- Eyeglass Lenses

- Eyeglass Lenses

What are Eyeglass Lenses?

Eyeglass lenses correct refractive errors by bending (refracting) light as it passes through the lens. The size of the light bending capacity (lens power) required to provide good vision is indicated in the eyeglass prescription provided by your ophthalmologist.

Single Vision

For vision problems such as myopia, hyperopia and astigmatism, health professionals recommend the use of simple vision lenses.

This type of lens is also called monofocal, and its function is to correct a field of vision for a single distance: near or far.

In this context, the single vision lens (monofocal) differs from the multifocal lens that corrects different distance points in a single lens, namely: near, intermediate and distance vision.

Bi-Focal Lenses

Bifocal lenses have two powers (or two types of strength): one for seeing objects that are further away, and another for seeing objects up close.

To try to see objects clearly at this “in-between” distance, bifocal wearers can raise or lower their head, looking alternately through the top half and bottom half of their bifocals, to determine which part of the lens works best.

This type of lens has two different fields of vision: for near, in the lower part of the lens, and for distance, in the upper part. With a bifocal lens, there is no need to use two glasses to see different distances.

Progressive Lenses

Progressive lenses are also known as multifocal lenses. Also recommended for those with presbyopia, the famous tired eyesight.

This type of lens encompasses different focuses and distances.

In this sense, they work by correcting the focus of vision for distance, near and intermediate, in just one pair of glasses, eliminating the need for the use of two glasses (for near and far).

Hi-Index Lenses

Photochromic lenses are lenses that darken in the sun. This type of lens is very useful for those looking for practicality and who need to wear prescription lenses and don't want to alternate between sunglasses and prescription glasses.

These lenses have a treatment that is activated in the presence of UV rays emitted by the sun. Therefore, they only darken when exposed to sunlight. If you are indoors or without sunlight, for example, the lenses will become transparent (colorless).

However, anyone who intends to drive using photochromic lenses should be aware: the car's windshield blocks UV rays. Therefore, the lenses do not darken inside cars.

High Index are plastic lenses that bend light more efficiently.

This means that less material can be used in high-index lenses to correct the same degree of refractive error, which makes high-index plastic lenses thinner and lighter than conventional glass or plastic lenses.

Photochromic Lenses

Bluselect lens

A new ophthalmic lens material that helps protect eyes from not only ultraviolet (100-400nm) light rays but also 400nm-420nm High Energy Visible (HEV) light. The human eye can be damaged by a lifetime of exposure to sunlight, in particular UV light and the development of cataracts.

Recent studies have shown, however, that shorter wavelength light from 400nm to 420nm also has the potential to damage the retina, which is the most vulnerable tissue of the eye. This may be a contributing factor in the development of Age-related Macular Degeneration (AMD), and may cause visual fatigue and sleep pattern disruption

Sources of blue light include the sun, digital screens (TVs, computers, laptops, smart phones and tablets), electronic devices, and fluorescent and LED lighting.

Neurolens

Neurolens are revolutionary lenses that protect against pain caused by ocular misalignment.

The demand on our eyes is greater than ever and up to 80% of adults experience the painful symptoms of eye misalignment, such as Headaches, Eye Strain, Neck & Shoulder pain, Dizziness, Dry Eye and Light Sensitivity.

Eyeglasses Care

  • Always keep your lenses clean

  • Store in a suitable place

  • Do not leave your prescription glasses facing down

  • Make adjustments in specialized locations

  • Do not wipe your glasses on your shirt

  • No alcohol-based products

  • Invest in a good anti-reflective product

If you take some very simple care of your prescription glasses, you can prevent your lenses from getting scratched, stained and even prevent your glasses from getting crooked. Therefore, after we buy our prescription glasses, some precautions are recommended.