Dark Shadows in One Eye: Possible Causes and Next Steps

Q: Dark Shadows in One Eye: Possible Causes and Next Steps

Hello： Based on the symptoms you described, the uneven light perception in your left eye and the irregular circular shape resembling an afterimage from looking at a bright light may indicate an issue related to eye health. <br>Floaters are typically caused by the liquefaction of

The left eye feels darker, with a shadow in a specific area?

In recent days, I have noticed an imbalance in the light perception between my two eyes.
Upon comparison, I found that my left eye perceives light as darker, and there seems to be an irregular circular shadow in the center, similar to an afterimage from looking at a bright light, which remains fixed.
Yesterday, I underwent a fundus examination, and the doctor mentioned seeing floaters, but currently, there are no issues with my retina.
However, regarding my concerns, he suggested that I should have a further fundus scan, which requires an appointment in two weeks.
I would like to ask Dr.
Gao:
1.
Could my symptoms be solely due to floaters? What other conditions could it be, such as macular folds?
2.
Are there any potentially serious issues that I should be immediately aware of, and what actions should I avoid? Do I need to see another doctor for a second opinion?
3.
What is the typical treatment for such conditions?
P.S.
Two years ago, I experienced black spots and flashes in the corner of my eye.
After consulting a doctor, I was told there were no issues with my retina, and eventually, the flashes disappeared, leaving only drifting black spots.
However, the recent shadow appears more fixed in the central position and does not drift much.
Thank you, Dr.
Gao!

Kunrao de ren, 30~39 year old female. Ask Date: 2024/04/21

Dr. Gao Pilin reply Ophthalmology

Hello: Based on the symptoms you described, the uneven light perception in your left eye and the irregular circular shape resembling an afterimage from looking at a bright light may indicate an issue related to eye health.
Floaters are typically caused by the liquefaction of the vitreous body, resulting in drifting spots or lines in the visual field.
However, fixed dark spots or shadows in the visual field may be associated with other ocular conditions.
Here are some potential conditions and recommendations:
1.
Macular Issues: Your symptoms may be related to the macula, such as a macular hole or macular folds, which can lead to dark spots or distortion in the central vision.

2.
Retinal Problems: Retinal issues may cause shadows or uneven light perception in the visual field, such as retinal detachment, tears, or other retinal diseases.
3.
Situations to Monitor: If you notice an increase in the size of the shadows, an increase in flashes, a sudden decline in vision, or the emergence of other new symptoms, this may constitute an emergency, and you should seek immediate medical attention.
4.
Recommended Actions: Avoid vigorous exercise, heavy lifting, and sudden head movements to prevent exacerbating eye problems.
5.
Need for a Second Opinion: If you feel uncertain or dissatisfied with your current physician's diagnosis and recommendations, you may seek a second opinion to ensure that your diagnosis and treatment are accurate and appropriate.
6.
Treatment: Specific treatment will depend on the diagnosis.
For example, macular issues may require surgery, while retinal problems may necessitate laser treatment or other surgical interventions.
It is advisable to closely monitor your symptoms before further examination.
If symptoms suddenly worsen, please seek immediate medical attention.

Reply Date: 2024/04/21

More Info

Understanding dark shadows or spots in one eye can be concerning, especially when accompanied by other visual disturbances. Based on your description, it seems you are experiencing a combination of symptoms that may be related to several ocular conditions, including floaters, potential retinal issues, or even changes in the vitreous gel of the eye.

1. Possible Causes: The presence of dark shadows or spots, particularly if they are fixed in the central vision, could suggest several possibilities. While floaters are common and often benign, they can sometimes indicate more serious conditions, especially if they change in nature or if new symptoms arise. The fact that you have previously experienced flashes of light and have a history of seeing black spots raises some concerns. Conditions such as a retinal tear, detachment, or even macular degeneration could be considered, especially if there is a change in your visual field or if the shadows are persistent.

The irregular circular shadow you describe could potentially be related to the vitreous gel pulling away from the retina, which is a common occurrence as we age. However, if the shadow is new and accompanied by other symptoms, it is essential to investigate further. The mention of a possible macular pucker (wrinkling of the macula) is also valid, as this can lead to visual distortions and shadows.

2. When to Seek Immediate Attention: While floaters are often harmless, you should be vigilant for any changes in your vision. If you experience an increase in the number of floaters, a sudden onset of flashes of light, or a curtain-like shadow over your vision, you should seek immediate medical attention. These symptoms could indicate a retinal detachment, which is a medical emergency. Additionally, if you notice any significant changes in your visual acuity or if the shadows become more pronounced, it would be wise to consult with an eye specialist sooner than your scheduled appointment.

Avoid activities that could strain your eyes, such as prolonged screen time or reading in poor lighting, until you have a clearer understanding of your condition. It’s also advisable to refrain from any activities that could increase the risk of injury to your eyes, such as contact sports.

3. Next Steps and Treatment Options: Given your symptoms and the findings from your recent eye examination, it is prudent to follow through with the recommended eye scan. This will provide a more comprehensive view of the retina and vitreous and help rule out any serious conditions. Depending on the results, treatment options can vary. If the issue is related to floaters, many doctors recommend a wait-and-see approach, as most floaters become less bothersome over time. However, if a significant retinal issue is found, treatments may include laser therapy or surgical intervention, depending on the severity and nature of the problem.

In conclusion, while your symptoms may be related to benign floaters, the presence of fixed shadows and your history of visual disturbances warrant careful monitoring and further investigation. It is essential to maintain open communication with your eye care provider and report any new symptoms promptly. Regular follow-ups and possibly seeking a second opinion if you feel uncertain about your diagnosis can also provide peace of mind and ensure that any potential issues are addressed in a timely manner. Your vision is invaluable, and taking proactive steps is crucial for maintaining eye health.

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