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Ophthalmology & Optometry/Very Diff prescription from Optometrist vs opthamologist

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Question
Last Year I got my eye checked from Optometrist and below is Eye glass Prescription :
  SPH CYL AXIS
OD -150 -75 30
OS -200 -150 110

This year I went to opthamologist and prescription reads :
  SPH CYL AXIS
OD -2.75 +1.00 115
OS -3.75 +1.50 80

Not sure whey they are so different. Please help me understanding how they can be corelated.

Thanks for your Help.
Teena

Answer
Hi Teena, the difference is in the 'form' of plus vs. minus cylinder. If the ophthalmologist's rx was converted to minus form to compare it would be
OD -1.75-1.00x025
os -2.25-1.50x170
the new rx is a little stronger overall but the axis change for the left OS eye will either be better or worse, not about the same.  There may be a problem with the left eye's rx, not sure if there's a clerical error or not, sorry.
Best of luck,
Mitch Axelrod,OD

Ophthalmology & Optometry

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Mitchell Axelrod

Expertise

I'm happy to answer questions about eye exam findings and procedures, glasses and contact lens types/prescriptions/problems. I can also answer questions about general eye conditions/diseases. I do not answer questions concerning surgical techniques/procedures. Please state your age or within a small range when asking questions, as it is often important.

Experience

Optometrist 19 yrs.

Education/Credentials
Doctor of Optometry, cum laude; Residency in Ocular Disease

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