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Question: What’s the difference between a tropia and a phoria?

Answer: These are terms to describe when the eyes are not in alignment with each other. A tropia is always present, while phorias are there “some of the time,” such as when the patient is tired or when fusion is broken (you cover an eye and it starts to drift).

For example: You can have an exotropia or esotropia. You can also have an exophoria and esophoria.



6 Comments



nice thanks



Comment by fadi — August 13, 2009



MARVELLOUS! KEER IT UP!



Comment by gashaw — September 13, 2009



thanks helped me i have my first px tomorrow lol!



Comment by danish — October 20, 2010



thankssssssssssss



Comment by mdkamal — July 6, 2011



Hi!

I was just wondering if a child has for example a left accommodative esotropia at distance (shown on cover/uncover test), would it also be present at near? Or because at near the patient is already accommodating at a near point, would it be hidden during cover test? Or at near would it be broken down with the alternating cover test and show up as a esophoria?

Thank you very much, not quite sure what happens at near ! Can you ever have a tropia in distance and phoria at near?



Comment by Abdel — January 9, 2013



so basically tropia ia always a manifest presence while phoria is hidden or in phoria phatients their eyes have the tendency to turn when in such comdition as feelung tired´╝č



Comment by jen — January 11, 2013




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