{Reference Type}: Review {Title}: Chiasmal Compression by the Third Ventricle in Obstructive Hydrocephalus: Case Report and Review of the Literature. {Author}: Guniganti R;Kiser K;Goyal M;Reynolds MM;Van Stavern GP; {Journal}: J Pediatr Ophthalmol Strabismus {Volume}: 60 {Issue}: 5 {Year}: 2023 Sep-Oct {Factor}: 1.33 {DOI}: 10.3928/01913913-20230719-01 {Abstract}: The authors review the phenomenon of third ventricular dilation causing chiasmal compression and vision loss, emphasize the need for further study given continued poor outcomes, and, in a patient case, illustrate the value of obtaining magnetic resonance imaging and nerve and macular optical coherence tomography in a patient with an unclear mechanism of vision loss. [J Pediatr Ophthalmol Strabismus. 2023;60(5):e49-e54.].