B-Scan Ocular Ultrasonography

B-scan ultrasonography, also known as Brightness scan, is a diagnostic imaging technology used in ophthalmology to provide a two-dimensional cross-sectional view of the eye and the orbital structures. The examination is performed externally over the closed eyelid, making it especially useful when direct visualization of the eye is not possible. B-scan is particularly valuable in cases where routine eye examination is difficult due to conditions such as eyelid swelling, severe cataracts, corneal opacities, keratoprosthesis, or tarsorrhaphy. It allows ophthalmologists to clearly assess internal eye structures including the vitreous, retina, choroid, sclera, and lens. This technology plays a key role in diagnosing retinal detachment, vitreous hemorrhage, tumors, and other intraocular abnormalities. B-scan is often used alongside A-scan ultrasonography to provide a comprehensive evaluation and accurate diagnosis of various eye conditions.