An OD, or Doctor of Optometry, is a healthcare professional who specializes in eye care, including vision testing, prescribing glasses and contact lenses, and diagnosing certain eye conditions. In contrast, an ophthalmologist is a medical doctor (MD or DO) who specializes in eye and vision care, including performing eye surgery and treating more complex eye diseases. While both ODs and ophthalmologists provide eye care, ophthalmologists have a broader medical training and can perform surgical interventions.
TT is telegraph transfer and OD is on demand.
what is difference between NB & OD in pipe size
In eye prescriptions, "OS" refers to the left eye and "OD" refers to the right eye.
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An ophthalmologist is trained as a physician and has gone to medical school, which makes them an M.D. (Doctor of Medicine) or a D.O. (Doctor of Osteopathic Medicine). An optometrist, on the other hand, is an O.D. (Doctor of Optometry or Occulis Doctor).
Try this site:* http://arthistory.about.com/od/movements/f/eramoveperiod.htm
The order of the letters. For a more definitive answer, you'd need to give us some kind of context.
NB = inside diameter of the tube. OD = outside diameter of the tube.
There is no corelation between a cylinders ID to OD.
The bill must go through an extra committee in the House, the Rules Committee.
around £200,000 a year
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