What is a Decompensating exophoria?
Decompensated distance exophoria was defined as >4 pd exophoria in the primary position PLUS abnormal +ve fusional reserves or symptoms of diplopia or suppression. Decompensated near exophoria was defined as >8 pd exophoria PLUS NPC >10 cms or symptoms of diplopia or decreased stereopsis or suppression.
What causes decompensated exophoria?
The main optical cause of decompensation is uncorrected refractive error, arising primarily as a consequence of the relationship between accommodation and accommodative-convergence.
How do you treat exophoria?
Some common treatment methods include: Glasses. You can get special glasses that have prisms in the lenses. These prisms can help reverse the outward eye movement of exophoria and lessen eye strain.
How do prisms correct exophoria?
The formula: Prism needed = 2/3(phoria) – 1/3(compensating fusional vergence). So, if a patient has 6∆ exophoria and base-out (BO) to blur is 6∆, the prism needed would be 2/3(6) – 1/3(6), or 4 – 2.
How is divergence excess treated?
Treatment of Divergence Excess The best available treatment option for Divergence Excess is Vision Therapy. Fortunately, Vision Therapy has proven very effective at eliminating the symptoms associated with Exophoria and Divergence Excess.
How do you test for decompensated phoria?
The classic presentation for a decompensated phoria/tropia is diplopia. If the tropia is constant the diplopia is constant, and the degree may change from distance to near, but should not change with different directions of gaze.
How do you treat exotropia naturally?
Start by holding a pencil out at arm’s length, pointing away from you. Focus your gaze on the eraser or a letter or numeral on the side. Slowly move the pencil toward the bridge of your nose. Keep it in focus for as long as you can, but stop once your vision gets blurry.
What is basic exophoria?
DEFINITION: A sensorimotor anomaly of the binocular visual system, characterized by a tendency for the eyes to diverge at distance and near relative to the normative data.
What is basic Exophoria?
How do you test for Exophoria?
Eye positioning is tested using a cover test. A clinician covers one eye at a time, and then alternates between the eyes to disrupt fusion and watch how the eyes react.