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  1. Replies
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    Better if you were given information from the...

    Better if you were given information from the manufacturers - but they don't give info out that can allow you to make valid comparisons between lenses. In the old days you could do ray tracing...
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    The client has a point. Much of what is done in...

    The client has a point. Much of what is done in optics is guesswork, for example how do you know which type of varifocal is best? What differences are there when lenses are at slightly the wrong...
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    I agree this is the current thinking - but it is...

    I agree this is the current thinking - but it is wrong. Or else the videos I have put together are wrong. Over 100 of them!
    Whoops spelling though on Capgras - you are right. Capgras is an unusual...
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    send me your email address and i will send you...

    send me your email address and i will send you some info - it is a fascinating area
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    thanks - but it needs a lot of referencing cross...

    thanks - but it needs a lot of referencing cross referencing - videos need editing, there is around 200 hrs of video - past experience suggests it takes around an hour per minute to do everything...
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    sugeestions please

    I have over a number of years made what is likely to be the most comprehensive and extensive video collection of the effects of tints and filters in the world.

    I have now decided that it is about...
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    Its now complete and ready for ordering - this is...

    Its now complete and ready for ordering - this is the first place that it has been seen
    To order direct https://sensoryprocessingcentre.myecomshop.com/product/full-kit-and-traing/?hash=70b39fc5
    ...
  8. Any colour of light can cause migraines if you...

    Any colour of light can cause migraines if you are sensitive - most common cause is the L pathway, most migraines stop in a couple of minutes if it is attenuated, but you need to check before...
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    could there be a cyclophoria?

    could there be a cyclophoria?
  10. Funny this, virtually any yellow tinted lens will...

    Funny this, virtually any yellow tinted lens will block blue better than coated lenses
  11. Replies
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    there is a slight overlap with syntonics, but...

    there is a slight overlap with syntonics, but prescribing a tint from an optimum gamut in colour space is very different from empirical prescribing methods. One of the most important aspects is that...
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    Sorry, not true. Unless of course you sell tints...

    Sorry, not true. Unless of course you sell tints because you understand their effects and how and when to prescribe them.There is precisely no marketing material in the course.
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    Syntonics form a very small part of course. You...

    Syntonics form a very small part of course. You are right to observe that colour can be used by some to heal. Light and color have long been associated with healing, the great cathedrals of Europe...
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    Sorry to disappoint, but nothing to do with...

    Sorry to disappoint, but nothing to do with selling tints. The level two incorporates working in color space, why tints can look the same but have completely different properties, testing techniques...
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    course on tint prescribing

    At last its just about finished!

    After many attempts i have managed to set up to courses for professionals and parents in tint uses and prescribing and intend to market them in September /October....
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    right - ar types have limited blacking of blue

    right - ar types have limited blacking of blue
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    unfortunately its just not true - we have some of...

    unfortunately its just not true - we have some of the most advanced instruments in the world - and although there may be a case for degeneration it does not follow that there are symptoms. I am just...
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    I agree about pen test - but don't agree that...

    I agree about pen test - but don't agree that there are no effects of blue light (although they are overhyped). If you want to stop blue - you have to use a tint not a form of AR coating. The effects...
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    Most blue light blockers actually only reduce a...

    Most blue light blockers actually only reduce a small part of the spectrum and are not true blockers i.e. notch or band filters. The name is misleading. If you wish to block blue light completely it...
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    There is a major factory in far east that is now...

    There is a major factory in far east that is now supplying specs online. Retail price $10 - quality of frames poor - lenses + centres - take your chances - but it is having effect
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    around 15-20% of people have significant effects...

    around 15-20% of people have significant effects - but whether you prescribe for that many - probably nearer 5-10 really benefit enough to say it is critical to visual performance
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    We were asked by one of the lighting companies to...

    We were asked by one of the lighting companies to look at effects of various colour temperatures (from 1800K to 10 000K) on people - result - variable effects - and unpredictable. I suspect that the...
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    There are some limited effects of blue light - on...

    There are some limited effects of blue light - on the magnocellular system, on circadian ryhthms, on arousal. There is also an argument that high intensity blue light may cause retinal harm - but the...
  24. I am looking for contact lens specialist in california for unusual condition

    "
    If you’d like to see if you can find someone we’re in Grass Valley and could go about 50 miles away so Sacramento & Yuba City"

    The lenses would have tinted pupil - for prosopagnosia /...
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    mood changing lenses

    yes tints can change mood / arousal etc - and a lot more too.

    but not just zeiss lenses - every tint has the potential to have an effect
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