Ng Kwang Sheng

@medic.usm.my

Doctor / Department of Ophthalmology and Visual Science, School of Medical Sciences
Department of Ophthalmology and Visual Science, School of Medical Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan.

Ng Kwang Sheng


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https://researchid.co/ngkwangsheng

RESEARCH, TEACHING, or OTHER INTERESTS

Ophthalmology
7

Scopus Publications

47

Scholar Citations

3

Scholar h-index

3

Scholar i10-index

Scopus Publications

  • Ten-year review of paediatric cataract surgery outcomes at a tertiary referral centre
    Medical Journal of Malaysia, 2026
  • Suprasellar Meningioma Mimicking Optic Neuritis Presentation – Challenges in Diagnosis
    Daniel Kai Phang Sen, KS Ng, NF Diana, Norzaliana Zawawi, Wan-Hazabbah Wan Hitam, Zunaina Embong
    Malaysian Journal of Medicine and Health Sciences, 2025
    The clinical presentation of suprasellar meningioma may resemble that of optic neuritis causing diagnostic dilemma. A 40-year-old female presented with progressive blurring of vision in the left eye associated with poor colour perception for 2 weeks duration. The left eye visual acuity was hand movement with positive relative afferent pupillary defect. Examination revealed impaired optic nerve function test and a significant reduction in the colour vision test. Fundoscopy showed a normal optic disc in both eyes. She was suspected to have retrobulbar optic neuritis based on the clinical presentation. She received Intravenous methylprednisolone 1 gram daily, however her visual acuity remained the same. Magnetic resonance imaging (MRI) showed features of suprasellar meningioma. She underwent tumour debulking and her final visual acuity improved to 6/6 after the surgery. The similarity in clinical presentations of optic neuritis and suprasellar meningioma created a diagnostic challenge, wherein MRI plays a crucial role in differentiation.
  • Refractive error and amblyopia among primary school children in remote islands of East Coast of Peninsular Malaysia
    Medical Journal of Malaysia, 2024
  • Evaluation of Retinal Nerve Fibre Layer Thickness and Choroidal Thickness in Parkinson Disease Patients
    Kwang Sheng Ng, Mohammad Hudzaifah-Nordin, Sathyapriya Tamilarsan Sarah, Wan Hitam Wan-Hazabbah, Abd Halim Sanihah
    Prague Medical Report, 2023
    To evaluate the retinal nerve fibre layer (RNFL) thickness and choroidal thickness (CT) in Parkinson disease (PD) patients. A comparative cross-sectional, hospital-based study. 39 PD and 39 controls were recruited, who were gender and age matched. Subjects that fulfilled the inclusion criteria underwent optical coherence tomography for evaluation of RNFL thickness and choroidal thickness (CT). There was significant reduction of RNFL thickness in average (adjusted mean 88.87 µm vs. 94.82 µm, P=0.001), superior (adjusted mean 110.08 µm vs. 119.10 µm, P=0.002) and temporal (adjusted mean 63.77 µm vs. 70.36 µm, P=0.004) in PD compared to controls. The central subfoveal CT was significantly thinner in PD compared to controls (adjusted mean 271.13 µm vs. 285.10 µm, P=0.003). In PD group, there was significant weak negative correlation between the duration of PD with average RNFL thickness (r=–0.354, P=0.027), moderate negative correlation between the duration of PD with central subfoveal CT (r=–0.493, P=0.001), and weak negative correlation between the stage of PD with central subfoveal CT (r=–0.380, P=0.017). PD group had significant thinner average, superior and temporal RNFL thickness and CT compared to controls.
  • Biomechanical System Versus Observational Rating Scale for Parkinson’s Disease Tremor Assessment
    Ping Yi Chan, Zaidi Mohd Ripin, Sanihah Abdul Halim, Muhammad Imran Kamarudin, Kwang Sheng Ng, Gaik Bee Eow, Kenny Tan, Chun Fai Cheah, Linda Then, Nelson Soong, Jyh Yung Hor, Ahmad Shukri Yahya, Wan Nor Arifin, John Tharakan, Muzaimi Mustapha
    Scientific Reports, 2019
    There is a lack of evidence that either conventional observational rating scale or biomechanical system is a better tremor assessment tool. This work focuses on comparing a biomechanical system and the Movement Disorder Society–sponsored revision of the Unified Parkinson’s Disease Rating Scale in terms of test-retest reliability. The Parkinson’s disease tremors were quantified by biomechanical system in joint angular displacement and predicted rating, as well as assessed by three raters using observational ratings. Qualitative comparisons of the validity and function are made also. The observational rating captures the overall severity of body parts, whereas the biomechanical system provides motion- and joint-specific tremor severity. The tremor readings of the biomechanical system were previously validated against encoders’ readings and doctors’ ratings; the observational ratings were validated with previous ratings on assessing the disease and combined motor symptoms rather than on tremor specifically. Analyses show that the predicted rating is significantly more reliable than the average clinical ratings by three raters. The comparison work removes some of the inconsistent impressions of the tools and serves as guideline for selecting a tool that can improve tremor assessment. Nevertheless, further work is required to consider more variabilities that influence the overall judgement.
  • An In-Laboratory Validity and Reliability Tested System for Quantifying Hand-Arm Tremor in Motions
    Ping Yi Chan, Zaidi Mohd Ripin, Sanihah Abdul Halim, John Tharakan, Mustapha Muzaimi, Kwang Sheng Ng, Muhammad Imran Kamarudin, Gaik Bee Eow, Jyh Yung Hor, Kenny Tan, Chun Fai Cheah, Nelson Soong, Linda Then, Ahmad Shukri Yahya
    IEEE Transactions on Neural Systems and Rehabilitation Engineering, 2018
    Despite the advancement of the tremor assessment systems, the current technology still lacks a method that can objectively characterize tremors in relative segmental movements. This paper presents a measurement system, which quantifies multi-degrees-of-freedom coupled relative motions of hand-arm tremor, in terms of joint angular displacement. In-laboratory validity and reliability tests of the system algorithm to provide joint angular displacement was carried out by using the two-degrees-of-freedom tremor simulator with incremental rotary encoder systems installed. The statistical analyses show that the developed system has high validity results and comparable reliability performances using the rotary encoder system as the reference. In the clinical trials, the system was tested on 38 Parkinson's disease patients. The system readings were correlated with the observational tremor ratings of six trained medical doctors. The moderate to very high clinical correlations of the system readings in measuring rest, postural and task-specific tremors add merits to the degree of readiness of the developed tremor measurement system in a routine clinical setting and/or intervention trial for tremor amelioration.
  • Anterior spinal cord syndrome as a rare complication of acute bacterial meningitis in an adult
    Kwang Sheng Ng, Sanihah Abdul Halim
    BMJ Case Reports, 2018
    Acute bacterial meningitis is not an uncommon central nervous system infection. In severe cases, it can be associated with various neurological or systemic complications. However, acute spinal cord dysfunction rarely occurs. We report a case of bacterial meningitis complicated with spinal cord infarction despite adequate treatment with antibiotics and corticosteroid therapy. He had residual paraplegia and was fully dependent in the activity of daily living.

