I also thought they meant eyeglasses. I used glasses for a few years and never cared much for chromatic aberration, but once I started to use contacts, going back to glasses makes it very noticeable, specially on the periphery of the lens. Lenses on glasses need to be very high quality to approach the image quality of contacts in terms of distortion.
Last year I got a new prescription and the optometrist convinced me to switch to higher refractive index lenses, because they are thin, light, don't have a subtle yellow hue like CR-39, don't distort the facial features and so on. I agreed and couldn't wear them at all due to insane chromatic aberration. After a few complaints they relented and replaced the lenses with CR-39 and I have been happy ever since.
jwrallie|2 years ago
orthoxerox|2 years ago