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.
How is Decompensating exophoria treated?
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 is decompensated phoria diagnosed?
Any latent binocular misalignment that becomes symptomatic is considered to be a phoria that has “decompensated.” Symptoms of decompensated esophoria may range from simple headache to severe asthenopia and diplopia.
How is exophoria measured?
Using at least a 6 BD prism in front of the R eye for dissociation, a double image of the numbered line and downward pointing arrow should be seen. Results on the even numbered blue side indicate exophoria, and the odd numbered yellow side esophoria.
Can exophoria be corrected?
Once properly diagnosed, exophoria can be treated and corrected. It usually takes several months of regular treatment or exercises to correct exophoria. Most treatments are done at home, so it’s important that you do your exercises regularly as prescribed by your doctor.
How is exotropia diagnosed?
How is exotropia diagnosed?
- reading letters from an eye chart if your child is old enough to read.
- placing a series of lenses in front of the eyes to see how they refract light.
- tests that look at how the eyes focus.
What causes decompensated phoria?
Monocular diplopia is often caused by a problem in your cornea or the lens in your eye. Double vision that is only when both eyes are open is coming from a problem with the eye muscles. Many times true double vision is happening due to the eye muscles getting weaker as we age. We call this a decompensating phoria.
What does Tropia mean?
A tropia is a misalignment of the eyes that is always present. Even when the eyes are both open and trying to work together, large angle misalignments are apparent. A tropia is the resting position that your eyes go to when covered or when fusion is broken by repetitively alternately covering each eye.
What is normal exophoria?
Exophoria is when one eye drifts outward during uneven visual stimulation or when viewing objects up close. It’s most common when only one eye is covered. In such cases, the covered eye is the one that will drift outward.
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.
Can a decompensated exophoria be compensated?
Although this is often associated with a decompensated exophoria at near, the two can occur independently. compensate (Turville, cited by Giles, 1960). In most cases, the h eterophoria is fully decompensated. eye movement system fails to adequately overcome a heterophoria.
What is decompensated heterophoria and how is it diagnosed?
(PDF) Optometric prescribing in decompensated heterophoria. Optometric prescribing in decompensated heterophoria. Decompensated heterophoria is usually detected by the presence of certain symptoms including asthenopia, blurring, and sometimes doubling. These symptoms are non-specific in that they can be caused by other eye problems.
How is acquired comitant esotropia diagnosed in patients with decompensated esophoria?
Study population: Patients with decompensated esophoria who developed acute acquired comitant esotropia OBSERVATION PROCEDURES: Ophthalmic examination, stereopsis, and strabismus measurements at distance and near using prism cover tests in diagnostic gaze positions were performed.
What is decompensated esophoria?
Decompensated esophoria is a benign clinical entity causing acute, acquired, comitant esotropia treatable with enhanced medial rectus recession. Keywords: esophoria, esotropia