If you have a strong prescription over +/-3.00, you probably were given the option to upgrade to high index lenses. I will explain why I still chose polycarbonate lenses over high index lenses.
I had my annual eye check up recently. My prescription changed slightly from last year.
The optometrist said the index for one eye decreased while the other increased. I’m not sure why and how it was possible for my eyesight to “improve” on one eye. She said it’s normal to make adjustments.
The optometrist suggested high index lenses, because high index lenses are thinner. I asked if it was necessary. She said no if the weight does not bother me.
The optometrist handed me over to the optician to go over my options. I’ll call this optician Rachel.
The polycarbonate lenses are thinner than regular plastic lenses, but not as thin as the high index lenses.
For demonstration purposes, Rachel provided me a visual simulation on her iPad on a super high prescription like -8. She explained that the high index lenses will be thinner.
For someone like me who is nearsightedness (or can’t see far), this means thinner edges. For someone who is farsightedness (or can’t see near), this provides even more benefit, because…
