Light Protection Performance of Textile Phototherapy Eye-patch Protectors for Jaundiced Infants

Abstract

In this paper we report on an experimental investigation into the performance of textile eye-patch protectors for jaundiced infants nursed in neonatal units which are routinely used to protect their eyes from strong light during phototherapy. With the view of practical application, the main factors affecting the light protection performance of an eye-patch protector, including the light transmission level of the fabric, the irradiance level, location of the light unit, the head directions of the infant, and the design components of eye-patch protectors, were examined in a simulated clinical environment of phototherapy light treatment. It was found that textile eye-patch protectors are able to shield the strong phototherapy light effectively. However, the light protection performance of the eye-patch protector is greatly affected by its fabrication and the level of the eye-patch displacement. Results from the current work confirmed that fabric constructional parameters and structure both had a significant impact on phototherapy light protection. Fabric that was black in color could give effective protection from different light sources. Results also revealed that the selection of light units, the positions and the head directions of the infant, and the infant’s distance from the light unit are major factors affecting the irradiance level and the efficacy of the treatment. Uniquely, non-linear regression models have been applied and demonstrated to predict the safety performance of eye-patch protectors.

Keywords

eye-patch protector phototherapy treatment light protection performance

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References

Kelnar, C.J.H. , Harvey, D. , and Simpson, C. , "The Sick Newborn Baby", 3rd edn, Bailliere Tindall, London, 1995.

Melton, K. , and Akinbi, H.T. , Neonatal Jaundice , Postgrad. Med., 106(6), 167-178 (1999).

Levene, M.I. , Tudehope, D.I. , and Thearle, M.J. , "Essentials of Neonatal Medicine", 3rd edn, Blackwell Science, Oxford, 2000.

Dicken, P. , Grant, L.J. , and Jones, S. , An Evaluation of the Characteristics and Performance of Neonatal Phototherapy Equipment, Physiol. Meas., 21, 493-503 ( 2000).

Sisson, T.R.C. , Retinal Changes Produced by Phototherapy, J. Pediatrics, 77(2), 221-227 ( 1970).

Robinson, J. , Light Transmission Measurements and Phototherapy Eyepatches, Arch. Disease Childhood, 66, 59-61 ( 1991).

Porat, R. , Brodsky, N. , and Hurt, H. , Efficacy of Phototherapy Eye Shields: Tubular Stockinette versus Bili-mask , Pediatric Res., 20, 358A (1986).

Davies, V.A. , The Effectiveness of Various Eye masks (EM'S) in Reducing Light Intensity (LT) During Phototherapy (PT), Pediatric Res., 20, 346A (1986).

Moseley, H. , and Marshall, J. , Protective Light Shields for Neonatal Phototherapy, Lancet , October 8, 854-855 (1988).

10.

Chin, K.C. , Moseley, M.J. , and Bayliss, S.C. , Light Transmission of Phototherapy Eyeshields, Arch. Disease Childhood, 62, 970-971 (1987).

11.

Levene, M.I. , Uneven Distribution of Light in Standard Phototherapy , Arch Disease Childhood, 55, 398-408 ( 1980).

12.

12. Keybus, C.V. , Laperre, J. , and Roelandts, R. , Protection from Visible Light by Commonly Used Textiles is not Predicted by Ultraviolet Protection, J. Am. Acad. Dermatol., 54(1), 86-93 ( 2006).

13.

Wilson, C.A. , Bevin, N.K. , and Laing, R.M. , Solar Protection-Effect of Selected Fabric and Use Characteristics on Ultraviolet Transmission, Textil. Res. J., 78(2), 95-104 (2008).

14.

Deng, Y.M. , Yick, K.L. , Kwok, Y.L. , and Wong, S.C. , Eye-patch Protector Design for Neonates in Hong Kong Used in Phototherapy Treatment, in "The 85th Textile Institute World Conference", Colombo, Sri Lanka, March 2007.

15.

Deng, Y.M. , Yick, K.L. , Kwok, Y.L. , and Wong, S.C. , Development of Eye-patch Protector for Neonates Used in Phototherapy Treatment , in "The Fibre Society 2007 Fall Annual Meeting and Technical Conference", Davis, CA, October 2007.

16.

Xue, S.Y. , and Yang, S.X. , Power System Frequency Estimation using Supervised Gauss-Newton Algorithm, Measurement, 42, 28-37 (2009).

17.

Chen, M.Y. , Sun, R.J. , Dong, X.Y. , and Lai, K. , Visual Masking Performance of a Fabric, Textil. Res. J., 78(7), 625-630 (2008).

18.

Dubrovski, P.D. , and Golob, D. , Effects of Woven Fabric Construction and Color on Ultraviolet Protection, Textil. Res. J., 79(4), 351-359 (2009).

19.

Verman, J.J. , Wong, R.J. , and Stevenson , D.K. , Phototherapy: Current Methods and Future Directions, Seminars Perinatol., (2004).

20.

Tan, K.L. , The Pattern of Bilirubin Response to Phototherapy for Neonatal Hyperbilirubinaemia. Pediatric Res., 16, 59-61 (1982).