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I can see black lines in one of my eyes What could be causing this

A 38-year-old member asked:
Dr. Michael Davis
Sleep Medicine 39 years experience
These are floaters: There are many things that can cause black lines or "floaters" in your vision. It could simply be the natural gel in the eye (vitreous), but it could... Read More
Dr. Robert Chang
Specializes in Ophthalmology
Vitreous syneresis: If the lines are moving when the eye moves, then likely they are vitreous floaters or debris. Otherwise a fixed black line could signify a retinal pr... Read More

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A 39-year-old member asked:
Dr. Jan Lei Iwata
Ophthalmology 26 years experience
Can be many causes: It would represent an emergency especially if it's from a retinal detachment, central retinal vein occlusion, central retinal artery occlusion, and mu... Read More
A 59-year-old female asked:
Dr. David Chandler
Ophthalmology 33 years experience
Many causes: You need to have this checked because there are many possible causes of this. A new floater is a common cause, but the floater would tend to move arou... Read More
A 53-year-old female asked:
Dr. Matthew Goren
Ophthalmology 32 years experience
See an eye doc: Floaters are usually just vitreous jelly liquifying and floating around inside your eye. However, you need an exam to rule-out more serious causes li... Read More
A 29-year-old female asked:
Dr. Gurmukh Singh
Pathology 49 years experience
Nothing serious: Jerking of various muscles when falling asleep is common and harmless. The cause is not clear. Have a healthy diet, exercise 30 minutes/day, drink ple... Read More
A 19-year-old female asked:
Dr. Solomon Gelbart
A Verified Doctoranswered
A US doctor answeredLearn more
Possible migraine: If you are seeing these spots and sparks in a pattern and for some defined period of time (15-30 min) this could be due to migraine visual phenomena. ... Read More
A 28-year-old female asked:
Dr. Forrest Jones
Specializes in Family Medicine
Get checked: This sounds like floaters which tend to be benign. But if it is a new change, especially if there are visual changes, then do get checked by optometri... Read More
A 19-year-old male asked:
Dr. Alan Jackson
Addiction Medicine 30 years experience
Does double vision: Remain when on eye is closed? If so the either an astigmatism or surface eye dryness can be the cause. If the double vision goes away when one eye. I... Read More
A 23-year-old female asked:
Dr. Jeffrey Whitman
Ophthalmology 45 years experience
In : In this case it makes sense to see an ophthalmologist who is an md and is trained in both the medical and surgical treatment of eye diseases. In your... Read More
A 33-year-old female asked:
Dr. David Boyer
Ophthalmology 49 years experience
Ophthalmic migraine: Ophthalmic migraine is a condition where lights or irregular shapes occur lasting from 10 minutes to several hours. The vision may be obscured during ... Read More

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

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