maandag 27 juni 2016

Xenia 051

The young lady put the trial frame on and Lord Lentilux put two lenses instead of one lens in front of each eye.

"The first lens is for short sight, the second lens is for astigmatism", he explained.

"Why does the second lens block a part of my view?"

"That's to determine the axis of the cylinder with precision. Sorry for the technical terms. Now please tell me what you see"

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