Which diagnostic test is most accurate for assessing a suspected orbital floor fracture after eye trauma?

The most accurate diagnostic test for assessing a suspected orbital floor fracture after eye trauma is a facial x-ray. This imaging technique is specifically designed to provide clear visualization of the facial bones, including the orbital area. When evaluating for orbital fractures, facial x-rays can help confirm the presence of bone displacement, fractures, and any involvement of the sinuses.

While other options have their specific uses in ophthalmology or trauma assessment, they do not provide the same level of detail regarding bone structure and integrity. Schiotz tonometry is primarily used to measure intraocular pressure, which is important for glaucoma screening but does not assess fractures. Fluorescein angiography is useful for evaluating retinal and choroidal vascular conditions rather than bone injuries, and slit lamp biomicroscopy is used to examine the anterior segment of the eye, helping to identify conditions like corneal abrasions or lens problems but not fractures of the orbit. Therefore, facial x-ray is the most appropriate test for diagnosing orbital floor fractures.