How to choose optical glasses lenses？
When choosing optical glasses lenses, multiple factors need to be considered, including degree, refractive index, lens material, price, etc., to ensure the selection of the most suitable lens for oneself.
Degree: Choosing the appropriate degree is crucial and should be adjusted according to the optometry results to avoid excessively high or low degrees, in order to ensure a good visual experience.
Refractive Index: Refractive index affects the thickness of the lens. Low refractive index lenses can be chosen for low myopia, while high refractive index lenses are recommended for high myopia to achieve better visual quality and reduce lens thickness.
Lens materials: Common lens materials include resin, glass, and polycarbonate (PC). Resin lenses are lightweight and safe, making them the mainstream choice for modern eyeglass fitting; Although glass lenses have high clarity, they are bulky and fragile; Polycarbonate lenses have good impact resistance, but may be prone to deformation.
Price: You don’t have to pursue the most expensive product, just choose the price range that suits you, while ensuring that you purchase from reputable brands or institutions.
Other considerations:
Should we choose non spherical lenses to reduce aberrations and improve visual comfort.
Decide whether to add astigmatism correction as needed, especially for cases with high degrees of astigmatism.
Considering the coating technology of lenses, high-quality coating can improve comfort, wear resistance, and ease of cleaning.
In addition, proper maintenance and usage habits can also extend the lifespan of lenses. Avoid exposing glasses to high temperatures, do not use rough cloth to wipe the lenses, and regularly check if the screws of the glasses are loose. By considering these factors comprehensively, one can choose eyeglass lenses that are both suitable for oneself and cost-effective