No Phoria
Purpose: Cover-Uncover test is used to examine for phoria or tropia. It is believed that most eyes are orthophoric or heterophoric, however we believe that there is always tropia, if a proper careful cover test is done. Design: Prospective observational study Methods: Visibly orthophoric cases witho...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wolters Kluwer Medknow Publications
2012-10-01
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| Series: | Delhi Journal of Ophthalmology |
| Subjects: | |
| Online Access: | https://journals.lww.com/10.7869/djo.2012.51 |
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| Summary: | Purpose:
Cover-Uncover test is used to examine for phoria or tropia. It is believed that most eyes are orthophoric or heterophoric, however we believe that there is always tropia, if a proper careful cover test is done.
Design:
Prospective observational study
Methods:
Visibly orthophoric cases without any ocular pathology were included and were examined by correct method of cover test by all authors and collected data were analyzed.
Results:
One thousand cases of 5-20 years age group, with 682 males and 318 females were included in this study. Cover test revealed a small angle deviation in all cases with exotropia commoner than esotropia. Small angle deviations were usually 2-10 prism diopters (PD), and no associated ocular pathology was present in microtropia. No phoria was present in any case.
Conclusion:
All eyes have tropias and no phorias are normally present. |
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| ISSN: | 0972-0200 2454-2784 |