opt

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OPT

Abbreviation for:
ocular photodynamic therapy
opisthotonos
optic pathway tumour
optician
oral provocation test 
outpatient treatment

opt

To select one thing rather than another.
References in periodicals archive ?
It is difficult to assign a firm answer to the basic question of whether or not opting out is a good idea.
Finally, by affirmatively opting in, class members have signaled a more reliable preference for the class mechanism over alternatives.
The actual procedure for opting out of Medicare is very simple and straightforward.
Few state departments of education give parents and the public information about opting out.
30 blog post "Opting Out of Medicaid Expansion: The Health and Financial Impacts" is available at www.healthaffairs.org/blog.
(1.) Heijman RLJ et al., Opting out increases HIV testing in a large sexually transmitted infections outpatient clinic, Sexually Transmitted Infections, 2009, 85(4):249-255.
Opting out may be a response to specialty-specific reductions in income due to cuts in the MFS.
The links are now required by federal law, but conventional wisdom suggests "opting out" often has the opposite effect, because it announces to the spammer that the e-mail address is accurate and active.
Crosbie calls this consumer marketing method "opting in." Its antithesis is "opting out," meaning anyone can send you anything, and you have to tell them to not to send you any more.
Among its provisions, Gramm-Leach-Bliley requires financial institutions to allow consumers to prevent the sharing of their personal information with other non-affiliated companies by "opting out" of such transactions.
More and more physicians are considering opting out of Medicare, as well as many other payment plans.
There are many different levels of agreeing to receive information, called "opting in," over the internet.