Adult glasses should not be treated carelessly! How to choose glasses?

Adult glasses should not be treated carelessly! How to choose glasses?

Nowadays, children's vision health issues are getting more and more attention. If children have vision problems, many parents will take their children to professional fitting institutions, where specialized optometrists or opticians will fit their children with glasses. However, they are careless about themselves, wearing a pair of glasses for several years and changing glasses hastily. Many adult myopic patients think that as long as they can see clearly, it is enough to wear glasses. In fact, a pair of suitable myopic glasses should not only be able to see clearly, but more importantly, they should also be healthy, comfortable, and long-lasting!

What should adults pay attention to when fitting glasses?

01 Lens color

People who have high and stable vision requirements for vision, color and distance, such as students, car drivers, surgeons, artists, etc., should choose colorless and transparent lenses. If car drivers wear lenses with darker colors, they will be insensitive to distance changes and have inaccurate distance judgment, which can easily cause accidents.

02 Lens shape

Once you have chosen your frame, you have chosen the shape of your lenses.

03 Lens transmittance

Optical lenses with multi-layer anti-reflective coatings, colorless optical lenses and aspherical ultra-thin optical lenses have better light transmittance.

04 Lens thickness

It is related to the size of the lens's refractive power, the lens's refractive index, the size and shape of the frame, the pupil distance and the amount of optical center shift, the axis of astigmatism, and the properties of the lens (concave and convex).

05 Weight of the lens

It is related to the lens material. Glass lenses are heavier than resin lenses. For the same lens material, lenses with higher specific gravity are heavier than lenses with lower specific gravity, and lenses with larger volume are heavier than lenses with smaller volume (it is related to the lens power and size).

06 Hardness of the lens

Glass lenses are harder and more wear-resistant than resin lenses.

07 Lens Strength

Resin lenses are stronger than glass lenses, more impact-resistant and less likely to break.

08 Special functions of lenses

Such as anti-ultraviolet, anti-electromagnetic radiation, anti-infrared, high temperature resistance, oil resistance, acid and alkali resistance, anti-dispersion, anti-deformation (ultra-thin aspherical lens), anti-glare and other functions. For example, lenses for electric and gas welding, lenses for computers, lenses for underwater use, and lenses for fishing are different.