What is sp2 lens?

A fixed tint glass with light pink colour for aesthetic effect and to reduce sun glare. Diameter. : 60 mm. Thickness.

How do I know the power of my glasses?

Lens power is measured in diopters. The higher the number, the stronger the prescription. For example, “-5.00” written under sphere means that you are very nearsighted and need a five diopter correction. You may also see diopters expressed in decimals, such as 1.25 or 4.75.

What are the two types of optic lenses?

Lenses can be classified into two broad types: positive (or converging) and negative (or diverging) lenses. Positive lenses cause a collimated beam of light — assuming the beam travels parallel to the lens axis and passes through the lens — to converge or focus on a spot behind the lens.

What are the types of spectacle lenses?

Types of Optical Lenses

• Single vision lenses. Single vision lenses have the same prescription power across the entire lens.
• Bifocal lenses. Bifocals are made up of two lenses to correct both near and far-sighted vision.
• Trifocal Lenses.
• Progressive lenses.
• Toric Lenses.
• Prism Lenses.

What is spectacle lens?

The simplest form of spectacle or contact lens is the single vision lens, be it concave or convex. This means that the lens is made to a single prescription to correct a particular vision deficiency, be it short or long-sightedness. Theses lenses are used to correct long-sightedness (hypermetropia).

How do I know my glasses prescription?

If you have existing eyeglasses and you’re confident the prescription is up-to-date, you can try a service such as the GlassesUSA Prescription Scanner app to get your prescription details….Other options for figuring out your eyeglass prescription

1. Liingo RX Reader.
2. GlassesOn app.
3. Lens Scanner App.

Which lenses are best for cataract surgery?

What are the different types of lenses for cataract surgery?

• Monofocal lenses are designed to provide the best possible vision at one distance.
• Multifocal IOLs have multiple corrective zones built into the lens (much like bifocal or trifocal eyeglasses).

What is the best eye lenses brand?

Top Selling Eye Lenses Brands

• Johnson and Johnson Contact Lenses.
• Ciba Vision Contact Lenses.
• Bausch & Lomb Contact Lenses.
• Cooper Vision Contact Lenses.
• Aryan Contact Lenses.
• Acme Yearly Toric Contact Lenses.
• Celebrations Contact Lenses.
• Silk Lens Contact Lenses.