- Exophoria
Infobox_Disease
Name = Exophoria
Caption =
DiseasesDB =
ICD10 = ICD10|H|50|5|h|49
ICD9 = ICD9|378.42
ICDO =
OMIM =
MedlinePlus =
eMedicineSubj =
eMedicineTopic =
MeshID =Exophoria is a form of
heterophoria in which there is a tendency of theeye s to deviate outward.Prevalence
Exophoria is particularly common in infancy and
childhood , and increases with age.Cause
Exophoria can be caused by several factors, which include:
*Refractive errors - distance and near
deviation approximately equal.
*Divergence excess - exodeviation is more than 15 dioptres greater for distance than near deviation.
*Convergence insufficiency - near exodeviation greater than distance deviation.These can be due to
nerve ,muscle , or congenital problems, or due to mechanicalanomalies . Unlikeexotropia , fusion is possible in this condition, causingdiplopia to be uncommon.
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