Blindness cause by fasting?

I'm sure this topic is going to get some hits, I was really surprised to read this article off naturalhygienesociety.org:

http://naturalhygienesociety.org/review/0801/shelton-fasting.html


here's an excerpt:

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NEW IMPROVED UNDERSTANDING
Since 1964, when Shelton's text was written, some new important understandings have been discussed on INHS email list.

1. ENOUGH ENERGY: Dr. Fielder has described the improved results, and more complete healing, he is getting if he waits for the first cold to start, before allowing the patient to start fasting. An excellent time to start fasting may be when we have a cold (or acute disease). In acute disease we usually lose our appetite, and feel tired --- so actually the body itself tells us to "stop eating" and "go to bed".

2. NEW DRUG DANGERS: Dr. Bass has described the strange effects that new types of prescription drugs have caused in some of his patients while fasting, effects he has not seen before. E.g. extreme temperatures (from certain Antibiotics ). Medical research is continually creating drugs that are stronger, more toxic and more dangerous. Dr. Fielder has published a list of drugs that can cause deaths while fasting, without warning. (Examples: the birth-control pill, cortisone, marijuana.)

3. TOXIC AIR DANGERS: Dr. Bass has described his and Dr. Cursio's observations that toxins in the air can kill migrating birds. Birds fast when migrating. Cursio observed migrating birds falling dead from the sky, when passing over New York. So, perhaps we better go to a place with pristine air while fasting.

4. DEFICIENCY DANGERS: We have heard stories of people, who have have been so deficient that they suffered serious damage while fasting. E.g. brain damage (Alzheimers) in vegans, or damage to the eyes (blindness) in a vegetarian who didn't rest. (Bodies of vegans, & sometimes vegetarians, can be very deficient in fats & proteins.) Conclusion: Those who are deficient should never fast.

5. NOT A GOOD WEIGHT-LOSS TOOL: Drs. Fielder & Goldberg have been warning us repeatedly: Watch out for the "fasting and feasting syndrome"! (What is this? Sometimes people water-only-fast annually for weight-loss, but inbetween they feast, =over-eat on unhealthy foods, and gain lots of weight. A negative jo-jo effect.) Fasting must be followed by strict improved diet, otherwise you will gain weight quickly. After fasting the body has a more difficult time losing weight, has more efficient nutrient-uptake. If you cannot control your overeating, better not fast.

6. TODAY FASTING IS MORE DIFFICULT: People are so toxic nowadays that ignorant fasting can be dangerous. Nowadays the blood of babies may contain hundreds of toxins. Even supervised fasting is more difficult than 50 years ago. It is usually safer for amateurs to go on a veggie juice diet or a raw diet, than to fast without professional supervision.


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so where are these "stories of people, who have have been so deficient that they suffered serious damage while fasting. E.g. brain damage (Alzheimers) in vegans, or damage to the eyes (blindness)"

I welcome any input on this. And for the record, I've been doing a lot of google searches using the keywords 'blindness' 'blind' "water fasting" deficiency & deficient and am NOT coming up with any articles related to the 'cases' mentioned in the article above.