Reliability and agreement analysis among 5 subjective methods of ocular torsion measurement.

Objective: To evaluate the reliability in the measurement of ocular torsion and the agreement of the following subjective methods: double Maddox test, synoptophore, Gracis torsionometer, Harms screen and Awaya cyclodeviation test.

Method: Patients with vertical strabismus acquired in adulthood were recruited and ocular torsion was measured with the 5 methods described on three occasions. As a gold standard test does not exist, the one that obtained the best repeatability data was chosen as the reference test.

Congenital retinal macrovessels: Case presentation.

We present an uncommon case of a unilateral congenital retinal macrovessel documented with retinography, perimetry, fluorescein angiography and macular optical coherence tomography. In the case presented the macrovessel crossed the horizontal meridian, between macula and optic disk. A literature review has been performed on congenital retinal macrovessels, possible structural and visual alterations they may cause and their association with other pathologies.