Light transmission of phototherapy eyeshields.
نویسندگان
چکیده
منابع مشابه
Light transmission of phototherapy eyeshields.
Twelve types of phototherapy eyeshields showed peak light transmission of less than 0.1%, and none transmitted greater than 0.04% light in the 460 nm spectral region. Commercial eyeshields offered no advantage over locally made ones. The choice of shield may be less important than how it is secured over the infant's eyes.
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The transmission characteristics of phototherapy eyeshields have been measured under conditions that mimic the clinical situation. Peak transmission (less than 10%) was detected at 700 nm for the poorest patch tested and less than 2% for either of the other patches examined. The optics of measurement systems are considered with reference both to this and previous studies of light transmission t...
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Objective: Zirconia cores have limited light transmittance and data are scarce on light transmission through zirconia cores with and without the veneering ceramic. Methods: In this in vitro study, Disc-shaped specimens (11.5 mm in diameter and 0.4 (0.05) mm in thickness) were fabricated of three types of zirconia namely Mamut, Heany and ZirkonZahn (n=5). A disc-shaped specimen (11.5 mm in d...
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ژورنال
عنوان ژورنال: Archives of Disease in Childhood
سال: 1987
ISSN: 0003-9888,1468-2044
DOI: 10.1136/adc.62.9.970