Displaying publications 61 - 80 of 97 in total

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  1. Kee QT, Abd Rahman MH, Mohamad Fadzil N, Mohammed Z, Shahar S
    BMC Res Notes, 2021 Oct 24;14(1):395.
    PMID: 34689826 DOI: 10.1186/s13104-021-05813-3
    OBJECTIVE: Near visual impairment (VI) is a common disability in an aging population. Near vision is crucial in activity of daily living including reading, smartphone and computer use and meal preparation. This study was conducted to determine the association between near visual acuity (VA) and contrast sensitivity (CS) with activity of daily living (ADL) among visually impaired older adults.

    RESULTS: A total of 208 participants aged  ≥  60 were recruited from the population-based longitudinal study on neuroprotective model for healthy longevity. Habitual near VA and CS were measured using Lighthouse near VA chart and Pelli-Robson CS chart, respectively. Lawton instrumental activities of daily living (IADL) was used to assess ADL. There are 41.8% participants with near visual impairment and 28.7% among them had IADL disability. Independent t test showed significant lower mean IADL score among visually impaired participants [t(206)  =  2.03, p  =  0.04]. IADL score significantly correlated with near VA (r  =   - 0.21, p  =  0.05) but not with CS (r  =   - 0.14, p = 0.21). Near VA (B  =   - 0.44, p  =  0.03) and age (B  =   - 0.07, p  =  0.01) significantly predicted IADL. The findings show poorer VA renders higher IADL disability, which may necessitate interventions to improve ADL among visually impaired older adults.

    Matched MeSH terms: Vision Disorders
  2. Janaki, V., Rosdinom, R., Hatta, S.
    Medicine & Health, 2015;10(2):146-150.
    MyJurnal
    This case report highlights Charles Bonnet Syndrome as a precursor to the development of major neurocognitive disorder due to Alzheimer’s disease in the elderly with visual impairment and the possible differential diagnoses that could be considered. We report a case of an elderly lady with no known previous medical illness, who presented for the first time to the psychiatric clinic with complex visual hallucinations consisting of well-formed images of people and inanimate objects of long standing duration of 18 months. About a year later, there was emergence of cognitive impairment which progressed gradually accompanied by other psychotic symptoms such as auditory hallucinations and persecutory delusions. There were no affective or obsessional symptoms. She had poor insight towards her illness. Ophthalmological examination revealed significant reduction in bilateral visual acuity. Otherwise, physical examination was unremarkable. She received inpatient treatment with Rivastigmine patch 4.6 mg/24 hours and Zydis 10 mg noctre. Her cognitive impairment and psychotic symptoms gradually improved over a period of 2 weeks upon commencing treatment and on subsequent follow-ups at outpatient clinic. She had also gained some insight into her illness. Charles Bonnet syndrome could be a possible precipitating factor and precursor to the development of major neurocognitive disorder due to Alzheimer’s disease in the elderly with visual impairment which is often overlooked or misdiagnosed and hence under reported.
    Study site: Psychiatric clinic, Pusat Perubatan Universiti Kebangsaan Malaysia (PPUKM), Kuala Lumpur, Malaysia
    Matched MeSH terms: Vision Disorders
  3. Hassan M, Tajunisah I
    Lancet, 2011 Feb 5;377(9764):504.
    PMID: 21255827 DOI: 10.1016/S0140-6736(10)60677-0
    Matched MeSH terms: Vision Disorders/etiology*
  4. Hasan S, B Basri H, P Hin L, Stanslas J
    Pak J Med Sci, 2013 May;29(3):859-62.
    PMID: 24353644
    Encephalitis has been included in the causes of optic neuritis, but post encephalitic optic neuritis has been rarely reported. Majority of the cases of optic neuritis are either idiopathic or associated with multiple sclerosis, especially in western countries. This is very important in the Asian population where the incidence and prevalence of multiple sclerosis is not as high as in the Western countries. Although post infectious optic neuritis is more common in children, it can also be found in adults and is usually seen one to three weeks after a symptomatic infective prodrome. Here, we present a case of a 48 year-old-male who developed optic neuritis following viral encephalitis. His first presentation was with severe headache of two weeks duration. Viral encephalitis was diagnosed and treated. The patient presented again three weeks later with right eye pain and other features typical of optic neuritis. Corticosteroid therapy facilitated prompt recovery. Optic neuritis is an uncommon manifestation of encephalitis. It is important that both doctors and patients remain aware of post infectious cause of optic neuritis, which would enable a timely diagnosis and treatment of this reversible cause of vision loss.
    Matched MeSH terms: Vision Disorders
  5. Hasan AN, Mustapha M, Wan HAHW
    Cesk Slov Oftalmol, 2024;80(Ahead of print):1-5.
    PMID: 38413229 DOI: 10.31348/2024/1
    AIMS: We present the clinical spectrum, the initial clinical presentation with management trends in treating 14 Vogt-Koyanagi-Harada (VKH) disease cases in a tertiary center in the Northern part of Malaysia.

