Optic Nerve Abnormalities: Symptoms and Next Steps - Ophthalmology

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Optic nerve abnormalities


Hello Doctor: I have approximately -7.50 diopters of myopia in both eyes.
Recently, when I close my eyes in a dark place and then open them, I see a black shadow in the center that lasts for 2 to 3 seconds before disappearing.
When reading a line of text, I feel like it is constantly shifting up or down, and the letters in the middle appear slightly distorted, although I can't quite pinpoint it.
This is more pronounced when I am fatigued.
Last week, I went to the hospital for an OCT examination, and the doctor mentioned that my optic nerve looked unusual, scheduling a visual field test for the end of the month.
I would like to ask if waiting until the end of the month for the examination is too long, or if I should make an earlier appointment.
I am concerned that my optic nerve might deteriorate further.
Additionally, I have noticed that my hands tremble involuntarily when using chopsticks or my phone.
Could this be related to optic nerve pathology, and should I see a neurologist? Thank you, Doctor.

Mr. Li, 20~29 year old female. Ask Date: 2020/04/10

Dr. Gao Pilin reply Ophthalmology


Hello Mr.
Li: There may not be an urgent need for a visual nerve examination, but it would be advisable to first consult a neurologist regarding your hand tremors, as they could potentially be related to an eye issue.
The ophthalmology department at Puzi Hospital in Taiwan is available on Monday, Tuesday, Thursday, and Friday mornings from 8:00 AM to 12:00 PM, and on Wednesday afternoons from 2:00 PM to 4:30 PM.
Please note that online responses are for reference only, and it is essential to seek care at a medical facility if necessary.
I hope to have the opportunity to assist you.
Gao Pi-Lin

Reply Date: 2020/04/10

More Info


Hello! Thank you for reaching out with your concerns regarding your vision and the symptoms you are experiencing. Based on the information you've provided, it sounds like you are dealing with a complex situation involving potential optic nerve abnormalities, and I understand your anxiety about the possibility of deterioration.

Firstly, the symptoms you describe—seeing black shadows when opening your eyes in the dark, experiencing distortion in the letters while reading, and noticing tremors in your hands—are indeed concerning and warrant further evaluation. The presence of black shadows (often referred to as "floaters" or "scotomas") can indicate issues with the retina or optic nerve, while the distortion of letters could suggest problems with visual processing or the integrity of the optic nerve itself.

The OCT (Optical Coherence Tomography) test you underwent is a valuable tool for assessing the health of the optic nerve and the retina. If your doctor mentioned that your optic nerve appears "strange," it suggests that there may be some abnormalities that need to be monitored closely. The upcoming visual field test is crucial, as it will help determine if there are any significant defects in your peripheral vision, which can be indicative of optic nerve damage or other neurological issues.

Regarding your concern about waiting until the end of the month for the visual field test, it is understandable to feel anxious about potential deterioration. If you notice any worsening of your symptoms—such as increased frequency or intensity of the black shadows, significant changes in your vision, or new symptoms like severe headaches or nausea—it would be prudent to seek an earlier appointment with your ophthalmologist or a neurologist. They can provide a more immediate assessment and determine if any urgent intervention is necessary.

As for the hand tremors you mentioned, while they may not be directly related to optic nerve issues, they could indicate a neurological condition that warrants further investigation. Tremors can arise from various causes, including stress, fatigue, or neurological disorders. Consulting with a neurologist would be a wise step to rule out any underlying conditions that could be contributing to both your visual symptoms and the tremors.

In summary, while it is important to follow through with the scheduled visual field test, do not hesitate to seek earlier medical attention if your symptoms worsen or if you have any new concerns. Your health and peace of mind are paramount, and early intervention can often lead to better outcomes. Additionally, maintaining regular follow-ups with both your ophthalmologist and a neurologist will ensure that all aspects of your symptoms are being addressed comprehensively.

Please take care of yourself, and I hope you find the answers and relief you need soon. If you have any further questions or concerns, feel free to reach out.

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