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Light Sensitivity-Basic Information
 Moderated by: Dr Trevor Marshall Topic closed

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Joined: Sat Jul 10th, 2004
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 Posted: Tue Dec 4th, 2007 04:02
Most folks who are sick enough to need the Marshall Protocol have some degree of sensitivity to natural light (sun on skin and in eyes) and bright lights in the eyes. 

The following FAQs provide detailed information:

Should I wear NoIRs, avoid natural light exposure and eliminate vitamin D before starting Benicar?

Photosensitivity During Recovery From Th1 Inflammatory Disease

What are the latest recommendations regarding sun/light exposure?

Why does exposure to natural light increase symptoms?

The Effect of Sunlight/daylight and Bright Lights

The effect of light on the brain (Amygdala)


Underground physical working does not seem to be a significant risk factor for low 25-OHD levels 
 
Light avoidance simplified


Incident Radiation Tutorial

How did you deduce that infrared light-- the energetically weakest form of light-- catalyzes the creation of D?

Testimonials to the need to avoid light

Testimonials to the need to wear adequate eye protection

How to Avoid Sunlight and Bright Lights

Protecting Your Eyes (where to purchase sunglasses)

NoIR Glasses

Obtaining NoIRs in other countries

Stylish sunglasses

Prescription sunglasses

Four types of sunglasses and their typical use

NoIR clipons

NoIRs -Getting a good fit. some tips.

Maintaining your NoIR sunglasses

Night driving

Yellow or amber-tinted sunglasses best

Protecting your eyes at work

Oakley sunglassses are not enough protection

How to turn down the brightness of a TV screen or computer monitor

Lighting

relieve eye link

Contact lenses

30 Lux (how to lower artificial lighting)


Clothing

Do car windows, cloudy skies or geographical location affect the amount of sun exposure?

Does sunscreen prevent the production of Vitamin D?


Sunscreen Overview

How does ketoconazole cream work?

Why do I feel better in the summer? And worse in the winter?

Won't avoiding the sun increase my depression?

Should I wear NoIRs, avoid natural light exposure and eliminate vitamin D before starting Benicar?

Why are my symptoms more intense after exposure to light &/or Vitamin D?

Should I avoid sun exposure and Vitamin D while I'm waiting to start the MP? 

Can I go out in the sun again after remission? How will I know when I've recovered?

Won't avoiding the sun increase my depression?


What precautions do I need to take when I am going out or when travelling away?

Eye Inflammation

Eye inflammation, vision, and bacteria

The Myths and Realities of Vitamin D and Sunlight

Highlights from these informative FAQs are below:

When you begin these measures of avoiding sun/lights you may become more sensitive to any fluctuation in your level of 1,25-D caused by sun/lights exposure.
We recommend: Get your house prepared as much as you can prior to starting, as you may not feel up to it once you get going.

If symptomatic:


-avoid natural light to skin and eyes

-avoid bright lights in eyes (wear recommended eye protection)

-if you go outside you need to cover up completely (That includes long pants, long sleeves, scarf, hat, and gloves.)

Even if the windows are shaded by trees or overhang, or are facing north/south, they must be covered to block the light from entering. 

Symptoms in response to sun light exposure are not due to an increase in antibiotic potency or an increase in immunopathology. They are caused by a rapid increase in 1,25-D and the hormonal shift this causes.

There isn't always a pattern or necessarily a time period (within minutes or several days) to depend upon for reactions or consequences. Some folks are not as affected by the light as others and there is no typical length of time between sun exposure and a symptom flare.
Some will feel the effects within an hour or two while others may not experience an increase in symptoms for a day or more.  

As you continue to progress with time and experience, immune response and/or sun reactions will vary in all areas within cycles and phases.  Be prepared to modify your meds and expectations accordingly, so you may better endure the physical and emotional aspects of the process.

The aim is to achieve tolerable symptoms and the meds are adjusted similarly whether the symptoms exacerbate from an immunopathological response or from light exposure.

Some folks are not as affected by heat as others..

How much skin you can expose without experiencing debilitating symptoms is a very individual thing. Sun exposure may increase symptoms and, if prolonged, may inhibit bacterial killing.


Some with early disease may be successful on the MP without limiting light exposure, while others with severe symptoms may not be able to function without diligently avoiding light exposure. Some with subclinical symptoms may experience unexpected symptom exacerbation due to light exposure.

Light sensitivity is part of the healing process, and not due to the meds. The light sensitivity rises and falls within the MP, while the Benicar dosing is ongoing throughout, thus it is not the Benicar but rather the healing. However you adjust the protocol meds you will still have the same degree of light sensitivity at that same stage of healing.

