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Article ; Online: Corneal Characteristics of Myopic Malay School Children and Their Association with Axial Length.

Syed Mohd Dardin, Syarifah Faiza / Mohd-Ali, Bariah / Mohamad Shahimin, Mizhanim / Mohd Saman, Mohd Norhafizun / Mohidin, Norhani

Clinical optometry

2024 Volume 16, Page(s) 107–114

Abstract: Introduction: Corneal characteristics are unique to each eye and can vary among different levels of refractive errors. However, minimal data are available in the literature on corneal characteristics in myopic Malay school children including the ... ...

Abstract	Introduction: Corneal characteristics are unique to each eye and can vary among different levels of refractive errors. However, minimal data are available in the literature on corneal characteristics in myopic Malay school children including the difference between the low myopic group and the moderate myopic group. Therefore, this study aims to determine the corneal characteristics of myopic Malay school children and their associations with axial length. Methods: A total of eighty-four data samples were extracted from forty-two myopic Malay school children. Measurements of the central corneal thickness (CCT), corneal curvature, corneal diameter, and axial length were measured using Lenstar LS900, a non-contact optical biometer. Data were later stratified by the spherical equivalent refraction (SER) into a low myopic group and a moderate myopic group, and paired Results: There was no significant difference in the CCT, corneal curvature and corneal diameter between the low myopic group and the moderate myopic group (t Conclusion: This study reported the corneal characteristics in myopic Malay school children and its associations with axial length. Results of this study can serve as a reference value for the myopic Malay schoolchild population.
Language	English
Publishing date	2024-04-04
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2587459-7
ISSN	1179-2752 ; 1179-2752
ISSN (online)	1179-2752
ISSN	1179-2752
DOI	10.2147/OPTO.S431608
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Article ; Online: Peripheral Eye Length Evaluation in Myopic Children Undergoing Orthokeratology Treatment for 12 Months Using MRI.

Low, Yu Chen / Mohd-Ali, Bariah / Shahimin, Mizhanim Mohamad / Mohidin, Norhani / Abdul-Hamid, Hamzaini / Mokri, Siti Salasiah

Clinical optometry

2024 Volume 16, Page(s) 35–44

Abstract: Purpose: To investigate changes in peripheral eye length (PEL) in myopic children undergoing orthokeratology (Ortho-K) treatment for 12 months using MRI. The results were compared to single vision spectacle wearers (SVS).: Patients and methods: A ... ...

Abstract	Purpose: To investigate changes in peripheral eye length (PEL) in myopic children undergoing orthokeratology (Ortho-K) treatment for 12 months using MRI. The results were compared to single vision spectacle wearers (SVS). Patients and methods: A total of 70 children with myopia (aged 8-9 years old) were recruited. A total of 45 children were fitted with Ortho-K, and 25 were fitted with SVS. The PEL and axial length (AL) were measured by using MRI 3-Tesla, whereas central and peripheral refraction (PR) measurements were conducted at ±30 degrees horizontally with nasal (N) and temporal (T) intervals of 10°, 20°, and 30° and with an open field autorefractometer (WAM-5500 Grand Seiko). All the measurements were conducted at the baseline and 12 months. Results: The MRI analysis indicates that at 12 months, the SVS group showed more elongation of the PEL and AL at all eccentricities than the Ortho-K group did (p < 0.05). The Ortho-K group only showed significant PEL elongation beyond 20 degrees at N20, N30, T20, and T30 (p < 0.05); however, a significant reduction in the AL was detected in the center AL, N10, and T10 (p < 0.05). All eccentricities in the relative PR of the Ortho-K group were significantly more myopic than at the baseline (p < 0.05), whereas in the SVS group, all eccentricities in the relative PR were shown to be significantly more hyperopic than at the baseline (p < 0.05). The PEL and PR showed negative correlations at 12 months in the Ortho-K group. Conclusion: MRI analysis can be utilized to describe changes in PEL in myopic children. It appears that as myopia progressed in Ortho-K lens wearers, the PEL increased by a greater amount than the AL did; thus, the retina was reshaped to become increasingly oblate and to display peripheral myopic defocus.
Language	English
Publishing date	2024-02-09
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2587459-7
ISSN	1179-2752 ; 1179-2752
ISSN (online)	1179-2752
ISSN	1179-2752
DOI	10.2147/OPTO.S448815
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Article ; Online: Wearing Pattern and Awareness About Contact Lens Wear in Secondary School Students in Kuala Lumpur.

