scholarly journals Imaging signatures in optic nerve head melanocytoma

2021 ◽  
Vol 7 (2) ◽  
pp. 222-224
Author(s):  
Dhaivat Shah ◽  
Rinal Pandit
Keyword(s):  
Optic Nerve ◽  
Visual Field ◽  
Malignant Transformation ◽  
Optic Nerve Head ◽  
Pigmented Lesion ◽  
Characteristic Imaging ◽  
Field Disturbance

Optic nerve head melanocytoma is a benign pigmented lesion which is generally asymptomatic, however it can sometimes be related with visual field disturbance. In most cases the tumor stays stable for the duration of the life. Rarely 1-2% of such cases undergo a malignant transformation, hence serial monitoring is necessary. We report an instance of optic nerve head melanocytoma in a 30-year-old male with characteristic imaging signatures.

Predictive Factors of the Optic Nerve Head for Development or Progression of Glaucomatous Visual Field Loss

2004 ◽  
Vol 45 (8) ◽  
pp. 2613 ◽  
Author(s):  
Jost B. Jonas ◽  
Peter Martus ◽  
Folkert K. Horn ◽  
Anselm Ju¨nemann ◽  
Mathias Korth ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Visual Field ◽  
Predictive Factors ◽  
Optic Nerve Head ◽  
Visual Field Loss

Flowmetry of optic nerve head and visual field defect in glaucomatous eyes

1999 ◽  
Vol 77 (S229) ◽  
pp. 40-41
Author(s):  
L. Mastropasqua ◽  
M. Ciancaglini ◽  
P. Carpineto ◽  
G. Falconio ◽  
E. Zuppardi ◽  
...  
Keyword(s):  
Optic Nerve ◽  
Visual Field ◽  
Optic Nerve Head ◽  
Visual Field Defect ◽  
Field Defect

Influence of Nifedipine on the Visual Fields of Patients with Optic-Nerve-Head Diseases

1994 ◽  
Vol 4 (1) ◽  
pp. 24-28 ◽  
Author(s):  
A.Z. Gaspar ◽  
J. Flammer ◽  
PH. Hendrickson
Keyword(s):  
Optic Nerve ◽  
Visual Field ◽  
Calcium Channel ◽  
Calcium Channel Blocker ◽  
Optic Nerve Head ◽  
Channel Blocker ◽  
Glaucoma Patient ◽  
Visual Fields ◽  
Visual Field Defects ◽  
Channel Blockers

Calcium-channel blockers have long been employed in coronary disease, and recent investigations have indicated their efficacy in improving the visual field in low-tension glaucoma or presumed vasospasm, possibly by enhancing ocular circulation. We evaluated the short-term influence of a typical calcium-channel blocker, nifedipine, on 59 patients with visual-field defects, some with optic-nerve-head pathology (n = 38) and some with normal-appearing optic nerve heads (n = 21). On the average, a statistically significant improvement of 1.2 dB was observed. Different types of patients, however, behaved quite differently. The younger the patient, the greater the improvement. Patients with normal optic nerve heads improved by 1.54 dB, whereas patients with optic-nerve-head excavation improved by only 0.66 dB. No response was observed in patients with anterior ischemic neuropathy. Marked deterioration was noted in one glaucoma patient with low systemic blood pressure. The visual-field changes were observed in the scotomatous and non-scotomatous areas. Thus, the calcium-channel blocker nifedipine can be effective in some selected diseases whose pathogenesis probably involves vascular dysregulation though it may even be contraindicated in others

scholarly journals Vertical disc tilt and features of the optic nerve head anatomy are related to visual field defect in myopic eyes

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hae-Young Lopilly Park ◽  
Yong Chan Kim ◽  
Younhea Jung ◽  
Chan Kee Park
Keyword(s):  
Optic Nerve ◽  
Visual Field ◽  
Optic Nerve Head ◽  
Visual Field Defect ◽  
Field Defect
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