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products. Orders may be placed over the phone or via
our online Order Form.
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Ophthalmic laboratory technicians should not be confused
with workers in other vision care occupations. Ophthalmologists
and optometrists are “eye doctors” who examine
eyes, diagnose and treat vision problems, and prescribe
corrective lenses. Ophthalmologists are physicians who
perform eye surgery. Dispensing opticians, who also
may do the work of ophthalmic laboratory technicians,
help patients select frames and lenses, and adjust finished
eyeglasses. (See the statement on physicians and surgeons,
which includes ophthalmologists, as well as the statements
on optometrists and opticians, dispensing, elsewhere
in the Handbook.)
Ophthalmic laboratory technicians read prescription
specifications, select standard glass or plastic lens
blanks, and then mark them to indicate where the curves
specified on the prescription should be ground. They
place the lens in the lens grinder, set the dials
for the prescribed curvature, and start the machine.
After a minute or so, the lens is ready to be “finished”
by a machine that rotates it against a fine abrasive,
to grind it and smooth out rough edges. The lens is
then placed in a polishing machine with an even finer
abrasive, to polish it to a smooth, bright finish.
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