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...

Full description

Bibliographic Details
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/4420/1/1.pdf
_version_ 1796928069048467456
author Sharanjeet-Kaur,
M. Normazila,
A.E. Ariffin,
author_facet Sharanjeet-Kaur,
M. Normazila,
A.E. Ariffin,
author_sort Sharanjeet-Kaur,
collection UKM
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.
first_indexed 2024-03-06T03:53:41Z
format Article
id ukm.eprints-4420
institution Universiti Kebangsaan Malaysia
language English
last_indexed 2024-03-06T03:53:41Z
publishDate 2002
publisher Department Of Community Health, Faculty of Medicine, Universiti Kebangsaan Malaysia
record_format dspace
spelling ukm.eprints-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
spellingShingle Sharanjeet-Kaur,
M. Normazila,
A.E. Ariffin,
Spectral transmittance of some ophtalmic lences in Malaysia
title 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_short Spectral transmittance of some ophtalmic lences in Malaysia
title_sort spectral transmittance of some ophtalmic lences in malaysia
url http://journalarticle.ukm.my/4420/1/1.pdf
work_keys_str_mv AT sharanjeetkaur spectraltransmittanceofsomeophtalmiclencesinmalaysia
AT mnormazila spectraltransmittanceofsomeophtalmiclencesinmalaysia
AT aeariffin spectraltransmittanceofsomeophtalmiclencesinmalaysia