Search results (103 results)

Sep 17 2012 by Michael P. Kelly, FOPS

Retinal fundus photograph of myelinated nerve fibers

Photographer: Michael P. Kelly, FOPS Director, Duke Eye Labs, Duke University Hospital, Duke Eye Center

Imaging device: Topcon

Condition/keywords: myelinated nerve fibers

Jun 17 2023 by Harsh Vardhan Singh, MS

Fundus photograph of 32-year-old male having good best corrected visual acuity in both eyes with right eye having high myopia & MNF as incidental finding

Photographer: Dr Harsh Vardhan Singh, Assistant Professor, AIIMS, Guwahati

Condition/keywords: medullated nerve fibers, MNF, myelinated nerve fiber layer, myelinated nerve fibers, Nerve fiber layer arrangements, NFL

Mar 12 2014 by Manish Nagpal, MD, FRCS (UK), FASRS

Fundus photo of a 56-year-old woman having myelinated nerve fibers with a atrophic macular hole.

Photographer: Pooja Barot

Condition/keywords: macular hole, myelinated nerve fibers

Nov 1 2018 by Kevin J. Blinder, MD, FASRS

Multi-color photo of macular pucker with myelinated nerve fiber layer.

Photographer: Jarrod Wehmeier

Imaging device: Heidelberg Spectralis

Condition/keywords: macular pucker

Sep 18 2019 by John S. King, MD

68-year-old African American male presented with an acute PVD in the fellow eye. Fellow eye had similar findings, but the pics were not as good as OD.

Photographer: Brittany Dewberry

Imaging device: Optos CA

Condition/keywords: myelinated nerve fiber layer, myelinated nerve fibers

May 2 2013 by Henry J. Kaplan, MD

Extensive myelinated nerve fibers.

Condition/keywords: myelinated nerve fibers

Apr 18 2025 by DR Rohit Gupta

The **myelinated nerve fibers of the optic disc** (also known as **medullated nerve fibers**) are retinal nerve fibers that retain their myelin sheath as they pass through the optic nerve head. Normally, retinal nerve fibers are unmyelinated to allow for light transparency, but in some cases, myelination extends anteriorly into the retina, appearing as a striking white, feathery patch on the optic disc or peripapillary retina. ### **Key Features:** 1. **Appearance:** - Dense, white, striated patches with feathery edges. - Typically located at the superior or inferior pole of the optic disc. - May obscure retinal vessels underneath. 2. **Clinical Significance:** - Usually **benign** and asymptomatic. - **Congenital** (present at birth or early childhood). - Rarely associated with **visual field defects** (e.g., scotomas corresponding to the area of myelination). - Occasionally linked with **high myopia** or **amblyopia** if extensive. 3. **Pathophysiology:** - Failure of oligodendrocytes or Schwann cells to stop myelination at the lamina cribrosa. - Normally, myelination stops at the optic nerve head, but in this condition, it extends into the retina. 4. **Diagnosis:** - **Fundoscopy:** Classic white, feathery appearance. - **Optical Coherence Tomography (OCT):** Shows thickened retinal nerve fiber layer (RNFL). - **Visual Field Testing:** May detect defects if large. 5. **Differential Diagnosis:** - Optic disc edema - Cotton wool spots - Retinoblastoma (rarely, but must be ruled out in children) 6. **Management:** - No treatment required if asymptomatic. - Monitor for amblyopia in children. - Rare cases with significant visual impairment may need further evaluation. ### **Fun Fact:** Myelinated nerve fibers are seen in **~0.5-1%** of the population and are usually an incidental finding.

Photographer: Dr Rohit gupta

Imaging device: Samsung S21

Condition/keywords: Medulated Nerve fibre, Medullated Nerve fibres, myelinated nerve fibers, Myelinated Nerve Fibres, optic disc drusen

Nov 5 2018 by Diva Kant Misra, MBBS, DO, DNB, MNAMS, FVRS

Bilateral montage funds photo images of a 56-year-old diabetic patient showing signs of NPDR along with myelinated nerve fibers.

Photographer: Hiteshwar Saikia

Condition/keywords: diabetes, hard exudates, myelinated nerve fibers, nonproliferative diabetic retinopathy

Nov 12 2019 by Aditya S Kelkar, MS, FRCS, FASRS,FRCOphth

Left eye fundus photograph of a 29-year-old male with extensive myelinated retinal nerve fibers appearing as grey white opaque lesions on the retina with feathery edges obscuring the retina.