RECENT SCHOLAR PUBLICATIONS

  • Primary Central Nervous System Lymphoma as a Masquerade of Uveitis: A Case Report of Ocular Involvement
    SZ Goh, KS Ng, WHW Hitam, S Suparmaniam, MH Nordin, SUEZ GOH, ...
    Cureus 18 (3) , 2026
    2026
  • Successful Repair of Glaucoma Drainage Device Tube Exposure With a Corneal Patch Graft and Double-Layer Amniotic Membrane: A Case Report
    SF Chee, KY Chong, K Haireen, E Zunaina, KS Ng, SF Chee, KY Chong, ...
    Cureus 17 (12) , 2025
    2025
  • Leber Hereditary Optic Neuropathy With Significant Visual Recovery: An MT-ND6 Mutation in a Malay Patient
    MA Ozir, MH Nordin, SE Hashim, S Adzahar, MA Ahmad, KS Ng, ...
    Cureus 16 (10) , 2024
    2024
  • Retinal Nerve Fibre Layer, Macular and Choroidal Thickness in Erectile Dysfunction Patients on Sildenafil.
    M Hudzaifah-Nordin, NK Sheng, SS Tamilarsan, J Muhammed, SB Ismail, ...
    Malaysian Journal of Medicine & Health Sciences 20 (4) , 2024
    2024
  • Evaluation of retinal nerve fibre layer thickness and choroidal thickness in Parkinson disease patients
    KS Ng, M Hudzaifah-Nordin, ST Sarah, WH Wan-Hazabbah, AH Sanihah
    Prague Medical Report 124 (4), 421-434 , 2023
    2023
    Citations: 2
  • Acute Blindness in the Elderly With Craniopharyngioma
    NK Sheng, WHW Hitam
    Cureus 14 (7) , 2022
    2022
    Citations: 3
  • Infiltration of Bilateral Optic Nerves in Burkitt Lymphoma: A Case Report
    NK Sheng, WHW Hitam, NA Masnon
    Cureus 14 (5) , 2022
    2022
    Citations: 1
  • Suprasellar Meningioma Mimicking Optic Neuritis Presentation–Challenges in Diagnosis
    DSK Phang, KS Ng, NF Diana, Z Norzaliana, WH Wan-Hazabbah, ...
    Scientific Reports, 21 , 2022
    2022
  • Biomechanical system versus observational rating scale for Parkinson’s disease tremor assessment
    PY Chan, Z Mohd Ripin, S Abdul Halim, MI Kamarudin, KS Ng, GB Eow, ...
    Scientific reports 9 (1), 8117 , 2019
    2019
    Citations: 10
  • Anterior spinal cord syndrome as a rare complication of acute bacterial meningitis in an adult
    KS Ng, SA Halim
    Case Reports 2018, bcr-2018-226082 , 2018
    2018
    Citations: 13
  • An in–laboratory validity and reliability tested system for quantifying hand–arm tremor in motions
    PY Chan, ZM Ripin, SA Halim, J Tharakan, M Muzaimi, KS Ng, ...
    IEEE Transactions on Neural Systems and Rehabilitation Engineering 26 (2 … , 2017
    2017
    Citations: 18

