Characteristics of Pentosan Polysulfate Sodium-Associated Maculopathy and Similarities With Other Maculopathies Commonly Managed in a Retina Practice.

Purpose: This work describes characteristics of pentosan polysulfate sodium (PPS)-associated maculopathy and its similarities with common maculopathies in a retina practice cohort.

Methods: Thirty-two patients were identified through electronic medical record query who were exposed to PPS. One patient was excluded for lack of retinal imaging. Thirty-one patients (62 eyes) were included. A retrospective review was used to obtain patient characteristics, examination findings, and retinal imaging of the study patients. Classification into "likely," "unlikely," or "possible" to have PPS-associated maculopathy groups was based on the fundus photography and retinal imaging. Main outcome measures were best-corrected visual acuity, age, sex, diagnosis of reason for referral, allocation into designated maculopathy group, and presence of choroidal neovascularization.

Results: Of 31 patients (62 eyes), the median age was 70 years (range, 24-104 years) and the majority were women (87%). Mean best-corrected visual acuity was 0.3 ± 0.4 logMAR at presentation. The most common reason for referral was age-related macular degeneration (29%). Maculopathy grades were "likely" (29%, 9 total patients), "possible" (26%, 8 total patients), or "unlikely" (45%, 14 total patients). Choroidal neovascularization was noted in 9.7% of all eyes and 11% of eyes in the "likely" group. The "possible" and "likely" groups had older ages of presentation ( < .05) compared with the "unlikely" group.

Conclusions: A high percentage (55%) of patients with a history of chronic PPS exposure showed features of "likely" or "possible" maculopathy. Similarities with common maculopathies such as age-related macular degeneration and the importance of screening and recognizing at-risk patients are highlighted.