Mohd-Ali, Bariah / Azmi, NorAisyah

Clinical optometry

2021 Volume 13, Page(s) 155–160

Abstract: Purpose: To investigate the wearing pattern and awareness about contact lens care among secondary school students in Kuala Lumpur.: Patients and methods: This is a cross-sectional study using self-administered validated questionnaires. A total of ... ...

Abstract	Purpose: To investigate the wearing pattern and awareness about contact lens care among secondary school students in Kuala Lumpur. Patients and methods: This is a cross-sectional study using self-administered validated questionnaires. A total of 2500 questionnaires were distributed to secondary school students (aged 13 to 18 years) from 5 selected schools in Kuala Lumpur. Descriptive statistics were used to analyze the results. Results: A total of 987 completed questionnaires were returned and analyzed. The response rate was 39.5%. Mean age of respondents was 15.5±2.5 years with 54.6% females. Around 9.9% of the respondents were contact lens wearers with female majority (78.6%) and the main reasons for wearing contact lenses were cosmesis (42.8%) and comfort (32.7%). Majority (92.2%) were soft contact lens wearers and daily wear (monthly disposable) is the preferred modality. Nevertheless, 42.4% purchased their lenses from unlicensed vendors and 18.4% rinsed their lenses using tap water. Regarding contact lens care, more than 50% of the respondents were not aware about the correct way of handling contact lenses. Conclusion: Soft contact lens wear is popular among the secondary school students in Kuala Lumpur but the level of practice and knowledge about CL care are unsatisfactory. Thus, health communication strategies and aggressive public ocular health education that can influence behavior changes in teenagers are needed to overcome these issues.
Language	English
Publishing date	2021-05-20
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2587459-7
ISSN	1179-2752 ; 1179-2752
ISSN (online)	1179-2752
ISSN	1179-2752
DOI	10.2147/OPTO.S277786
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Article ; Online: Corneal endothelial morphology of healthy myopic Malaysian children of Chinese ethnicity aged 8-9 years and its association with axial length.

Norhani, Mohidin / Low, Yu Chen / Bariah, Mohd-Ali / Mizhanim, Mohamad Shahimin / Norlaili, Arif

F1000Research

2022 Volume 11, Page(s) 339

Abstract: ... ...

Abstract	Background
MeSH term(s)	Child ; China ; Cross-Sectional Studies ; Endothelial Cells ; Endothelium, Corneal ; Ethnicity ; Humans ; Mydriatics ; Myopia
Chemical Substances	Mydriatics
Language	English
Publishing date	2022-03-21
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2699932-8
ISSN	2046-1402 ; 2046-1402
ISSN (online)	2046-1402
ISSN	2046-1402
DOI	10.12688/f1000research.110560.2
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Article ; Online: Baseline Accommodation and Binocular Vision Measures in Malay Schoolchildren Enrolled in the Myopia Control Study Using Spectacle Lenses in Kuala Lumpur.

Norazman, Fatin Nur Najwa / Mohd-Ali, Bariah / Syed Mohd Dardin, Syarifah Faiza / Mohamad Shahimin, Mizhanim / Mohamad Fadzil, Norliza / Mohd Saman, Mohd Norhafizun / Mohidin, Norhani

Clinical optometry

2024 Volume 16, Page(s) 45–52

Abstract: Myopia control lenses have been shown to modify visual function; however, it is arguable if these changes are short-term or long-term. We investigated the changes in accommodative behaviour and binocular vision functions of Malay myopic children who ... ...

