Could you please provide more details or specify your question?
Hello, Doctor Gao: The dark shadow I mentioned earlier does not move; it resembles a small, faint, round dark shadow that appears wherever I look.
The edges of my vision are darker, while looking straight ahead, it is lighter or almost invisible (I can see some shadows when I squint hard).
I also have floaters, and this new shadow seems somewhat different from the floaters.
After researching, it appears to resemble symptoms of macular degeneration, which makes me concerned about potential issues with the macula.
I had a retinal examination at the clinic on May 22, and the doctor mentioned that it might be caused by vitreous degeneration.
Can vitreous degeneration cause similar symptoms? If there are early or mild issues with the macula, can they be missed during a retinal examination, or do they require specialized equipment to detect? I am considering whether to see a doctor again.
Thank you for your thoughtful answers!
Ms. Huang, 30~39 year old female. Ask Date: 2015/05/26
Dr. Gao Pilin reply Ophthalmology
Hello Miss Huang: If the black spots are completely still, it may be a cause for concern.
However, if there is slight movement and they follow your line of sight, it is likely due to vitreous degeneration.
The symptoms of floaters can vary depending on the degree of vitreous liquefaction.
A convenient and quick method for self-checking for macular degeneration can be found here: http://health99.hpa.gov.tw/OnlinkHealth/Quiz_AmslerGrid.aspx.
If you are still worried, please visit a medical center such as National Taiwan University Hospital, Veterans General Hospital, or Chang Gung Memorial Hospital, and consult a retinal specialist for a more detailed examination.
The ophthalmology department at Puzih Hospital in Taiwan is open Monday to Friday from 8:00 AM to 12:00 PM and Wednesday afternoons from 1:00 PM to 4:30 PM.
I hope to have the opportunity to serve you.
Gao Pi-Lin
Reply Date: 2015/05/26
More Info
Understanding the distinction between vitreous degeneration and macular issues is crucial for diagnosing and managing visual symptoms effectively. The symptoms you describe, particularly the presence of fixed dark spots in your vision, can indeed be associated with both vitreous degeneration and macular conditions, but they manifest differently.
Vitreous Degeneration: This condition involves changes in the vitreous gel, which fills the eye. As we age, the vitreous can become more liquid and may pull away from the retina, leading to symptoms such as floaters (which you mentioned as "flying mosquitoes") and, in some cases, flashes of light. The fixed dark spots you describe could be due to the vitreous gel casting shadows on the retina, especially if there are areas of condensation or clumping within the vitreous. This is often benign and a common occurrence in individuals, particularly those with myopia (nearsightedness).
Macular Issues: The macula is the central part of the retina responsible for sharp, detailed vision. Conditions affecting the macula, such as macular degeneration or macular holes, can lead to symptoms like blurred or distorted central vision, dark spots, or shadows in the central visual field. If the macula is compromised, it can lead to significant visual impairment, and early detection is vital for management.
Regarding your concern about whether retinal examinations can detect early macular issues, it is important to note that while a standard retinal examination can reveal many conditions, some early changes may not be visible without specialized imaging techniques. Optical coherence tomography (OCT) is a non-invasive imaging test that provides cross-sectional images of the retina, allowing for the detection of subtle changes in the macula that may not be apparent during a routine exam. If your symptoms persist or worsen, it would be prudent to seek further evaluation, possibly including OCT, to rule out any underlying macular pathology.
In summary, vitreous degeneration can indeed cause symptoms similar to what you are experiencing, but it is essential to differentiate this from potential macular issues, especially given your history of floaters and the nature of your current symptoms. If you have concerns about your vision, particularly if you notice changes or worsening symptoms, it is advisable to consult with an eye care professional who can perform a comprehensive examination and recommend appropriate imaging if necessary. Early intervention can be key in managing any potential issues effectively.
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