Photographer: Dr. Vikrant Narwade

Condition/keywords: myelinated nerve fibers

Oct 5 2013 by Roy Schwartz, MD

Left eye of a 20-year-old female with myelinated nerve fibers.

Photographer: Galit Yair-Pur

Condition/keywords: fundus photograph, myelinated nerve fibers

May 4 2020 by SWATI INDURKHYA

Heidelberg HRA + OCT Spectralis Multicolor (30 degree) retinal image of the left eye of a 28-year-old male showing myelinated nerve fibre (MNF) with epiretinal membrane (ERM) and lamellar macular hole (LMH).

Photographer: Rakesh PR, Giridhar Eye Institute, Kerala, India

Imaging device: Heidelberg Spectralis HRA + OCT

Condition/keywords: epiretinal membrane (ERM), myelinated nerve fibers

Sep 11 2019 by Sophia El Hamichi, MD

A 36-year-old male with supratemporal juxta papillary choroidal osteoma associated with myelinated nerve fibers of the left eye.

Photographer: Sophia El Hamichi, MD, Murray Ocular Oncology and Retina

Imaging device: Optos

Condition/keywords: choroidal osteoma, myelinated nerve fibers, Optos

Oct 5 2013 by Roy Schwartz, MD

Left eye of a 20-year-old female with myelinated nerve fibers

Photographer: Galit Yair-Pur

Condition/keywords: myelinated nerve fibers, optical coherence tomography (OCT)

Sep 17 2012 by Michael P. Kelly, FOPS

Retinal fundus photograph of a macular hole.

Photographer: Michael P. Kelly, FOPS Director, Duke Eye Labs, Duke University Hospital, Duke Eye Center

Imaging device: Topcon

Condition/keywords: macular hole, myelinated nerve fibers

Feb 12 2015 by Timothy S Fuller, MD

Fundus photograph of a 20-year-old woman with myelinated nerve fibers.

Photographer: Nick Hesse, Texas Retina Associates

Condition/keywords: myelinated nerve fibers

Jan 11 2013 by Alex P. Hunyor, MD

Myelinated nerve fibres at optic disc, left eye.

Condition/keywords: myelinated nerve fibers

Jan 26 2020 by Prithvi Chandrakanth

Incidental fundus finding in an asymptomatic 37-year-old female of grayish white , well demarcated patch, with frayed borders obscuring underlying vessels at the optic nerve head in both eyes.

Photographer: Dr.PRITHVI CHANDRAKANTH, ARAVIND EYE HOSPITAL, UDUMALPET

Imaging device: TRASH TO TREASURE RETCAM

Condition/keywords: myelinated nerve fibers, retcam, smartphone fundus photography

Apr 3 2018 by Mitzy E Torres Soriano, MD

Myelinated nerve fiber layer, left eye.

Photographer: Mitzy Torres Soriano

Condition/keywords: myelinated nerve fiber layer, myelinated nerve fibers

Oct 22 2012 by Ronald C. Gentile, MD

A magnified fundus photo of the myelinated retinal nerve fibers showing the retinal vascular abnormalities with multiple aneurysmal dilations.

Photographer: The New York Eye & Ear Infirmary Department of Medical Imaging

Condition/keywords: myelinated nerve fibers, retinal telangiectasia

Sep 3 2013 by Howard Schatz, MD

Myelinated nerve fibers, AO, BAO.

Condition/keywords: AO, myelinated nerve fibers

Jan 9 2014 by David Callanan, MD

ARMD RPE defect , myelinated nerve fiber layer in a 47-year-old male patient.

Condition/keywords: myelinated nerve fiber layer, retinal pigment epithelium (RPE) defect

Jan 9 2014 by David Callanan, MD

ARMD RPE defect , myelinated nerve fiber layer in a 47-year-old male patient.

Condition/keywords: myelinated nerve fiber layer, retinal pigment epithelium (RPE) defect

Jan 9 2014 by David Callanan, MD

ARMD RPE defect , myelinated nerve fiber layer in a 47-year-old male patient.

Condition/keywords: myelinated nerve fiber layer, retinal pigment epithelium (RPE) defect

Jan 9 2014 by David Callanan, MD

ARMD RPE defect , myelinated nerve fiber layer in a 47-year-old male patient.

Condition/keywords: myelinated nerve fiber layer, retinal pigment epithelium (RPE) defect

Jan 9 2014 by David Callanan, MD

ARMD RPE defect , myelinated nerve fiber layer in a 47-year-old male patient.

Condition/keywords: myelinated nerve fiber layer, retinal pigment epithelium (RPE) defect