Abstract	Myopia control lenses have been shown to modify visual function; however, it is arguable if these changes are short-term or long-term. We investigated the changes in accommodative behaviour and binocular vision functions of Malay myopic children who participated in a myopia control trial utilising spectacle lenses (n = 40). This article presents baseline accommodation and binocular vision measurements. The mean (± SD) age, spherical equivalent measured by cycloplegic autorefraction, and axial length (AL) for the right eyes were 10.00 ± 1.47 years, -3.02 ± 1.20 D, and 24.42 ± 0.93 mm, respectively. All participants had good distance and near visual acuities with high-contrast charts (100%), which were significantly better than low-contrast charts (10%) (
Language	English
Publishing date	2024-02-20
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2587459-7
ISSN	1179-2752 ; 1179-2752
ISSN (online)	1179-2752
ISSN	1179-2752
DOI	10.2147/OPTO.S432496
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Article ; Online: The morphology of corneal endothelial cells in long term soft contact lens wearers in Kuala Lumpur.

Mohd-Ali, Bariah / Chen, Low Yu

Contact lens & anterior eye : the journal of the British Contact Lens Association

2020 Volume 44, Issue 1, Page(s) 72–75

Abstract: Purpose: To analyse and compare the alterations in corneal endothelium morphology induced by different materials and durations of wearing soft contact lenses (CL) among young adults living in Kuala Lumpur.: Methods: Healthy soft CL wearers were ... ...

Abstract	Purpose: To analyse and compare the alterations in corneal endothelium morphology induced by different materials and durations of wearing soft contact lenses (CL) among young adults living in Kuala Lumpur. Methods: Healthy soft CL wearers were invited to participate in this study. Visual acuity (VA) was measured using the Snellen chart, and subjective refraction was performed using cross-cylinder technique. Standard ocular assessments were conducted using a slit lamp biomicroscope and morphology of corneal endothelial cells (endothelial cell density, ECD, coefficient variation, COV, hexagonality, HEX and central corneal thickness, CCT) were evaluated using a non-contact specular microscope. Statistical analysis was conducted using ANOVA and data from the right eye only is included. Results: A total of 72 subjects (32 SiHy and 40 HCL wearers) and 24 non-CL wearers (control) participated in this study. The gender distribution for study subjects was 13 males and 59 females, with a mean age 22.15 ± 1.84 years old. The mean refraction was -1.86 ± 1.25DS. The duration of wearing CL ranged from 1 to 9 years. Subjects were later divided into 2 groups following duration of CL wear: Group 1 (<5 years) and Group 2 (≥5 years) for analysis purposes. Statistical analysis showed significant alterations in ECD, COV and HEX of CL wearers (p < 0.05), with more changes found in HCL and Group 2 wearers. No significant change was found in CCT. Conclusion: This study concludes that soft CL wear induced alterations in the morphology of corneal endothelial cells. Contact lens material and duration of CL wear (in years) are factors that affect the alterations. Optometrists are recommended to regularly evaluate the morphology of corneal endothelial cells in CL wearers and provide necessary intervention when required.
MeSH term(s)	Cell Count ; Contact Lenses, Hydrophilic/adverse effects ; Corneal Endothelial Cell Loss/diagnosis ; Corneal Endothelial Cell Loss/etiology ; Endothelial Cells/pathology ; Endothelium, Corneal/pathology ; Female ; Humans ; Malaysia ; Male ; Retrospective Studies ; Slit Lamp Microscopy ; Time Factors ; Young Adult
Language	English
Publishing date	2020-07-02
Publishing country	England
Document type	Comparative Study ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2004847-6
ISSN	1476-5411 ; 1367-0484
ISSN (online)	1476-5411
ISSN	1367-0484
DOI	10.1016/j.clae.2020.06.007
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Article ; Online: Patterns of Use and Knowledge about Contact Lens Wear amongst Teenagers in Rural Areas in Malaysia.

Mohd-Ali, Bariah / Tan, Xuan Li

International journal of environmental research and public health

2019 Volume 16, Issue 24

Abstract: Background: Contact lenses (CLs) are more popular than spectacles for vision correction amongst the youth. Knowledge about the risks of wearing CLs is critical especially for those with poor access to public health education. This study investigates the ...

