What goes where, again?
Jun. 28th, 2008 11:29 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
sawylThis morning, I changed my contact lenses. I fished out some new boxes, found that one was labelled with a big R and shoved the contents into my eyes as directed. I wasn't particularly pleased to find that my sight was noticeably worse than with my last pair, so I compared the numbers.
Sure enough, the new lenses were very slightly different — a half-diopter to the spherical in one eye and, oddly, a ten degree tweak change to one of the cylindricals — so I decided that I'd live with it for now, see if things improved as I got used to the new prescription and, if they didn't, make an appointment with the eye doctor for next week.
After a couple of hours, I finally got fed up with the situation. I rechecked the prescription numbers on the box and noticed that the one with what I now realised was the correction for my left eye was the one helpfully labelled R by the opticians. Oops. So I switched the lenses round and suddenly, miraculously, the whole world was pin-sharp. Sharper than it had been with my old lenses.
Lessons learnt? To ignore any helpful letters added to the box; to check the prescriptions properly beforehand; and to remember that the left lens is the one with the stronger cylindrical correction.
Sure enough, the new lenses were very slightly different — a half-diopter to the spherical in one eye and, oddly, a ten degree tweak change to one of the cylindricals — so I decided that I'd live with it for now, see if things improved as I got used to the new prescription and, if they didn't, make an appointment with the eye doctor for next week.
After a couple of hours, I finally got fed up with the situation. I rechecked the prescription numbers on the box and noticed that the one with what I now realised was the correction for my left eye was the one helpfully labelled R by the opticians. Oops. So I switched the lenses round and suddenly, miraculously, the whole world was pin-sharp. Sharper than it had been with my old lenses.
Lessons learnt? To ignore any helpful letters added to the box; to check the prescriptions properly beforehand; and to remember that the left lens is the one with the stronger cylindrical correction.
