Re: DIY Lion into the cage ...

Graham. · 2017-11-22T15:13:37+00:00

On Wed, 22 Nov 2017 12:38:17 -0000, "Jim GM4DHJ ..." coalesced the vapors of human experience into a viable and meaningful comprehension... I have sometimes wondered if an instrument exists so a (half intelligent) patient could determine his own astigmatism metrics, by manipulation of a joystick to make an apparent ellipse circular. The way the optician traditionally determines this by repeatedly asking the patient "better or worse" seems prone to error.

Nov 22, 2017 21 Replies

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Mike Clarke 8 years ago

BTDTWTTS

But they had one advantage. Young children's heads can grow fairly rapidly compared to adults and the wire frames were easy to bend to accommodate the growth.

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harry 8 years ago

You must be the same age as me. I have an almost identical picture. I have had specs since I was five years old

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