MOST CITED SCHOLAR PUBLICATIONS

  • An in–laboratory validity and reliability tested system for quantifying hand–arm tremor in motions
    PY Chan, ZM Ripin, SA Halim, J Tharakan, M Muzaimi, KS Ng, ...
    IEEE Transactions on Neural Systems and Rehabilitation Engineering 26 (2 … , 2017
    2017
    Citations: 18
  • Anterior spinal cord syndrome as a rare complication of acute bacterial meningitis in an adult
    KS Ng, SA Halim
    Case Reports 2018, bcr-2018-226082 , 2018
    2018
    Citations: 13
  • Biomechanical system versus observational rating scale for Parkinson’s disease tremor assessment
    PY Chan, Z Mohd Ripin, S Abdul Halim, MI Kamarudin, KS Ng, GB Eow, ...
    Scientific reports 9 (1), 8117 , 2019
    2019
    Citations: 10
  • Acute Blindness in the Elderly With Craniopharyngioma
    NK Sheng, WHW Hitam
    Cureus 14 (7) , 2022
    2022
    Citations: 3
  • Evaluation of retinal nerve fibre layer thickness and choroidal thickness in Parkinson disease patients
    KS Ng, M Hudzaifah-Nordin, ST Sarah, WH Wan-Hazabbah, AH Sanihah
    Prague Medical Report 124 (4), 421-434 , 2023
    2023
    Citations: 2
  • Infiltration of Bilateral Optic Nerves in Burkitt Lymphoma: A Case Report
    NK Sheng, WHW Hitam, NA Masnon
    Cureus 14 (5) , 2022
    2022
    Citations: 1
  • Primary Central Nervous System Lymphoma as a Masquerade of Uveitis: A Case Report of Ocular Involvement
    SZ Goh, KS Ng, WHW Hitam, S Suparmaniam, MH Nordin, SUEZ GOH, ...
    Cureus 18 (3) , 2026
    2026
  • Successful Repair of Glaucoma Drainage Device Tube Exposure With a Corneal Patch Graft and Double-Layer Amniotic Membrane: A Case Report
    SF Chee, KY Chong, K Haireen, E Zunaina, KS Ng, SF Chee, KY Chong, ...
    Cureus 17 (12) , 2025
    2025
  • Leber Hereditary Optic Neuropathy With Significant Visual Recovery: An MT-ND6 Mutation in a Malay Patient
    MA Ozir, MH Nordin, SE Hashim, S Adzahar, MA Ahmad, KS Ng, ...
    Cureus 16 (10) , 2024
    2024
  • Retinal Nerve Fibre Layer, Macular and Choroidal Thickness in Erectile Dysfunction Patients on Sildenafil.
    M Hudzaifah-Nordin, NK Sheng, SS Tamilarsan, J Muhammed, SB Ismail, ...
    Malaysian Journal of Medicine & Health Sciences 20 (4) , 2024
    2024
  • Suprasellar Meningioma Mimicking Optic Neuritis Presentation–Challenges in Diagnosis
    DSK Phang, KS Ng, NF Diana, Z Norzaliana, WH Wan-Hazabbah, ...
    Scientific Reports, 21 , 2022
    2022