HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

question-icon

What Do Black Spots In Vision Indicate?

default
Posted on Mon, 9 Feb 2015
Question: When I wake in the night in very dim light about 20 % of my vision is blocked by black spots some large areas some small areas but as light gets better the spotsw disappear what might be the problem and should I worry about it?
doctor
Answered by Dr. Muhammad Ahmad (3 hours later)
Brief Answer:
I would like you to answer a few questions.

Detailed Answer:
Hi,

Thanks for writing to health care magic.

I am Dr .Muhammad Ahmad, I have read you question and will like you to answer my queries for my better understanding so that i can come up with a helping answer.


1- Since when is this happening.

2- How does you BP stay?

3- Hows your eye site?

4- Do you drink or any other addiction?

5- Have you contacted any doctor before?

6- What are your eating habits? Are you taking balanced diet with fruits..vegetables and all?

7- Does it just happen when you wake up or it alwyas happens in night or dark wether you are awake or sleeping?

8- Does it get better with better light or even if there is low light still it gets better with time after waking up?

I am waiting for your input.
Above answer was peer-reviewed by : Dr. Vinay Bhardwaj
doctor
default
Follow up: Dr. Muhammad Ahmad (4 hours later)
I noticed it about 2 years ago....rather normal BP around75/130...war glasses and corrected to 25/25 - 2 surgeries to implants both doing well ...I take 1 or 2 drinks a day no other addictions.....it happens ONLY in darknes(dim of course otherwise I couldn't see it) so only at night when I wake up, altho I have had it happen during the daytime in a darkened room (Like when I was getting a massage) it actually disappears as light come up and then I have no problem
doctor
Answered by Dr. Muhammad Ahmad (11 hours later)
Brief Answer:
Brain involvement less likely.

Detailed Answer:
Hello,

Welcome to Health Care Magic.
My name is Dr Muhammad Ahmad & I will look into your problem.

I have gone through your query and would try to help you in the best possible way.

1 - Retinitis pigmentosa:
Retinitis pigmentosa (commonly referred to as "RP") is a disease characterized by loss of the light sensing photoreceptor cells that line the back of the eye, like the film of a camera. Usually the rod photoreceptors (responsible for night vision) are affected first, which is why loss of night vision (nyctalopia) is usually the first symptom. Daytime vision (mediated by the cone photoreceptors) is usually preserved until the late stages of the disease. Mottling of the retinal pigment epithelium with black bone-spicule pigmentation is typically indicative (or pathognomonic) of retinitis pigmentosa. Other ocular features include waxy pallor of the optic nerve head, attenuation (thinning) of the retinal vessels, cellophane maculopathy, cystic macular edema, and posterior subcapsular cataract.


2 - Retinal detachment:

Not likely in your case.

3-Certain medications, such as phenothiazines.

4-Pathological myopia.

6-Cataract:
This doesn't seem to be your case as your optician cleared you plus cataract also causes issues in day time.

7-Vitamin A deficiency:
Rods contain a pigment called rhodopsin. When light falls on rhodopsin, it undergoes a series of conformational changes ultimately generating electrical signals which are carried to the brain via the optic nerve. In the absence of light, rhodopsin is regenerated. The body synthesizes rhodopsin from vitamin A, which is why a deficiency in vitamin A causes poor night vision.

My opinion:

Brain usually doesn't present with eyes site issues at night alone it usually presents with permanent symptoms.

I would suggest you to consider increasing intake of vitamin A, as a vitamin cocktail in multi vitamins or taking foods high in vitamin A like carrots, sweet potatoes, liver, fish.

You can also take a second opinion or discuss other possible causes with your doctor retinitis pigmentosa can be a cause, usually it involves rods first so night vision is effected first.

Hope I have answered your query. If you have any further questions, I will be happy to help if not then don't forget to close the discussion and rate it.

Wishing you good health !!
Above answer was peer-reviewed by : Dr. Ashwin Bhandari
doctor
Answered by
Dr.
Dr. Muhammad Ahmad

General & Family Physician

Practicing since :2012

Answered : 1308 Questions

premium_optimized

The User accepted the expert's answer

Share on

Get personalised answers from verified doctor in minutes across 80+ specialties

159 Doctors Online

By proceeding, I accept the Terms and Conditions

HCM Blog Instant Access to Doctors
HCM Blog Questions Answered
HCM Blog Satisfaction
What Do Black Spots In Vision Indicate?

Brief Answer: I would like you to answer a few questions. Detailed Answer: Hi, Thanks for writing to health care magic. I am Dr .Muhammad Ahmad, I have read you question and will like you to answer my queries for my better understanding so that i can come up with a helping answer. 1- Since when is this happening. 2- How does you BP stay? 3- Hows your eye site? 4- Do you drink or any other addiction? 5- Have you contacted any doctor before? 6- What are your eating habits? Are you taking balanced diet with fruits..vegetables and all? 7- Does it just happen when you wake up or it alwyas happens in night or dark wether you are awake or sleeping? 8- Does it get better with better light or even if there is low light still it gets better with time after waking up? I am waiting for your input.