    CASE SERIES: There were 14 cases of Vogt-Koyanagi-Harada (VKH) disease retrospectively reviewed over five years (from 2015 to 2020). The mean age at presentation was 37.7 years (range 21-64 years), with female predominance (85.7%). All cases presented with acute uveitic stage and bilateral eye involvement. Of them, 11 (78.6%) were probable VKH, and three (21.4%) were incomplete VKH. All patients attended with acute panuveitis at first presentation. The main posterior segment involvement was disc edema in 57.1% (16 out of 28 eyes) and exudative retinal detachment (ERD) in 35.7% (10 out of 28 eyes). Most of them presented with blindness (3/60 and worse) and moderate visual impair- ment (6/18-6/60); 35.71% each, followed by mild visual impairment (6/12-6/18), and severe visual impairment (6/60-3/60); 7.1% each. Ten patients (71.4%) required combination second-line immunomodulatory treatment during subsequent visits, and only four patients (28.6%) responded well to corticosteroid therapy. Most of the cases achieved no visual impairment (64.3%), followed by mild visual impairment (21.4%) and moderate visual impairment (14.3%), and none were severe or blind at the end of follow-up.

    CONCLUSION: VKH is a potentially blinding illness if there is inadequate control of the disease in the acute stage. Most of our patients achieved good visual outcomes with early immunomodulatory treatment and systemic corticosteroids.

    Matched MeSH terms: Vision Disorders
  6. Harithasan D, Mukari SZS, Ishak WS, Shahar S, Yeong WL
    Int J Geriatr Psychiatry, 2020 04;35(4):358-364.
    PMID: 31736109 DOI: 10.1002/gps.5237
    OBJECTIVES: The objective of this study was to evaluate the relationship between sensory impairment (hearing loss only, vision loss only, and dual sensory impairment [DSI]) and depression, loneliness, quality of life, and cognitive performance in older adults.

    METHODS: A total of 229 community-dwelling older adults aged 60 years or older participated in this study. Variables were measured using the Geriatric Depression Scale (GDS-15), Revised University of California at Los Angeles Loneliness Scale (R-UCLA), Satisfaction with Life Scale (SWLS), and Mini-Mental State Examination (MMSE).

    RESULTS: There was an independent association between DSI and quality of life (P < .05) and between DSI and hearing loss alone and cognitive function (P < .05) in older adults. In addition, higher education was associated with better quality of life and cognitive function.

    CONCLUSIONS: DSI is a significant factor affecting the quality of life and cognitive function in older adults. Sociodemographic factors such as education play an important role in improving quality of life and cognitive function. Thus, increasing the awareness of this disability is important to ensure that older adults receive the necessary support services and rehabilitation to improve their level of independence.

    Matched MeSH terms: Vision Disorders/complications*; Vision Disorders/epidemiology; Vision Disorders/psychology
  7. Haliza A, Md Muziman Syah M, Norliza M
    Malays Fam Physician, 2010;5(2):95-8.
    PMID: 25606195 MyJurnal
    PURPOSE: The objective of this study was to determine the prevalence of poor visual acuity, colour blindness and visual field defect of new Malaysian drivers.

