SETO 1.74 single vision Lens SHMC
|1.74 single vision optical lens|
|Model:||1.74 optical lens|
|Place of Origin:||Jiangsu, China|
|Power Range:||Sph: -3.00 ~-15.00
CYL: 0~ -4.00
1.How High-Index Lenses Differ From Regular Lenses?
As the index of refraction increases, the curvature needed to produce a specific correction decreases. The result is a flatter, more attractive, lower volume, thinner lens than was previously possible.
Higher index materials have given patients, especially those with large refractive errors, freedom to choose lens sizes and shapes, as well as frame styles, that were once unavailable to them.
When these high index lens materials are used in aspheric, atoric, or progressive designs and paired with premium lens treatments, the value to you, the patient, expands dramatically.
2.What Refractive Errors Can Single Vision Lenses Correct?
Single vision glasses can correct the most common refractive errors:
Myopia refers to nearsightedness. Objects that are far away can be difficult to see clearly. Single vision distance lenses can help.
Hyperopia refers to farsightedness. Objects that are close up can be difficult to see clearly. Single vision reading lenses can help.
Presbyopia refers to the loss of near vision due to age. Objects that are close up can be difficult to see clearly. Single vision reading lenses can help.
Astigmatism is a condition that makes vision blurry at all distances because of the cornea’s asymmetric curvature. Both single vision reading lenses and single vision distance lenses can help you achieve clear vision.
3. Coating Choice?
As 1.74 high index lens, super hydrophobic coating is the only coating choice for it.
Super hydrophobic coating also name crazil coating, can make the lenses waterproof, antistatic, anti slip and oil resistance.
Generally speaking , super hydrophobic coating can exist 6~12 months.