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Newman NJ, Scherer R, Langenberg P, et al. (September 2002). "The fellow eye in NAION: report from the ischemic optic neuropathy decompression trial follow-up study". American Journal of Ophthalmology. 134 (3): 317–28. doi:10.1016/S0002-9394(02)01639-2. PMID12208242.
Boshier A, Pambakian N, Shakir SA (September 2002). "A case of nonarteritic ischemic optic neuropathy (NAION) in a male patient taking sildenafil". International Journal of Clinical Pharmacology and Therapeutics. 40 (9): 422–3. doi:10.5414/cpp40422. PMID12358159.
Akash R, Hrishikesh D, Amith P, Sabah S (August 2005). "Case report: association of combined nonarteritic anterior ischemic optic neuropathy (NAION) and obstruction of cilioretinal artery with overdose of Viagra". Journal of Ocular Pharmacology and Therapeutics. 21 (4): 315–7. doi:10.1089/jop.2005.21.315. PMID16117695.
Tesser RA, Niendorf ER, Levin LA (October 2003). "The morphology of an infarct in nonarteritic anterior ischemic optic neuropathy". Ophthalmology. 110 (10): 2031–5. doi:10.1016/S0161-6420(03)00804-2. PMID14522783.
Hayreh SS (March 1999). "Retinal and optic nerve head ischemic disorders and atherosclerosis: role of serotonin". Progress in Retinal and Eye Research. 18 (2): 191–221. doi:10.1016/S1350-9462(98)00016-0. PMID9932283. S2CID24248680.
Seiffge D, Kiesewetter H (1981-11-01). "Effect of pentoxifylline on single red cell deformability". Klinische Wochenschrift. 59 (22): 1271–2. doi:10.1007/bf01747760. PMID7311396.
Hayreh SS (March 1999). "Retinal and optic nerve head ischemic disorders and atherosclerosis: role of serotonin". Progress in Retinal and Eye Research. 18 (2): 191–221. doi:10.1016/S1350-9462(98)00016-0. PMID9932283. S2CID24248680.