As far as your own light sensitivity, you will have to find that out on your own. Err on the side of caution for a couple of months until you really are well established on the MP and your D levels are down. Then you can try a little exposure and see what happens. The reaction can be delayed, so keep that in mind re any increase in symptoms.


Many have been able to work or attend school and have managed to progress on the MP even though that progress might be slowed down a bit by the increase in 1,25-D generated by limited exposure to daylight or bright lights. See How will the MP affect my life? Can I continue to work? or play or manage my Family?

Once you start avoiding vitamin D so that your immune system can start functioning properly again, the photosensitivity sets in, and it will stay for 6-24 months, gradually decreasing as you progress on the MP.

As you recover you will get to the point where you can't see anything through those dark glasses any more. you wont need them.

The palliative effect of the sun is felt when 1,25-D is high and stable. When you are on the MP, 1,25-D is lowered and fluctuates rapidly so sun exposure is not likely to make you feel better.

There is no one combination of MP antibiotics that will resolve photosensitivity faster. The reality is that the MP takes as long as it takes. When you are symptomatic, your immune system is killing bacteria. You can only kill so many at a time without intolerable symptoms.

For those who are very ill, Dr Marshall says it is better to shut out all natural light and use incandescent lights to less than 30 lux


When you have shut out the natural light you can have incandescent lighting to 30 lux and may be able to see quite easily without glasses depending on your own photosensitivity (some experience this as glare or pain). We recommend NoIR glasses protection as needed for television and computer. 

Dimmer switches and/or lower wattage bulbs may be helpful to achieve less than 30 lux indoors making it possible to be able to see quite easily without glasses. you must be able to see and be safe. The aim is to keep visibility up while keeping the light energy low according to your own photosensitivity.  

The difference between natural and artificial light.  30 lux refers specifically to artificial (incandescent) light.  Reducing the natural sunlight in a room to 30 lux is not the same due to the spectral differences in the light (more UV and IR).

30 lux artificial light may be low enough for some, who will suffer no symptoms of photosensitivity without glasses, and not for others. You will know by your symptoms.

Dr Marshall wrote: "The short-term consequences of not wearing adequate eye protection will be an increase in neurological symptoms caused by stimulation of the 
Amygdala in the brain. These neurological symptoms include fatigue, irritability, aggressiveness, lack of concentration, brain fog, photosensitivity, transient loss of memory, mood swings, confusion, anxiety, anger, neurosis and even psychosis." <<   Adequate eye protection will be particularly important for anyone with eye inflammation.

To increase your chances of success with the MP, you should avoid unnecessary exposure to daylight. Those who are very symptomatic need to diligently avoid light in order to reduce intolerable symptoms.

We recommend that you have the NoIR glasses before beginning Benicar an this is not dependant on whether you consider yourself to be light sensitive or not. 

Fluorescent lights in offices and stores can also increase your symptoms, and you may need to wear the NoIR glasses there as well as when you are watching TV or working on your computer.

If you have all outside light blocked and have your artificial light down to 30 lux, you probably won't have to wear the NoIRs. Some people are very sensitive and even this amount of light bothers them. You'll know if you are sensitive pretty quickly.

Dr Marshall says, "I used to make sure that I was never more than 4 hours from my last Benicar whenever I had to go outdoors. Then, after the exposure, I needed to keep the 4 hour going for 12 hours after the final exposure. Beyond that I could slip back to normal dosing, as the 1,25-D had dissipated .... << to help keep symptoms minimal.. always keep some benicar with you in case of delays..

Natural light > protect skin and eyes..
Artificial light > protect eyes / not skin..


If your home is not protected from natural light, windows covered, because of others in the same space, your skin and eyes need to be protected.


Folks with pre-MP levels of 1,25-D higher than 45pg/ml, those who have osteoporosis or may be at risk for osteoporosis, and those who didn't assess their 1,25-D should consider that sun exposure may increase 1,25-D to levels that promote bone resorption. They should weigh the risk/benefit ratio of sun exposure vs their need or desire to expose themselves to the sun.

Photosensitivity will gradually diminish during the healing process.

Related topics threads where you may ask questions:


SUNSCREEN questions & suggestions

CLOTHING questions and suggestions 

New MP-Lifestyles.org
This new site is for general discussion about Lifestyles and science-related issues that are not appropriate at this study-site. MP members can post there (use your same username and password as here), and the public can view and search the discussion forums.


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