Orbscan

Orbscan is a diagnostic imaging device used primarily in ophthalmology to assess the anterior segment of the eye, particularly the cornea. Developed by Bausch + Lomb, it combines slit-lamp biomicroscopy with Scheimpflug imaging technology to provide detailed cross-sectional views of corneal structures. The device is widely employed in clinical settings for diagnosing and monitoring corneal diseases, planning refractive surgeries such as LASIK, and evaluating corneal topography.

The Orbscan operates by projecting a slit beam of light onto the cornea while capturing high-resolution images from multiple angles. These images are then processed to generate a three-dimensional map of the corneal surface and anterior chamber. The system offers measurements of corneal thickness, curvature, and volume, as well as assessments of irregularities such as keratoconus or corneal scarring. Its non-contact nature makes it particularly useful for patients who may be uncomfortable with traditional corneal topography methods.

Beyond clinical diagnostics, Orbscan is utilized in preoperative evaluations for corneal transplants and intraocular lens implants. It aids surgeons in selecting appropriate surgical techniques and devices by providing precise anatomical data. The device has also been integrated into research studies to improve understanding of corneal health and disease progression.

While Orbscan provides valuable insights, it has some limitations. The imaging quality can be affected by factors such as dry eyes or media opacities, and it may not capture posterior corneal details as effectively as other imaging modalities. Despite these considerations, Orbscan remains a cornerstone in corneal diagnostics due to its accuracy, speed, and ease of use.