Homonymous hemiatrophy: characterizing macular ganglion cell atrophy in the visual pathway

Takeaway

  • Retrochiasmal lesions are associated with ganglion cell atrophy affecting one half of the macula, which manifests earlier in the optic tract than in retrogeniculate lesions.

Why this matters

  • Retrochiasmal lesions (located in the visual pathway between the optic chiasm and visual cortex) can lead to atrophy.

  • Macular involvement in these lesions has not been fully characterized, and it is not known how quickly atrophy occurs after lesion development.