How do prescription lenses work?
To put it simply, prescription lenses correct ocular issues by reorienting light to land on the retina, allowing the wearer’s eye to focus clearly.
Are eyewear prescriptions standardized?
Yes! The information necessary for an optician to understand your optical needs is the same everywhere – therefore, so are the contents of an eyeglass prescription. Speaking of which, head over to our guide to reading your prescription to learn more!
What is a lens index?
The higher the index, the thinner the lens. With a higher index, the lens is thinner around the rim or in the centre, which improves the appearance of the glasses, especially for high myopia or hyperopia. Based on your prescription, we will recommend the best lens index to ensure your lens thickness will fit right in with your frame.
How does lens axis impact my prescription?
Astigmatism occurs when the eye is not curved evenly, which causes blurriness. In order to correct it, the difference in power between the two mismatched curves must be assessed and countered by what is called cylindrical power (identified as CYL on your prescription). The axis is the angle at which this cylindrical power must be positioned in your lens to correct astigmatism.
Can old lenses be fitted into a new pair of glasses?
While it is possible to install old lenses into new frames (as long as they’re the exact same model), it’s not a service we’re currently offering. However, we do provide an in-store lens replacement service – which means you can upgrade your favourite frames to accommodate a new prescription!
Should eyeglass prescription be considered when choosing frames?
There are a few aspects to consider when picking eyeglasses:
- Lens index: Not only does lens index play a part in the price you’ll pay, but frame material can also dictate your choice of lens index. For example, thin titanium glasses might require thinner, more expensive lenses.
- Frame material: Unless you plan on splurging on extra thin lenses, a strong prescription means thicker lenses. When choosing your frames, you’ll find that slightly bolder acetate rims offset lens thickness in a more harmonious way.
- Eye position: Your eyes should be centred in each lens. This is useful for both aesthetic and optical reasons: it ensures optimal vision as well as pleasant symmetry.
How long does it take to get prescription glasses made?
Once you’ve placed an order, we validate your prescription, fabricate lenses tailor-made for your needs, and apply any additional coatings you’ve selected. Then, your eyeglasses are meticulously inspected by our eye care team before we ship them to your home or the store you selected. All in all, it takes between 10 and 15 days for your glasses to get to you, depending on the type of lenses you ordered.
For more information about your vision, take a look at the fascinating eye facts we gathered thanks to BonLook optometrist Dr. Steinberg!
