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Study links angle of accommodative esotropia and cessation of glasses for hyperopia
Acta Ophthalmol. 2009;87(5):532-537.
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Hyperopia resolved with good stereopsis in a group of patients identified with accommodative esotropia, a study showed.
"The degree of hyperopia seemed to correlate with the angle of esotropia and the age of successful cessation of corrective glasses," the study authors said.
The retrospective study included 123 patients with accommodative esotropia who achieved emmetropia and maintained orthophoria without hyperopic glasses.
"All patients had been prescribed the weakest possible glasses to provide best corrected vision and maintain fusion in hyperopia," the authors said.
Pure accommodative esotropia was identified in 64 patients, and partial accommodative esotropia was found in 59 patients. At the baseline visit, 56.1% of patients had refractive errors of 3 D to 5 D. Children with pure accommodative esotropia had an angle of esotropia without correction of 30.90 ΔD; those with partial accommodative esotropia had an angle of 42.70 ΔD. Non-accommodative power of the angle in partial accommodative esotropia was 24.07 ΔD.
Children ceased using glasses at a mean age of 13.5 years. Investigators identified stereopsis in 70.2% of patients during the baseline visit and 96.4% during the final visit.