Not that anybody is interested...

Jimmy Stewart ... was thinking very hard :

Yes, you can insist.

Yes they are meant to give you the results. I usually buy a very cheap pair of glasses to keep in the car for emergency use. I once had the screw fall out of my glasses frame followed by the lens dropping out whilst driving and the spare pair allowed me to carry on with my journey.

Some countries require you to carry a spare pair when driving.

I am due an eye test soon, but up to now, although my long sight has never been good and short is deteriorating, I've always fallen on the legal to drive without glasses side - although I frequently have a spare pair in the car anyway.

I believ they are not obliged to give you the PD. So I ask.

I'm sorry to hear that. How did they test the severity of the cataract? Does it stop you driving during the day too?

Some friends with partial cataracts would avoid driving at night.

But its so easy to measure your PD. Take a selfie with your smart phone with a ruler held at eyebrow level.

I have got SWMBO to do that. In fact I measure from mid nose to the centre of my right eye, then double it. That's more accurate - for me.

Unless something has changed and i've missed it they are legally obliged to give it to you whether you ask or not.

think it's time for you to do all the things in that old shagged out KIA you were telling me to do...tee hee

Many email it these days. I would say this though, if you have had an eye trauma recently the sight can be better for some days. Nobody knows why this can revive some dead retinal cells for them to just go downhill afterwards. Brian

I took a sneaky photo of the PC screen in specsavers while the person had gone off to speak to a colleague, they measure the PD and OC per eye

Hi Bob

Huh?

I measure my PD myself as well. But how is that method more accurate than measuring the actual PD in full?

J^n

Mine was done manually! Single value.

I said - for me.

My left eye is missing. I'm only concerned about the position of the right lens.

The PC didn't do the measuring, it was just where they entered the values for dispensing/manufacturing.

.-)

No, I mean they measured all the way across...the value they gave me was total distance between pupils. What they had on the PC is another matter!

I know - I was curious about the clarification

Fair enough. It didn't seem likely that your nose was *by definition* half-way between. I didn't think laterally enough, thanks.

Laterally - I like that! Sorry, I thought most people knew.

I think the OC is mainly needed for varifocals. For single vision glasses the optician held a ruler up to determine the PD. For varifocals I looked through a device and the optician noted stuff or made marks on something, except when I was using existing frames, when she looked at me wearing the old glasses and put marks on the lenses.