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Papillary vitreous detachment linked to pathogenesis of non-arteritic anterior ischaemic optic neuropathy
![Papillary vitreous detachment linked to pathogenesis of non-arteritic anterior ischaemic optic neuropathy Papillary vitreous detachment linked to pathogenesis of non-arteritic anterior ischaemic optic neuropathy](https://medicaldialogues.in/h-upload/2023/04/18/750x450_207709-30818tn.webp)
Papillary vitreous detachment may play an important role in non-arteritic anterior ischaemic optic neuropathy (NAION) pathogenesis suggests a new study published in the British Journal of Ophthalmology
A study was done to evaluate the role of papillary vitreous detachment in the pathogenesis of non-arteritic anterior ischaemic optic neuropathy (NAION) by comparing the features of vitreopapillary interface between NAION patients and normal individuals.
This study included 22 acute NAION patients (25 eyes), 21 non-acute NAION patients (23 eyes) and 23 normal individuals (34 eyes). All study participants underwent swept-source optical coherence tomography to assess the vitreopapillary interface, peripapillary wrinkles and peripapillary superficial vessel protrusion. The statistical correlations between peripapillary superficial vessel protrusion measurements and NAION were analysed. Two NAION patients underwent standard pars plana vitrectomy.
Results
Incomplete papillary vitreous detachment was noted in all acute non-arteritic anterior ischaemic optic neuropathy (NAION) patients.
The prevalence of peripapillary wrinkles was 68% (17/25), 30% (7/23) and 0% (0/34), and the prevalence of peripapillary superficial vessel protrusion was 44% (11/25), 91% (21/23) and 0% (0/34) in the acute, non-acute NAION and control groups, respectively.
The prevalence of peripapillary superficial vessel protrusion was 88.9% in the eyes without retinal nerve fibre layer thinning.
Furthermore, the number of peripapillary superficial vessel protrusions in the superior quadrant was significantly higher than that in the other quadrants in eyes with non-arteritic anterior ischaemic optic neuropathy (NAION), consistent with the more damaged visual field defect regions.
Peripapillary wrinkles and visual field defects in two patients with NAION were significantly attenuated within 1 week and 1 month after the release of vitreous connections, respectively.
Peripapillary wrinkles and superficial vessel protrusion may be signs of papillary vitreous detachment-related traction in non-arteritic anterior ischaemic optic neuropathy (NAION).
British Journal of Ophthalmology, Li D, Sun S, Liang J, Papillary, vitreous, detachment, possible, accomplice, non-arteritic, anterior, ischaemic optic neuropathy. Papillary vitreous detachment may play an important role in NAION pathogenesis.
Reference:
Li D, Sun S, Liang J, et al.Papillary vitreous detachment as a possible accomplice in non-arteritic anterior ischaemic optic neuropathy. British Journal of Ophthalmology Published Online First: 13 April 2023.
doi: 10.1136/bjo-2022-322726
Dr. Shravani Dali has completed her BDS from Pravara institute of medical sciences, loni. Following which she extensively worked in the healthcare sector for 2+ years. She has been actively involved in writing blogs in field of health and wellness. Currently she is pursuing her Masters of public health-health administration from Tata institute of social sciences. She can be contacted at editorial@medicaldialogues.in.
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: editorial@medicaldialogues.in. Contact no. 011-43720751