“…Numerous studies have analysed the ability of OCT to detect RNFL thickness abnormalities and changes in the macula of patients with neurodegenerative diseases. 10,11 Retrograde loss of nerve fibres in the retina and optic nerve may be an early biomarker of neurodegeneration in AD, even before hippocampal damage, which leads to memory impairment. 12 Recent studies have revealed the value of RNFL and macular measurements provided by OCT for detecting neurodegenerative disease progression and facilitating the diagnosis of diseases such as multiple sclerosis 10,13,14 and Parkinson's disease.…”