eLife Assessment
This study provides a fundamental advancement in our understanding of trabecular meshwork cell diversity and its role in eye pressure regulation and glaucoma using multimodal single-cell analysis, spatial validation, and functional testing that go beyond the current state-of-the-art. The study demonstrates that mitochondrial dysfunction, specifically in one of three distinct cell subtypes (TM3), contributes to elevated IOP in a genetic mouse model of glaucoma carrying a mutation in the transcription factor Lmx1b. While the identification of TM3 cells as metabolically specialized is compelling, there is somewhat limited evidence linking mitochondrial dysfunction to the Lmx1b mutation in TM3 cells.