December 1982
Volume 23, Issue 6
Articles  |   December 1982
Psoralen--long-wave ultraviolet therapy and human cataractogenesis.
Investigative Ophthalmology & Visual Science December 1982, Vol.23, 801-804. doi:
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      S Lerman, J Megaw, K Gardner; Psoralen--long-wave ultraviolet therapy and human cataractogenesis.. Invest. Ophthalmol. Vis. Sci. 1982;23(6):801-804.

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Cataract formation associated with psoralen--long-wave ultraviolet (P-UVA) therapy has been documented in experimental animals. Presumptive P-UVA cataracts in humans have also been reported recently. Cataracts from two patients on P-UVA therapy were subjected to high-resolution phosphorescence spectroscopy. The lens homogenates from these two patients showed phosphorescence peaks identical (in shape and lifetime) with the previously reported 8-methoxypsoralen lens protein photoproduct seen in P-UVA-treated cataractous rat lenses. The data provide objective proof that these phototherapeutic drugs can generate specific P-UVA photoproducts in human lenses. Similar photoproducts have previously been demonstrated in experimental (rat) P-UVA cataracts.


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