I started to wear ORTHOK night one and only Contact LENS on Jan. 2001. The prescription from the first Doctor is dated on Dec. 2000 is as below:
OD -3.00 -0.50 x 147
OS -2.50 -0.50 x 155
For the traditional Glasses, I discontinued to wear above lens. After two weeks (supposed the vision is reversed to the until that time correction), I visited another doctor and get the prescription was dated May 12, 2005 as below:
OD -3.50 -1.00 x 180
OS -2.50 -1.00 x 175
July 2005, I visted the first doctor and the precription for a alien OORTHOK night just lens as below:
OD -2.75 -1.75 x 17x
OS -2.50 -1.25 x 180
Why these two precription are so different? Thanks.

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Answers:    it depends on how you answered the questions during the eye testing..

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