Abstract	Background: Contact lenses (CLs) are more popular than spectacles for vision correction amongst the youth. Knowledge about the risks of wearing CLs is critical especially for those with poor access to public health education. This study investigates the patterns of use and level of knowledge about CL wear amongst teenagers living in rural areas in Selangor, Malaysia using a set of validated questionnaires. Methods: A total of 8500 self-administered questionnaires were distributed in eight selected secondary schools. The results were analysed using descriptive statistics. Results: A total of 2474 (29%) completed questionnaires were collected. The mean age of the respondents was 14.8 ± 1.5 years, and approximately 7.2% were CL wearers. The majority of the wearers were females (76.0%) and wore soft CLs (92.2%). Cosmetic purposes (58.1%) and comfort (24.6%) were the main reasons for wearing CLs. Many of the respondents purchased their lenses from optical shops (50.1%) and beauty accessory shops (15.6%), and approximately 10% did not disinfect their lenses properly. Regarding knowledge about CL care, approximately 56% of the respondents responded correctly. Conclusion: Half of the respondents do not have sufficient knowledge about the risks of wearing CLs. Thus, aggressive public health education aimed at teenagers is needed to prevent improper CL usage.
MeSH term(s)	Adolescent ; Consumer Behavior ; Contact Lenses ; Eyeglasses ; Female ; Humans ; Malaysia ; Male ; Rural Population ; Surveys and Questionnaires
Language	English
Publishing date	2019-12-17
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1660-4601
ISSN (online)	1660-4601
DOI	10.3390/ijerph16245161
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Article ; Online: Comparison of vision-related quality of life between wearing Orthokeratology lenses and spectacles in myopic children living in Kuala Lumpur.

Mohd-Ali, Bariah / Low, Yu Chen / Mohamad Shahimin, Mizhanim / Arif, Norlaili / Abdul-Hamid, Hamzaini / Wan Abdul-Halim, Wan Haslina / Mohidin, Norhani

Contact lens & anterior eye : the journal of the British Contact Lens Association

2022 Volume 46, Issue 1, Page(s) 101774

Abstract: Purpose: There are limited reports available on the impact of wearing Orthokeratology (ortho-K) lenses on the quality of life of Asian children. This study evaluated and compared vision-related quality of life (VRQoL) between myopic children wearing ... ...

Abstract	Purpose: There are limited reports available on the impact of wearing Orthokeratology (ortho-K) lenses on the quality of life of Asian children. This study evaluated and compared vision-related quality of life (VRQoL) between myopic children wearing ortho-K lenses and single-vision spectacles (SVSs), living in Kuala Lumpur, using Paediatric Refractive Error Profile (PREP) questionnaires. Methods: This is a cross sectional study. Myopic children who had been wearing ortho-K and SVSs for 12 months were recruited, and the questionnaires were distributed online. The PREP scores were obtained using a summary scoring method. The Shapiro-Wilk test was used to determine data normality. Unpaired t-test was performed for normally distributed data, and the Mann-Whitney test for non-normally distributed data. P < 0.05 was considered significant. Results: A total of 70 subjects participated in this study (45 ortho-K and 25 SVSs), with a mean age of 10.86 ± 0.73 years. The mean scores for all the items were higher in ortho-K than SVS wearers (p < 0.05). With regard to symptoms during ortho-K lens wear at night, <10 % of the subjects reported difficulty falling asleep, itch/burning/dry eyes and foreign body sensation after lens insertion. Conclusion: Ortho-K improves the vision-related quality of life of myopic school children in Kuala Lumpur. Thus, it should be considered by more local optometrists when managing myopic children.
MeSH term(s)	Humans ; Child ; Eyeglasses ; Quality of Life ; Cross-Sectional Studies ; Contact Lenses ; Myopia/therapy ; Myopia/diagnosis ; Orthokeratologic Procedures/methods
Language	English
Publishing date	2022-10-29
Publishing country	England
Document type	Journal Article
ZDB-ID	2004847-6
ISSN	1476-5411 ; 1367-0484
ISSN (online)	1476-5411
ISSN	1367-0484
DOI	10.1016/j.clae.2022.101774
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Article ; Online: Changes in the morphology of corneal endothelial cells in young myopic adults after 6 months of wearing soft contact lenses: a Malaysian perspective.

