Spectral transmittance of some ophtalmic lences in Malaysia

This study was conducted to determine the spectral transmittance of some commonly dispensed ophthalmic lenses in Malaysia. The efficiency of these lenses in providing ocular protection against ultraviolet radiation was also examined. Eight lenses that are currently marketed in Malaysia as lenses wit...

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Main Authors:	Sharanjeet-Kaur, M. Normazila, A.E. Ariffin
Format:	Article
Language:	English
Published:	Department Of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia 2002
Online Access:	http://journalarticle.ukm.my/4420/ http://journalarticle.ukm.my/4420/ http://journalarticle.ukm.my/4420/1/1.pdf

id	ukm-4420
recordtype	eprints
spelling	ukm-44202016-12-14T06:35:59Z http://journalarticle.ukm.my/4420/ Spectral transmittance of some ophtalmic lences in Malaysia Sharanjeet-Kaur, M. Normazila, A.E. Ariffin, This study was conducted to determine the spectral transmittance of some commonly dispensed ophthalmic lenses in Malaysia. The efficiency of these lenses in providing ocular protection against ultraviolet radiation was also examined. Eight lenses that are currently marketed in Malaysia as lenses with “UV-coating” were randomly selected for the testing. These lenses (Hoya, Essilor Orma, Optron, Sola, Igel, Zeiss, Vista Optics and American Optical) were obtained from a few optometric practices in Kuala Lumpur. They were marketed as lenses with "UV blocking" properties by virtue of the UV coat on them. A Spectrophotometer (Shimadzu UV-160A) was used to determine the spectral transmittance of these lenses. It was found that Hoya, Essilor, Optron, Sola and Igel lenses provided good protection against ultraviolet B radiation. However, there was transmission (10 to 15%) of ultraviolet C radiation. It was also found that these lenses transmitted some ultraviolet A radiation, averaging at about 28% for all 5 lenses. Zeiss, Vista Optics and American Optical lenses were all found to be capable of blocking ultraviolet C radiation. However, Zeiss lens transmitted some ultraviolet A and Vista Optics lens transmitted some ultraviolet A and B radiations as well. The American Optical lens was the only lens that blocked the transmission of all of ultraviolet radiations A, B and C. This study shows that UV-coated American Optical lenses as marketed in Malaysia provide sufficient protection against ultraviolet radiation. Department Of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia 2002 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/4420/1/1.pdf Sharanjeet-Kaur, and M. Normazila, and A.E. Ariffin, (2002) Spectral transmittance of some ophtalmic lences in Malaysia. Jurnal Kesihatan Masyarakat, 8 (S). pp. 66-71. ISSN 1675-1663 http://www.communityhealthjournal.org/detailarticle.asp?id=324&issue=Vol8(S):2002
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This study was conducted to determine the spectral transmittance of some commonly dispensed ophthalmic lenses in Malaysia. The efficiency of these lenses in providing ocular protection against ultraviolet radiation was also examined. Eight lenses that are currently marketed in Malaysia as lenses with “UV-coating” were randomly selected for the testing. These lenses (Hoya, Essilor Orma, Optron, Sola, Igel, Zeiss, Vista Optics and American Optical) were obtained from a few optometric practices in Kuala Lumpur. They were marketed as lenses with "UV blocking" properties by virtue of the UV coat on them. A Spectrophotometer (Shimadzu UV-160A) was used to determine the spectral transmittance of these lenses. It was found that Hoya, Essilor, Optron, Sola and Igel lenses provided good protection against ultraviolet B radiation. However, there was transmission (10 to 15%) of ultraviolet C radiation. It was also found that these lenses transmitted some ultraviolet A radiation, averaging at about 28% for all 5 lenses. Zeiss, Vista Optics and American Optical lenses were all found to be capable of blocking ultraviolet C radiation. However, Zeiss lens transmitted some ultraviolet A and Vista Optics lens transmitted some ultraviolet A and B radiations as well. The American Optical lens was the only lens that blocked the transmission of all of ultraviolet radiations A, B and C. This study shows that UV-coated American Optical lenses as marketed in Malaysia provide sufficient protection against ultraviolet radiation.
format	Article
author	Sharanjeet-Kaur, M. Normazila, A.E. Ariffin,
spellingShingle	Sharanjeet-Kaur, M. Normazila, A.E. Ariffin, Spectral transmittance of some ophtalmic lences in Malaysia
author_facet	Sharanjeet-Kaur, M. Normazila, A.E. Ariffin,
author_sort	Sharanjeet-Kaur,
title	Spectral transmittance of some ophtalmic lences in Malaysia
title_short	Spectral transmittance of some ophtalmic lences in Malaysia
title_full	Spectral transmittance of some ophtalmic lences in Malaysia
title_fullStr	Spectral transmittance of some ophtalmic lences in Malaysia
title_full_unstemmed	Spectral transmittance of some ophtalmic lences in Malaysia
title_sort	spectral transmittance of some ophtalmic lences in malaysia
publisher	Department Of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia
publishDate	2002
url	http://journalarticle.ukm.my/4420/ http://journalarticle.ukm.my/4420/ http://journalarticle.ukm.my/4420/1/1.pdf
first_indexed	2023-09-18T19:41:28Z
last_indexed	2023-09-18T19:41:28Z
_version_	1777405619338215424

Spectral transmittance of some ophtalmic lences in Malaysia

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