[Magdalen] New specs

[Lynn Ronkainen]

Scott, I discovered almost 30 years ago that the 'Base curve' needs to be exact for my lenses/Rx to "work". This is the slight curve of the surface of the lens. I was told to make sure my lenses are always made as close to "exact" because any provider of lenses will tell you there is a small range of acceptability within the Rx outcome on the actual Rx and the base curve. The range does not work for me and this has been proved out on several occasions where the lenses had to be re-done. 
I also see a lot of totally flat surfaced lenses today which then have no base curve, and I wonder how that works for people. 
The field of lense making has become so completely automated that often the assumption is made that every lens is perfect. Not so. 
Lynn

Sent from my iPhone

On Sep 8, 2015, at 7:59 AM, Scott Knitter <scottknitter at gmail.com> wrote:

> On Tue, Sep 8, 2015 at 7:52 AM, Judy Fleener <fleenerj at gmail.com> wrote:
> Before my cataract surgery I wore my progressive lens all the time.  After
> cataract surgery my ophthalmologist said, "Don't buy my glasses."  I buy
> reading glasses; some at the dollar store, some at the drug store, some at
> the grocery store.  The most I have spent is $13.00, I also have some I
> bought for $1.  The frames are not very good on the dollar glasses.

For my current glasses, I went to the rock star of Chicago
optometrists (Dr. Watanabe, here in Edgewater). He runs the whole
practice himself, answers his own phone, and gives the impression he
wakes up thinking about optometry...highly experienced and committed.
Yet when I first got my glasses resulting from an eye exam with him, I
gave them two weeks but couldn't get used to the fog that seemed to
cloud my vision. I asked for a re-exam and he seemed chilly about the
need for it. "Do you have diabetes?" he asked. Nope. (He was probably
chilly because he had to eat the cost of the re-exam and the remaking
of the lenses...I did offer to pay for the second exam.) The new exam
resulted in an acceptable prescription. It's time for another exam and
updated glasses, and I'm wondering if I should go back to him or try
someone else. Probably him, but I'll read up on what time of day is
best for eye exams, what foods can affect an exam, etc. Maybe it's a
matter of getting away from a computer screen and having time to rest
the eyes before getting the exam - OR perhaps the eyes should be under
the normal stresses when examined. Not sure. I didn't think they'd
change that much.


-- 
Scott R. Knitter
Edgewater, Chicago, Illinois USA