“…(7,8). An important OCT parameter that is often used in a quantitative study is the retinal nerve fiber layer (RNFL) thickness (9,10). Composed of retinal ganglion cell axons, it is severely compromised in glaucoma, optic nerve tumors (gliomas), even in some neurological diseases observed in adults, but in the pediatric population, such as multiple sclerosis, Alzheimer's and Parkinson's diseases.…”