The lenses you choose will often determine how happy you are with your new glasses. The possibilities are endless, so how do you know if you’re making the right choice?
Hopefully this brief guide will provide you with the information you need to maximise your quality of vision. After all, they do say seeing is believing!
Your lenses will influence four factors; appearance, comfort, functionality, and vision. We’ll break this down for you below.
Different materials will change multiple elements of your finished lenses.
Most modern lenses are made from a variation of plastic materials. They offer a light weight upgrade from the old glass variety with greatly improved safety.
CR39 Standard Plastic – Ideal for prescriptions up to +/- 2.75D
Excellent optics – Low cost
Downside: Thickness – Only blocks around 60% of UV light.
1.53 Trivex – Recommended for rimless glazing or sports wear.
Superior impact resistance – Blocks 100% UV – Lightest lens material available
1.61 Plastic – Recommended for prescriptions from +/- 2.75D to +/- 3.75D
Thin and light – Blocks 100% UV – Less costly than 1.67AS or 1.74AS lenses.
Downside: Not as thin or flat as an aspheric lens.
1.67 Aspheric – Up to 30% Thinner – Recommended for prescriptions from +/- 3.75 and above.
Very thin and light – Blocks 100% UV – Aspheric design reduces the magnifying effect of the lens, making the eyes appear more natural to others. Also increases the wearers peripheral clarity compared to spherical lenses.
1.74 – 1.76 Aspheric – Up to 40% Thinner – Perfect for +/- 4.25D and above.
Thinnest possible lens option, giving you the thinnest and most attractive lenses available. Blocks 100% UV – Aspheric design reduces the magnifying effect of the lenses, making the eyes appear more natural to others. Also increases the wearers peripheral clarity compared to spherical lenses.
Downside: Most expensive option.
Lens Coatings and Tints
Absolutely essential on any lens. Not only do they improve the over all look of the spectacles, they also enhance vision.
The anti-reflective properties eliminate ugly reflections on surface of the lens which hide the wearers eyes, making them almost invisible so you can make better eye contact with others.
Lens reflections also reduce contrast and clarity, especially at night, so removing them will aid in improving and enhancing your vision. Leading to crisp, clearer vision in all lighting situations.
Similar to an anti-glare lens but with the added benefit of filtering harmful blue light emitted by artificial lighting such as computer screens, tablet devices and mobile phones.
Blue light has been found to cause eye strain and fatigu