Why are my lenses so thick, Do I need higher index lenses
If your eye prescription is high, your lenses will need to be cut thicker to correct your vision correctly. Luckily, choosing higher index lenses for your glasses means they can be thicker and still correct your vision perfectly.
If you have a high eyeglasses prescription, high index lenses are recommended to ensure that your lenses are as thin as possible. As well as looking good, thin lenses reduce the total weight of your eyeglasses, making them more comfortable to wear for long periods of time.
For more information and lens thickness, check out our lens thickness guide.