What is the difference between thin lenses and extra thin lenses?!
Question: What is the difference between thin lenses and extra thin lenses!?
my prescription is 3!.00+ and i have quite large eyes anyway!. will the extra thin lenses make my eyes look their normal size or much the same as the thin lenses!?
thanksWww@Answer-Health@Com
thanksWww@Answer-Health@Com
Answers:
The thin lenses are measured by their index of refraction!.!.!.
Regular lenses are 1!.49
Next step up is the 1!.56 , which is 28% thinner than the 1!.49
Polycarbonate at 1!.58 is pretty well the same as the 1!.56
Then the 1!.6 which is 40% thinner than the 1!.49
Then 1!.67 which is 13% thinner than the 1!.6
Then the 1!.74 which is about 10% thinner than the 1!.67
But, there are limitations as to which one will work best for certain prescriptions!.
With a + 3!.00 that you have, you should be no higher than the 1!.6
The 1!.67 is not recommended under +/- 6!.00
The 1!.74 is not recommended under +/- 8!.00
If the index is too high it causes all kinds of problems with distortion!.
Being a + power, you will always have some of that magnifying effect, but the 1!.6 with a good anti reflection coating and a small frame should be pleasing to you!.Www@Answer-Health@Com
Regular lenses are 1!.49
Next step up is the 1!.56 , which is 28% thinner than the 1!.49
Polycarbonate at 1!.58 is pretty well the same as the 1!.56
Then the 1!.6 which is 40% thinner than the 1!.49
Then 1!.67 which is 13% thinner than the 1!.6
Then the 1!.74 which is about 10% thinner than the 1!.67
But, there are limitations as to which one will work best for certain prescriptions!.
With a + 3!.00 that you have, you should be no higher than the 1!.6
The 1!.67 is not recommended under +/- 6!.00
The 1!.74 is not recommended under +/- 8!.00
If the index is too high it causes all kinds of problems with distortion!.
Being a + power, you will always have some of that magnifying effect, but the 1!.6 with a good anti reflection coating and a small frame should be pleasing to you!.Www@Answer-Health@Com
i have a prescription of -4!.50 in each eye!.
i tried the mega, super, ultra thinlenses and really didnt get on with them!.!.!.i was getting a lot of distortion in my peripheral vision and chromatic abberation (purple fringing on bright lights)!.
I down stepped the standard thinner lenses and now they are fine!. Www@Answer-Health@Com
i tried the mega, super, ultra thinlenses and really didnt get on with them!.!.!.i was getting a lot of distortion in my peripheral vision and chromatic abberation (purple fringing on bright lights)!.
I down stepped the standard thinner lenses and now they are fine!. Www@Answer-Health@Com
extraWww@Answer-Health@Com
you kinda answered your question in the question title, some are extra thin and some are not lolWww@Answer-Health@Com
one is thinner than the other lolWww@Answer-Health@Com