Effects of Androgens on the Thickness of Retinal Layers in Transgender Men and in Women with Polycystic Ovarian Syndrome.

Purpose: This study aimed to evaluate the relationship between androgens and the retinal thickness by comparing the macular thickness (MT), retinal nerve fiber layer (RNFL), and ganglion cell complex (GCC) thickness of female-to-male transgender men (TGM), women with polycystic ovary syndrome (PCOS), and cisgender women (CW).

Methods: Thirty-four eyes of 34 TGM, 34 eyes of 34 women with PCOS, and 45 eyes of 45 CW were evaluated by optical coherence tomography. One-way analysis of variance and body mass index (BMI)-adjusted one-way analysis of covariance were conducted to test the differences between groups for statistical evaluation.

Results: The parafoveal MT in TGM was significantly higher than women with PCOS and CW (<0.001 and =0.022, respectively). After adjusting for BMI, the perifoveal MT in TGM was significantly higher than women with PCOS and CW (=0.041 and =0.021, respectively). The nasal RNFL thickness in TGM was significantly higher than women with PCOS and CW (=0.021 and =0.009, respectively). The means of average and inferior RNFL, fovea, and the mean of all GCC values were higher in the TGM group than women with PCOS and CW, but these results were not statistically significant.

Conclusions: In this study, there was a significant difference between the TGM group and the CW group for the thickness of the nasal RNFL and parafoveal and perifoveal macular area. Androgens may have the potential to increase retinal thickness in TGM; however, there is a need for validation in larger study groups. Clinical Trial Registration Number: HNEAH-KAEK 2021/4.