Hi all! After reading quite a bit on this forum, I decided to get a test lens kit. I got a used kit on ebay, glass lenses, full size; Marco brand, “made in Japan”. It arrived today. It was a complete mess, with all the lenses mis-filed, and dirty, but after a few hours of cleaning and sorting, it looks great, and ‘most’ lenses seem present.
So this is my first ever encounter with such a beast. After playing around a bit, a few things occurred to me;
- are test lenses ‘directional’ in any way - that is, does it matter which ‘side’ you put to the eye?
- Is there a preferred or required placement for the cylinder lenses vs the sphere lenses?
- I tried to set my known cyl/axis but wasn’t clear on how to position the cylinder lens. There are two engraved lines on the lens, but - as indicated in my question 1 - I’m not sure if there’s a ‘side’ I should be facing inwards.
Thanks for any advice you can give! Also - I understand this forum is dedicated to myopia (the ending thereof!); does anyone know of a similar ‘high quality’ forum that addresses presbyopia, which my girlfriend has? Or perhaps, more to the point, a ‘high quality’ forum that discusses the general challenges with finding a good prescription; she’s struggled for 20+ years to get glasses that actually ‘work’ for her.