A total of consecutive patients diagnosed as unilateral or bilateral non-acute non-arteritic anterior ischemic optic neuropathy by neuro-ophthalmologist in Songklanagarind Hospital Non-arteritic anterior ischemic optic neuropathy Macula vascular density optical coherence tomography angiography
Conditions
Interventions
A total of consecutive patients diagnosed as unilateral non-
arteritic anterior ischemic optic neuropathy by neuro-
ophthalmologist in Songklanagarind Hospital between January 2015 through December 2020 were evaluated in the study.
Basic Science
Nonarteritic anterior ischemic optic neuropathy group
Sponsors
Prince of Songkla University
Eligibility
Sex/Gender
All
Age
20 Years to 80 Years
Inclusion criteria
Inclusion criteria: (1) History of a sudden onset of painless vision loss (2) VF defect confined to only one hemifield consistent with NAION (3) Optic disc edema at onset that was confirmed by at least one neuro-ophthalmology expert (4) no evidence of other ocular diseases such as glaucoma, arteritic anterior ischemic optic neuropathy, optic neuritis, or coexisting retinal pathologies that may cause the visual symptoms or affected retinal and choroidal vascular. (5) resolution of the initial optic disc and retinal edema at least 3 month after acute optic disc swelling.
Exclusion criteria
Exclusion criteria: (1) Patients age younger than 20 years or older than 80 years (2) previous intraocular surgery (3) Patients with poor image quality including images with poor clarity, motion artifact, and scans with signal strength index of <40 were excluded. (4)Patients with unreliable visual field e.g. fixation losses and false-positive and false-negative results more than 33% were excluded. (5)Refractive error greater than +3.0 diopters (D) or less than - 6.0 D (6)Refractive error greater than 5.0 D of spherical equivalent or 3.0 D of astigmatism.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| percentage of the macular superficial vessel density (SVD) After patient complete the measurements optical coherence tomography angiography (OCTA) | — |
Secondary
| Measure | Time frame |
|---|---|
| percentage of the peripalillary capillary density(PCD) After patient complete the measurements optical coherence tomography angiography (OCTA) | — |
Countries
Thailand
Contacts
Public ContactJuthamat Witthayaweerasak
Prince of Songkla University, Ophthalmology department
Outcome results
None listed