AS

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AS

The two-character ISO 3166 country code for AMERICAN SAMOA.

AS

1. ISO 3166-1 alpha-2 code for American Samoa. This is the code used in international transactions to and from American Samoan bank accounts.

2. ISO 3166-2 geocode for American Samoa. This is used as an international standard for shipping to American Samoa. As a territory of the United States, American Samoa is also assigned the geocode ISO 3166-2:US-AS.
References in periodicals archive ?
It is particularly beneficial for treating high myopia, high astigmatism or other time-intensive procedures.
However, internal astigmatism did not change in response to changes in the shape of the eyeinstead, it remained relatively stable over time.
The inclusion criteria were uncomplicated senile cataract, patients with preoperative astigmatism between 0.
Ahmed and Zuberi [5] also found astigmatism in 59% and hypermetropia in 11% patients with headache.
Keywords: Auto refractor, Keratometer, WTR, ATR, Oblique astigmatism, Prevalence.
An astigmatism can also be corrected by surgery where the cornea is reshaped to get rid of the uneven curve.
The progressive lenses are made out of a 55-percent-water hydrogel known as vifilcon A, the same material that CIBA Vision uses for its monthly and weekly lenses and lenses for astigmatism.
Of course, noncritical viewing can be enjoyed even with clearly visible astigmatism.
Astigmatism is incredibly common, affecting 32% of the adult European population.
They write, These data support the recommendation for full-time spectacle wear in astigmatic students, particularly those with high astigmatism.
The author presents his method of astigmatism analysis, the Alpins Method, which uses vector analysis to correct astigmatism, detailing the method from preoperative planning to postoperative analysis.