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Home » Categories » Health & Fitness » Drugs & Medicine » Viagra
Viagra and its clones
 
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Why does Viagra change you color vision? Whenever I take Viagra I know it is kicking in when my vision changes. It is a convenient side effect but a strange one.

By parrib1 Asked Apr 26 2009 4:24PM
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Top Answer out of 6

by stagood on Apr 26, 2009 at 4:27 pm Permalink

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Maybe so you won't see who you are with +3
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Answer 2 out of 6

by Sherri7 on Apr 26, 2009 at 4:26 pm Permalink

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Its about blood pressure
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Avatar parrib1 May, 20 2009 at 03:38 PM
Actually I found out today it isn't. The nerves Viagra tricks into opening up the blood vessels in the penis are the similar to the nerves in the eye.

Answer 3 out of 6

by iwnit on Oct 1, 2009 at 11:07 am Permalink

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1) "The first problem comes because Viagra happens to have a spillover effect. It blocks PDE5, but it also has an effect on PDE6. It turns out that PDE6 is used in the cone cells in the retina, so Viagra can have an effect on color vision. Many people who take Viagra notice a change in the way they perceive green and blue colors, or they see the world with a bluish tinge for several hours. For this reason, pilots can't take Viagra within 12 hours of a flight."
Source and further information:
http://health.howstuffworks.com/viagra5.htm


2) "Researchers at the University of Minnesota say that they have diagnosed a condition called non-arthritic ischemic optic neuropathy (NAION) in a group of men who took the erectile dysfunction drug Viagra. NAION is also known as a stroke of the eye. The condition occurs when blood flow to the optic nerve is interrupted, injuring the nerve and causing permanent vision loss.

The researchers studied seven patients regarding Viagra and blurred vision, all men between the ages of 50 and 69. All of the patients took Viagra and blurred vision and vision loss developed within 36 hours of taking Viagra. It has been known for several years that Viagra use can cause temporary color change in patients' vision, but this new condition appears to be permanent."
Source and further information:
http://www.adrugrecall.com/viagra/blurred-vision.html

Further information:
http://en.wikipedia.org/wiki/Naion
http://en.wikipedia.org/wiki/Sildenafil
- "Pfizer may update Viagra packaging with vision warning":
http://www.encyclopedia.com/doc/1G1-132814336.html
- "Eye side effects of Medications":
http://www.agingeye.net/visionbasics/eye&meds.php
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Avatar parrib1 Oct, 01 2009 at 04:42 PM
Much better answer than I fumbled through.
Avatar iwnit Oct, 01 2009 at 04:53 PM
parrib1: thank you for your feedback!
:-)

Answer 4 out of 6

by anomaly88man on May 3, 2009 at 3:56 pm Permalink

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The chenge in your vision is due to the drop in your blood pressure from Viagra. You may have a blue tinge to objects in your vision from a result of it's use. If your concerned about this ask your doctor.
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Avatar parrib1 Jun, 05 2009 at 08:53 PM
Actually it isn't caused by that. I was listening to a men's health show on satellite radio and they explained what caused it. Apparently the way Viagra works is to trick certain nerves to signal the body to increase blood flow. Your eyes have similar nerve receptor when they fire it causes the change in color vision. They were reporting on an extensive study to verify that Viagra did not harm your vision in any way. Note the effect is very helpful. Viagra can be a bit hit or miss depending on what you have had to eat and other factors. When the bluing occurs you know the wiener meter is running.
Avatar anomaly88man Jul, 09 2009 at 06:44 PM
I see. that makes alot more sense than what i said!
Avatar parrib1 Jul, 11 2009 at 05:38 PM
I had no idea before listening to the show. The effect can be pretty profound. Like I said though it is very handy cause thats how you know it is working.

Answer 5 out of 6

by the slickest on Oct 1, 2009 at 8:37 am Permalink

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dude, as long as you're not "seeing blue" then you're okay.
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Answer 6 out of 6

by Tim Reid as Ray on Apr 26, 2009 at 4:26 pm Permalink

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Haha, you can't get it up!!
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Avatar parrib1 Apr, 26 2009 at 04:55 PM
Never laugh at others pain lest it be presented unto you.
You just cursed your dumb ass to a soft penis when you are old and uglier.
Avatar Tim Reid as Ray Apr, 27 2009 at 07:44 AM
Naaah, no chance. 1, I'm gorgeous and 2, I'm extremely healthy.
Avatar Mystical Dim Sep, 19 2009 at 09:49 AM
....


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Why does Viagra change you color vision? Whenever I take Viagra I know it is kicking in when my vision changes. It is a convenient side effect but a strange one.

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