High Index Lenses: Men's Eyeglasses

Video Transcript

Now I’m going to talk to you about the lens option of high index lenses. High index lenses are going to be a compressed plastic lens that thins down your prescription. We generally recommend high index lenses for an individual that has a prescription over a minus two. Okay, we try not to recommend that to somebody under a minus two because that’s generally a overkill, you’re not dealing with a whole lot of thickness at that point. High index lenses are going to weigh less; they are going to be more lightweight so you’re not going to have to feel the lens weight on your nose and on your face so a lot of patients who have really stout prescriptions, that becomes uncomfortable. So if you have over a minus two, you might want to consider doing a high index lens. There are different grades of a high index lens and you’re going to hear a lot of different names thrown around. Some stores, or people who sell, optician's sell glasses that, then they call them, they’re featherweights, they’re lightweights. Lot’s of different terminology is thrown around for high index lenses. Generally speaking when you are talking about high index lenses, you’re talking about numbers. The numbers we’re going to refer to are 1.60 and 1.67. The higher the number the lighter weight the lenses. There is also a 1.71 and a 1.74, with those options you have to, have to get the anti-reflective coating, which can add to the expense. So it all depends on how often you are going to wear your glasses as to whether that is going to be advantageous. I would generally say though with each step you go up, with each index of refraction that you go up from 1.60 to 1.67, you’re going to generally save about a millimeter to a millimeter and a half of edge thickness of the lenses. That’s again a general rule of thumb it can differ from frame to frame. There are a lot of measurements that come into play but high index is one of those options that can add to the look of your glasses and how they feel.

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