a hyperopic state, with symptoms similar to regular hyperopia.
5. Inaccurate Astigmatism Degree or Axis: Incorrect astigmatism degree or axis presents symptoms consistent with standard astigmatism.
6. Binocular Balance Deviation: Symptoms resemble those of mild anisometropia.
7. Incorrect Addition for Presbyopia: Overcorrection requires the target to be held closer for clarity, while undercorrection manifests as symptoms of mild presbyopia.

Understanding the Symptoms of Refractive Errors
https://www.ucansee.us/blogs/learn-a-bit/understanding-the-symptoms-of-refractive-errors