• Forty-eight patients with Graves' eye disease, half of whom had extraocular muscle restriction, and 45 normal adult subjects underwent exophthalmometry while in the upright and the supine positions to determine whether the difference in measurement due to position would serve to differentiate the groups. A previous report claimed that the upright reading would be greater than the supine reading for normal subjects and patients with Graves' eye disease without clinical extraocular muscle involvement, whereas those with extraocular muscle restriction would show little change in their exophthalmometer readings. Our study showed an increase in exophthalmometer readings in going from the upright to the supine position for normal subjects and both groups of patients with Graves' eye disease. Furthermore, this test did not serve to differentiate these three groups.
Frueh BR, Garber F, Grill R, Musch DC. Positional Effects on Exophthalmometer Readings in Graves' Eye Disease. Arch Ophthalmol. 1985;103(9):1355–1356. doi:10.1001/archopht.1985.01050090107043
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