Advance For Astigmatism

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My 6year Old Son Was Recently Prescribed Glasses For Astigmatism In Both Eyes. My Husband Wants A Second Opin?

November 18, 2009 by admin  
Filed under FAQ on advance for astigmatism

is this common and will glasses help to correct the problem?

I Have A Slight Astigmatism Is It Normal To Be Prescribed Weaker Contact Lenses?

August 30, 2009 by admin  
Filed under FAQ on advance for astigmatism

Being prescribed a weaker precription is not usually due to astigmatism (although it can seem like that – see below). The main cause of the contact lens prescription being different to the spectacle prescription is the fact that the contact lenses sit on the cornea (i.e. the Back Vertex Distance is zero), whereas the spectacle prescription is taken at a further distance from the cornea (approx 10-14mm Back Vertex Distance). This back vertex distance influences the prescription so those who are short-sighted have contact lens prescriptions weaker than their specs, and those who are long sighted have contact lens prescriptions that are stronger than their specs.
An astigmatism means you have 2 different presciptions perpendicular to each-other, i.e. your prescription might read -2.50 / +0.50 x 180 (the 2nd two numbers representing the astigmatism), which means you have a -2.50 prescription in one direction (along 180 axis), and a -2.00 prescription in the other direction (along the 90 axis). What the optician will do is normally choose a prescription in between the the powers for low astigmatism (in this example, -2.25), or if the astigmatism is strong they will order you a toric lens.

If I Have Astigmatism In One Eye, Can I Just Get Regular Prescribed Contacts Or Ones Specialized In That?

August 9, 2009 by admin  
Filed under FAQ on advance for astigmatism

That depends on the degree and type of astigmatism. Some people can get away with regular (or spherical) lenses and others need torics (lenses for astigmatism) to see clearly. Your best bet is to check with your eye doctor.

Can I Still Get Prescribed Coloured Contacts With An Astigmatism?

July 28, 2009 by admin  
Filed under FAQ on advance for astigmatism

ive been wearing normal contacts for months and now i want coloured ones. I have an astigmatism in one eye. One optician i asked said that means i can’t get coloured contacts another said i can. hellllllllllllllllllp? my eye colour sucks