Hyaluronan in the exfoliation syndrome

Purpose: To histochemically analyze if the glycoseaminoglycan component of pseudoexfoliation material consists of hyaluronan. Methods: The hyaluronan binding region of cartilage proteoglycans was utilized in a staining specific for hyaluronan. The technique has been described and employed previously Human donor eyes with and without the presence of visible pseudoexfoliations were analyzed. Results: Hyaluronan was found to coat the fibrillar exfoliation material on the lens, the zonules, the iris epithelium and the ciliary body. It was also found on a capsular bag following cataract surgery. Conclusion: In the anterior chamber hyaluronan constitutes one part of the exfoliation material. Abnormal findings of hyaluronan could be found in the cornea.