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Photodynamic therapy, or PDT, is a procedure in whichlevulan or metvix, a photosensitizer, is applied to the skin and incubates fora period of time (usually 1 to 3 hours). The photosensitizer is thenactivated by a light source, such as blue light, red light or intense pulsedlight. Actinic keratoses (precursors to squamous cell carcinoma) and acneboth respond well to the treatment. While initial studies for thetreatment were done with longer incubation times, many studies have shown thatshorter times are just as effective. It is very important to protect skinfrom the sun for at least 48 hours post treatment. Off label uses include thetreatment of non-melanoma skin cancers and photoaging. Side effects can includephototoxic reactions including pain, burning, pruritis, erythema, edema, localskin photosensitivity [short period of time], potential eye phototoxicity[unlikely with topical PDT but it can occur], crusting, vesicobullous reaction, and erosions for7-10 days and then peeling (normal response). These effects can be mild orsevere depending on other factors (sun/artifical light exposure).
PDT is a very safe and effective procedure for the treatment of photo-damage of the skin. It is very unlikely that this treatment would cause blurring of your eyes due to any eye injury per se. That being said eye injury could potentially occur if your eye was exposed to either the levulinic acid or to the laser energy - again I think these complications are rare. The eyelid skin can swell extensively with PDT and this can give you a sense of temporary blurriness. I would recommend that you follow up with your physician in a timely fashion so that they can assess your eyes for you.
Yes, it is as the action spectrum lies in different wavelengths, so you will not be ultra sensitive to doxycycline nor will you burn.Blue light kills the bacteria, and I often use this in combination with either Roaccutane, or with antibiotics such as doxycycline, minocycline or Bactrim. All ...
Melasma or facial hyperpigmentation is a very difficult condition to treat. In our office, we use a variety of treatments including skin care products (containing retinoic acid, hydroquinone, glycolic acids), sunscreens, chemical peels (light, medium, deep including the blue peel), and lasers...
You should notice a significant before and after photo difference if PDT was successful. Have a look at the before photos. Hard to give a diagnosis, but these maybe POROKERATOSES or seb ks, In this case PDT will not work. For more on PDT review the video reference below. All the best Dr Davin S....
It doesn't sound like you need to worry. Indirect exposure after PDT further enhances the reaction. If the exposure is significant, it could really exacerbate your reaction. However, it seems like your exposure was minimal.
Yes PDT can help as the chemical ALA or Methyl ALA is concentrated in the oil or sebaceous glands. I normally use red light at 630nm compared to blue at 430 +nm as red light penetrates deeper. I usually do not encourage PDT as treatment for seb hyper, unless this is covered by insurance....
Thanks for your question – and the answer is yes, based on the type of light source that is used. The conventional method of PDT in the US – with blue light – will have little effect on pigment in most. But if an IPL is used, either alone or with the blue light, then significant changes can b...
