7T MRI reveals asymmetric LGN volumes unchanged between moderate and advanced retinitis pigmentosa

Lateral geniculate nucleus (LGN) volume on 7T MRI is similar in moderate vs advanced retinitis pigmentosa (p=0.91), but right LGN consistently larger than left (p<0.001).

• In the moderate RP group, left LGN volume correlated with visual acuity (ρ=0.64) and central retinal thickness (ρ=0.71).
• Age showed a trend toward decreasing LGN volume (p=0.06) across all patients, with no gender effect.

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