Hi! Is there a way to tell if I received the high index 1.74 lenses that I paid for??... I really don't think that's what I received. They are the same script of my last glasses from another place very comparable frame almost identical. I really feel as though, I got taken advantage of. -3.50 in both eyes & the lenses seem too thick to be 1.74 I don't even think they are one the index below that. Please, how can I tell that I got the lenses that I paid extra money for l??
Depending on the size of your frame, there is no difference between 1.67 and 1.74. I work as an optician and our 1.74 stock starts at -4.0. anything below that makes no sense for 1.74. Depending on the optician and lens manufacturer, the same lensmaterial can result in different thicknesses. This is because the minimum thickness is calculated differently. However, this should only make a small difference. Talk to your optician about your concerns and ask him for a solution. 😇
as someone with a -1.00 and .1.50 prescription for eyeglasses, is it worth going for a High Index lens or Polycarbonate lens? I'm currently looking at a pair of Ray-Bans and I'm trying to decide between the 'slim', 'thin', and 'extra thin' lens thickness options
Hey there! You won't notice a difference between the thickness of poly & Hi-Index with your Rx strength. Hi-Index is usually reserved for powers exceeding -/+ 4.00 and higher. Save some dough and stick with polycarbonate OR Trivex ✌️
HI Kristen! If you're using a frame with a large lens that holds a lot of volume, then a hi index material is something to consider if you want the appearance of a thinner lens. However, if your chosen frame has smaller sized lenses, you can likely get away with a polycarbonate or Trivex material as you won't notice the difference in overall thickness as much between the various options. To learn more, click the link below! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-qiqQ1K-9u0I.html
i have an eye with +8.25 prescription. I am looking for sport sunglasses for road cycling. Is there a way to search for frames that would be compatible with my prescription or by high index?
HI David! You'll more than likely require an insert paired with a cycling frame in order to accommodate the strong sphere strength. A high index lens material is a necessity as well. I included a link for the Rudy Project Exception below which is the typical go-to frame for extreme Rx strengths. For more information or to place an order, give us a call and speak with an optician! 888.831.5817
@@sportrxeyewear I had one more question. Do you recommend 1.61 or 1.67 for my prescription of -4.50/-4.00? I read online that 1.61 has better clarity but I also want the thinnest possible lenses.
Hi! It could be, thought it ultimately depends on the diameter and curvature of the lens. Myopic (minus) prescriptions will have the thinnest part of the lens at it's center. The lens thickness will increase moving outward from center radius towards the edge of the lens. For glasses with a small lens window, the thickness won't be nearly as recognizable compared to an oversized lens with lots of volume. With your Rx strength, a frame with a large lens size will more than likely warrant a 1.74 hi index lens. Though you can probably get away with 1.67 for an optical frame with a smaller lens diameter.
Hi! The perception of size when looking at someone wearing Hi-Index is relative to the strength of their Rx and the volume, or size of their lens window. The stronger the script and the bigger the lens shape, the more prevalent the difference in size of the eyes of the person wearing them will be.
