CPT® Code 92286

Anterior segment imaging is a diagnostic procedure aimed at assessing the health and integrity of the cornea, iris, and other structures located in the anterior segment of the eye. Specifically, CPT® Code 92286 refers to anterior segment imaging that incorporates specular microscopy and endothelial cell analysis. The cornea, which is a transparent layer at the front of the eye, consists of multiple layers, including the epithelium, stroma, and the single-celled endothelial layer, which is the innermost layer. The endothelial layer plays a crucial role in maintaining visual clarity by regulating the fluid balance within the cornea. It prevents aqueous humor from infiltrating the cornea and actively pumps excess fluid from the corneal stroma into the anterior chamber, thereby keeping the cornea in a dehydrated state essential for its transparency. However, endothelial cells are unique in that they do not replicate. If these cells are damaged due to disease or surgical intervention, the remaining cells must spread to cover a larger area, which can lead to a decrease in overall cell density. As the number of endothelial cells diminishes, the ability of the endothelial layer to maintain the cornea's dehydrated state is compromised, resulting in corneal cloudiness and a subsequent loss of visual acuity. Specular microscopy is a specialized imaging technique that provides a highly magnified view of a small area of corneal endothelial cells, allowing for detailed evaluation of cell density and configuration. The images captured through this method are typically recorded on videotape or photographic film, enabling comparison with previous images to document any changes in the endothelial layer over time. This procedure is essential for monitoring corneal health and guiding clinical decisions regarding patient care.