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What Causes Partial Vision On Left Eye Occasionally?

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Posted on Thu, 30 Jun 2016
Question: Some times I loose partial vision in my right eye. Part of my vison sort of greys over. It only last a short ime. sometime it in the lower part of the eye and sometimes the upper part
doctor
Answered by Dr. Muhammad Hanif (7 hours later)
Brief Answer:
Ophthalmologist consultation is the best next step !

Detailed Answer:
Welcome to HCM and thanks for the consult. I have carefully reviewed you health concerns and can well realize sensitivity of issues you have.


Such kind of partial loss of vision that's reversible and lasts for short duration may be related to serious eye abnormality that needs corrected.


Some patients are diabetic and long lasting Diabetes Mellitus causes the lens to get destroyed in many ways. There is excess glucose in blood and it forms a compound named Sorbitol that is accumulated in eye and haziness of lens is an issue. Diabetes may also cause damage to the blood vessels in eye. Optic nerve is also damaged and may lead to vision issues.

Other causes include :
Hypertension causing a damage to lens, ciliary muscles (the ones holding the lens in place), optic nerve (the nerve in eye that is center piece in the visual pathways).

Senile changes also may cause damage to lens, blood vessels or the nerves.

Intraocular Pressure (IOP) changes also may cause issues of vision.

Best next step practically is:
A thorough evaluation by an Ophthalmologist who is the trained personnel to treat such cases after diagnosis. Diagnosis will be based on Physical examination and a battery of tests on your eyes.

Management goes accordingly. Early eye changes can be manipulated via Laser treatments. More advanced cases may need Intraoccular lens implantation through surgery if there is involvement of lens only with normal Optic nerve.

Hope it helps. please feel free to contact back for further assistance if needed. I will be happy to reply in no time.

Regards!
Above answer was peer-reviewed by : Dr. Arnab Banerjee
doctor
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Follow up: Dr. Muhammad Hanif (18 minutes later)
Thank you. I am not diabetic nor do I have high blood pressure. I had hear surgery five years ago to replace aortic valve (tissue) and one by pass to the artery describes as the widow maker. I am in a active exerciseclass 3 days a week and water exercise two or three days a week
doctor
Answered by Dr. Muhammad Hanif (50 minutes later)
Brief Answer:
Further probing is mandatory!

Detailed Answer:
Welcome back with a follow up query and providing me details to help assess your case in a better way.

Fortunately such kind of transient visual loss has many a times identifiable cause behind it and we can trace that to treat.

These episodes in the absence of diabetes and hypertension (as you described) seem more likely to be due to Transient lack of blood supply (ischemia) to the eye vessels. No blood no vision transiently. It's like no electricity-no light


In the light of your lifestyle and past medical history I doubt it is your heart that may be causing the issues. Many patients like you get Thrombi or Emboli originated from heart and lodging in the blood vessels supplying eyes.

Sometimes Ischemia to brain areas disrupting Visual pathways in the center cause such symptoms but they are more bilateral issues not in a single eye.

Giant Cell Arteritis is a disease of blood vessels that may also cause such symptoms.

Thromboembolic diseases of blood vessels may also cause the same. Emboli that originate in heart or carotid artery may lodge in small blood vessels of eye causing transient visual loss. But remember if these episodes are more frequent this is less likely to be due to heart related emboli. Investigation are still needed.

Many patients with previous heart diseases history may get eye symptoms like you have due to less than needed eye blood supply (hypo-perfusion) due to cardiac rhythm abnormalities.

Anemia due to lack of hemoglobin or red blood cells may cause the same issue. Valve replacement patients may have more destruction of Red blood cells in heart and resulting anemia may cause the eye transient loss of vision.

Heart failure is also a cause in some.

If we go more serious in our discussion, Leukemias and Lymphomas are the blood disorders that may also cause the same.

Spasm of blood vessels of eye and brain is another cause.

Exercise may be the reason. so try doing less than your recent physical activity.

In one sided eye symptoms Carotid Doppler Ultrasound is mandatory. You also have only right eye symptoms.

Other tests:
CBC with ESR and Differentials.
Echocardiography
Markers of Inflammation to rule out Giant Cell Arteritis.
Brain Imaging studies may be needed.

Management may need Carotid arterial surgical correction and works for some. In medications Antithrombotics prove promising.


Please make an appointment with your Primary Care Physician or Internal Medicine Specialist for thorough evaluation and management accordingly. He may refer you to Ophthalmologist, Cardiologist or a Vascular Surgeon where needed.

Let me know if you need further assistance. If satisfied here please click on Close the Discussion and leave your valuable feedback. Have a good one.

Regards!

Above answer was peer-reviewed by : Dr. Arnab Banerjee
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Answered by
Dr.
Dr. Muhammad Hanif

General & Family Physician

Practicing since :2009

Answered : 2369 Questions

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What Causes Partial Vision On Left Eye Occasionally?

Brief Answer: Ophthalmologist consultation is the best next step ! Detailed Answer: Welcome to HCM and thanks for the consult. I have carefully reviewed you health concerns and can well realize sensitivity of issues you have. Such kind of partial loss of vision that's reversible and lasts for short duration may be related to serious eye abnormality that needs corrected. Some patients are diabetic and long lasting Diabetes Mellitus causes the lens to get destroyed in many ways. There is excess glucose in blood and it forms a compound named Sorbitol that is accumulated in eye and haziness of lens is an issue. Diabetes may also cause damage to the blood vessels in eye. Optic nerve is also damaged and may lead to vision issues. Other causes include : Hypertension causing a damage to lens, ciliary muscles (the ones holding the lens in place), optic nerve (the nerve in eye that is center piece in the visual pathways). Senile changes also may cause damage to lens, blood vessels or the nerves. Intraocular Pressure (IOP) changes also may cause issues of vision. Best next step practically is: A thorough evaluation by an Ophthalmologist who is the trained personnel to treat such cases after diagnosis. Diagnosis will be based on Physical examination and a battery of tests on your eyes. Management goes accordingly. Early eye changes can be manipulated via Laser treatments. More advanced cases may need Intraoccular lens implantation through surgery if there is involvement of lens only with normal Optic nerve. Hope it helps. please feel free to contact back for further assistance if needed. I will be happy to reply in no time. Regards!