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Factors That influence Lens Thickness

When to buy glasses, there room three primary components that affect your all at once lens thickness:

Prescription – your prescription is what will eventually determine just how thick your lenses will be. Merely put, the higher the prescription, the more thickness the lens. In addition, prescriptions through moderate to high astigmatism correction often an outcome in more thickness lenses.

You are watching: 1.57 mid index vs 1.61 high index

Lens material or Lens Index – The lens index describes the “index that refraction,” or just how much the lens bends the light the enters it. This ensures the the light is concentrated properly top top the retina, help you to see plainly when wearing your glasses. In general, the higher the index, the diluent the lens. (For example, a 1.61 lens is thinner than a 1.50 lens.) throughout the checkout process at Zenni, selecting a greater lens index will certainly be the many direct means to certain you have the thinnest lenses possible.  Lens Size – The all at once width and also height of her lenses can have a considerable influence on the thickness of the lenses themselves. The bigger the lens, the thicker it often tends to be. Once buying frames in ~ Zenni, the lens width and height space predetermined based upon the framework you choose.

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Next from choosing frames based on factors favor style and also face shape, friend should additionally shop based upon size, as well as your eye doctor’s recommendations.

Now the you know the ideal lens index options for your prescription, you can learn around the various lens choices that Zenni offers, such as light darkening and also blue light blocking lenses. And if this seems like a most information, nothing worry! The lens index the is encourage for your prescription during checkout will be the most ideal lens choice.