How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Dr Dansingani Your Own Question

Dr Dansingani
Dr Dansingani, Ophthalmic Surgeon
Category: Eye
Satisfied Customers: 15
Experience:  BA, MA (Cambridge) MB,BS (London) FRCOphth (London)
Type Your Eye Question Here...
Dr Dansingani is online now
A new question is answered every 9 seconds

i have flashing lights in my eyes, what could this be

Resolved Question:

i have flashing lights in my eyes, what could this be
Submitted: 4 years ago.
Category: Eye
Expert:  Dr Dansingani replied 4 years ago.
Dear Denise,

There are a handful of conditions that can cause flashings lights. They include:

  • posterior vitreous separaction
  • migraine
  • inflammatory conditions of the optic nerve or retina

The first two are the ones we most frequently encounter in our day to day clinics.

Posterior vitreous separation is a phenomen that occurs in most people sooner or later. It involved a spontaneous separation of the vitreous from the retina at the back of the eye (the vitreous is the gelatinous substance that occupies most of the volume of the eyeball). As the vitreous separated form the retina it can exter tractional forces on the retina that the brain interprets as flashes of light.

Occasionally, during vitreous separation, the retina can get traumatised and can bleed or tear. A tear or break in the retina can often be contained by laser treatment to the retina. Sometimes a tear can lead to retinal detachment which can be sight-threatening and which can require surgery.

Ocular migraine is a phenomenon in which patients can experience lightening streaks in the periphery of the vision. These are thought to be related to aberrations in blood flow in the retina, caused by temporary tightening of small blood vessels. While this causes headache in classical migraine, if it happens in the retina, the brain interprets these stimuli as flashes of light.

Posterior vitreous separation is unlikely to occur in both eyes at exactly the same time, while ocular migraine can certainly do so.

I you think your problem is in line with posterior vitreous separation, it would be worth having your retina examined by an ophthalmologist to ensure there are no tears in the retina. It would also be worth seeking attention if you have any recent visual deterioration.

I hope the information is helpful. If so, kindly click the 'accept' link.
Best wishes.
Dr Dansingani, Ophthalmic Surgeon
Category: Eye
Satisfied Customers: 15
Experience: BA, MA (Cambridge) MB,BS (London) FRCOphth (London)
Dr Dansingani and other Eye Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I feel so much better today, and upon further investigation believe that there is a chance that the responses I got saved me from a serious, even life threatening situation. I am very grateful to the experts who answered me. Susan O. USA
< Last | Next >
  • I feel so much better today, and upon further investigation believe that there is a chance that the responses I got saved me from a serious, even life threatening situation. I am very grateful to the experts who answered me. Susan O. USA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Dr. Dan B.

    Board Certified Ophthalmologist

    Satisfied Customers:

    2903
    Eye surgeon experienced in cataracts, glaucoma, retina & neuro-ophthalmology
< Last | Next >
  • http://ww2.justanswer.com/uploads/DoctorDanB/2010-6-7_6228_just_answer_profile_picture_60_pixels.jpg Dr. Dan B.'s Avatar

    Dr. Dan B.

    Board Certified Ophthalmologist

    Satisfied Customers:

    2903
    Eye surgeon experienced in cataracts, glaucoma, retina & neuro-ophthalmology
  • http://ww2.justanswer.com/uploads/anupamadesai/2010-04-13_122313_Dr._A.S.Desai_new_photo.jpg Dr. A.S. Desai's Avatar

    Dr. A.S. Desai

    Ophthalmologist

    Satisfied Customers:

    1903
    MS Ophthalmology with 11 years of surgical expereince
  • http://ww2.justanswer.com/uploads/gsokoye/2009-10-28_181751_Dr._Stan.JPG Dr. Stan's Avatar

    Dr. Stan

    Ophthalmologist

    Satisfied Customers:

    895
    Johns Hopkins Fellowship Trained, Certified and Licensed Medical Physician and Surgeon
  • http://ww2.justanswer.com/uploads/eyemd/2009-04-07_180315_pic.jpg Dr. Stevens's Avatar

    Dr. Stevens

    Ophthalmologist

    Satisfied Customers:

    629
    Board Certified Ophthalmologist
  • http://ww2.justanswer.com/uploads/CO/CorneaDoc/2012-2-18_0390_photo6.64x64.jpg Dr. Susan's Avatar

    Dr. Susan

    Ophthalmologist

    Satisfied Customers:

    217
    Board Certified & Fellowship trained eye surgeon.
  • http://ww2.justanswer.com/uploads/neuph94/2009-10-11_164729_gif_pic.GIF Dr. JP's Avatar

    Dr. JP

    Ophthalmology, Oculoplastic Surgery

    Satisfied Customers:

    28
    Harvard Medical School, Massachussetts Eye and Ear
  • http://ww2.justanswer.com/uploads/JA/JACUSTOMERjcufyksv/2012-3-13_44825_crop3.64x64.jpg Dr-Trace's Avatar

    Dr-Trace

    Board Certified Ophthalmologist

    Satisfied Customers:

    26
    Board Certified in General Ophthalmology
 
 
 

Related Eye Questions