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Patients’ satisfaction of using plastic CR-39 lenses
Joint Authors
al-Madina, Abd al-Aziz M.
al-Awad, Muhammad al-Hasan A.
Dirar, Mubarak
Source
Journal of Science and Technology
Issue
Vol. 13, Issue 2 (31 Dec. 2012), pp.25-37, 13 p.
Publisher
Sudan University of Science and Technology Deanship of Scientific Research
Publication Date
2012-12-31
Country of Publication
Sudan
No. of Pages
13
Main Subjects
Abstract EN
This article investigated the personal satisfaction of wearing Columbia resin CR-39 ophthalmic lenses in Khartoum state; it investigated comfort, durability and safety of such lenses.
The investigation was carried out by questionnaire on 304 subjects.
Participants' ages ranged between 5 and 65 years with a mean of 32.22±12.81 years, 178 males versus 126 females.
The collected data were analyzed using the statistical package SPSS.
The results revealed that significant element of comfort 96% in vision was noted in using CR.39 ophthalmic lenses, in addition to 99.7% of the subjects stated that CR.39 lenses have light weight compared with ophthalmic glass lenses; however 89.5% users clearly stated that durability was poor for those type of lenses; while 96% of the participants pointed that the lenses were safer compared to the ophthalmic glass lenses.
It was found that scratches were the main cause of lens colour changes p=0.001 and visual blurring p=0.007, however; spectacles, cases were found to be a significant cause of scratches.
Self selection for clear CR-39 among other types of lenses, has a significant role in discomfort p=0.046; 81.9% of participants had chosen plastic lenses by themselves, while 83.1% preferred plastic for their new spectacles.
The causes for changing spectacles were found to be scratches (93%) and discomfort (80%).
Blurring of vision was found to be in 57.6% and colour changes were 41.1% of the studied group.
Based on evaluation by participants the study concluded that CR.39 lenses are comfort, safe compared to glass lenses.
However, due to scratches they have short durability.
American Psychological Association (APA)
al-Madina, Abd al-Aziz M.& al-Awad, Muhammad al-Hasan A.& Dirar, Mubarak. 2012. Patients’ satisfaction of using plastic CR-39 lenses. Journal of Science and Technology،Vol. 13, no. 2, pp.25-37.
https://search.emarefa.net/detail/BIM-388477
Modern Language Association (MLA)
al-Madina, Abd al-Aziz M.…[et al.]. Patients’ satisfaction of using plastic CR-39 lenses. Journal of Science and Technology Vol. 13, no. 2 (2012), pp.25-37.
https://search.emarefa.net/detail/BIM-388477
American Medical Association (AMA)
al-Madina, Abd al-Aziz M.& al-Awad, Muhammad al-Hasan A.& Dirar, Mubarak. Patients’ satisfaction of using plastic CR-39 lenses. Journal of Science and Technology. 2012. Vol. 13, no. 2, pp.25-37.
https://search.emarefa.net/detail/BIM-388477
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 36-37
Record ID
BIM-388477