Ahmad, Asmah / Mohd-Ali, Bariah / Ishak, Bashirah

Clinical optometry

2018 Volume 10, Page(s) 109–113

Abstract: Purpose: Soft contact lens wear is most frequently associated with morphologic changes in corneal endothelial cells, but the data are scarce in Asians. This study aimed to evaluate changes in corneal endothelial cell morphology after 6 months of wearing ...

Abstract	Purpose: Soft contact lens wear is most frequently associated with morphologic changes in corneal endothelial cells, but the data are scarce in Asians. This study aimed to evaluate changes in corneal endothelial cell morphology after 6 months of wearing soft hydrogel contact lenses (SH) in young myopic adults living in Kuala Lumpur. Patients and methods: Forty-eight subjects were included in the study, 24 were fitted with SH contact lenses (A) and the rest were prescribed with glasses (B). Refraction was conducted subjectively and standard contact lens fitting protocol was followed. Corneal endothelial cell morphology (endothelial cell density, ECD; coefficient of variation, COV; cells' hexagonality, HEX; and central corneal thickness, CCT) was evaluated using specular microscope. Data were collected at baseline and after 6 months of lens wear. Results: Mean age of all subjects was 21.23±1.30 years. All results are shown at baseline and 6 months, respectively. Mean refraction for A was -2.16±0.97 diopter sphere (DS) and -2.05±1.03 DS ( Conclusion: This study found no significant change in corneal endothelial cell morphology after 6 months of wearing SH contact lenses. This is probably due to better oxygen permeability of the contact lens material, good compliance, and short wearing period.
Language	English
Publishing date	2018-09-07
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2587459-7
ISSN	1179-2752 ; 1179-2752
ISSN (online)	1179-2752
ISSN	1179-2752
DOI	10.2147/OPTO.S172272
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Article ; Online: Ocular Dimensions, Refractive Error, and Body Stature in Young Chinese Children with Myopia in Kuala Lumpur, Malaysia.

Mohd-Ali, Bariah / Low, Yu Chen / Shahimin, Mizhanim Mohamad / Arif, Norlaili / Abdul Hamid, Hamzaini / Wan Abdul Halim, Wan Haslina / Mokri, Siti Salasiah / Baseri Huddin, Aqilah / Mohidin, Norhani

Clinical optometry

2022 Volume 14, Page(s) 101–110

Abstract: Purpose: Eyeball shape varies with refraction and body stature. Nevertheless, there are few reports on three-dimensional measurements of eyeball shape in children. The aim of this cross-sectional observational study was to investigate the associations ... ...

Abstract	Purpose: Eyeball shape varies with refraction and body stature. Nevertheless, there are few reports on three-dimensional measurements of eyeball shape in children. The aim of this cross-sectional observational study was to investigate the associations between three-dimensional measurements of ocular dimensions, refractive error, and body stature in young Chinese children with myopia in Kuala Lumpur. Materials and methods: Thirty-five female and 35 male school children aged 8-9 years old were recruited in this study. Cycloplegic spherical equivalent (SE) and visual acuity (VA) were determined using a logarithm of the minimum angle of resolution (logMAR) chart. Body mass index (BMI), body height, and head circumference were ascertained. Three ocular dimensions, that is, longitudinal axial length (LAL), horizontal width (HW), and vertical height (VH), were determined using magnetic resonance imaging (MRI). Results: There were significant differences among the ocular dimensions in the myopic children. Bonferroni-corrected pairwise Conclusion: This study confirms previous reports that changes in ocular dimensions are associated with body height in young children. Axial elongation (forming a prolate profile) occurs in myopic children of both genders at a young age.
Language	English
Publishing date	2022-07-22
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2587459-7
ISSN	1179-2752 ; 1179-2752
ISSN (online)	1179-2752
ISSN	1179-2752
DOI	10.2147/OPTO.S368672
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