    METHODS: A total of 3717 new drivers (50.2% males and 49.8% females) age 19±6 years, voluntarily participated in this study. Standard optometric apparatus such as LogMAR Charts, Ishihara plates and HandHeld Bernell Perimeter were used and standard procedures were applied.

    RESULTS: The visual examination showed 6.7% (n=250) of subjects achieved less than 0.3 LogMAR with better eye whilst 2.2% (n=83) had failed the Ishihara Test (2.1% males and 0.1% females). Most of the affected drivers were deutranopia. Only 2094 subjects had their visual field using a mobile Handheld Bernell Perimeter. 1.72% (n=36) subjects have less than 120 degrees of peripheral field of vision.

    CONCLUSIONS: The visual status among new Malaysian drivers needs to be taken seriously to ensure safe driving. Other factors such as colour vision and visual field screening have to be considered seriously when evaluating the visual performance of a driver. Good visual performance is indispensible for safe driving.
    Matched MeSH terms: Vision Disorders
  8. Goh PP, Abqariyah Y, Pokharel GP, Ellwein LB
    Ophthalmology, 2005 Apr;112(4):678-85.
    PMID: 15808262 DOI: 10.1016/j.ophtha.2004.10.048
    To assess the prevalence of refractive error and visual impairment in school-age children in Gombak District, a suburban area near Kuala Lumpur city.
    Matched MeSH terms: Vision Disorders/epidemiology*
  9. Ghanimi Zamli AK, Chew-Ean T, Wan Hitam WH
    Cureus, 2019 Apr 11;11(4):e4436.
    PMID: 31245223 DOI: 10.7759/cureus.4436
    Altitudinal visual field defect is a rare presentation of retrochiasmal lesion especially when bilateral visual fields were affected. In fact, bilateral inferior altitudinal visual field defect (BIAVFD) usually occurred in patients who survived a gunshot injury to the occipital lobe or as a direct trauma to the brain. We report a rare case of BIAVFD secondary to occipital meningioma. A high index of suspicion enables timely investigation and diagnosis when dealing with atypical presentation of intracranial meningioma.
    Matched MeSH terms: Vision Disorders
  10. Foo SK, Cubbidge RP, Heitmar R
    Eur J Ophthalmol, 2021 Jul;31(4):1870-1876.
    PMID: 32468855 DOI: 10.1177/1120672120926455
    BACKGROUND: Numerous fast threshold strategies have been developed in perimetry which use maximum likelihood approaches to estimate the threshold. A recent approach to threshold estimation has been developed estimating the threshold from a limited number of test points which further reduces examination time. This strategy, SPARK, has not been compared to the SITA strategy. The aim of this study was to compare SPARK with SITA in a normal cohort to evaluate within and between strategy agreement in threshold estimates.

    METHODS: A total of 83 normal subjects each underwent two visual field examinations with SITA and SPARK on two separate occasions on a randomly selected eye. The eye examined and the order of strategy examined first was randomised but remained constant over the two perimetry visits.

    RESULTS: Visual field examination with SPARK Precision was on average 33% faster than SITA Standard. A positive correlation between group mean sensitivities of SITA Standard and SPARK Precision (rho = 0.713, p 

    Matched MeSH terms: Vision Disorders
  11. Fairuz Mohd Nordin, Khairun Najah binti Hasrin, Mohd Zaki Awg Isa, Amalina Othman, Zurin Firdawani Yacob
    MyJurnal
    This study aims to determine the refractive error status of Orang Asli children and Malay-Jawa children in Kuala Langat, Selangor. Visual acuity was measured using LEA chart, followed by dry static retinoscopy which the testing eye fogged with 2.00D, and the contralateral eye fogged with 6.00D to determine the refractive errors. The inclusion criteria encompassed all children in the selected village. The exclusion criteria included children who were already on ophthalmology follow-up for known ocular conditions and refused visual acuity assessment or eye examination. In total, 103 ‘Orang Asli’ and 107 normal population children aged 3 to 13 years received refractive assessments. Approximately 18% of reported cases were myopia, 43% were hyperopia, while 39% were emmetropia. Results showed that the ‘Orang Asli’ population was more hyperopic than the Malay-Jawa (U = 4893.500, P > 0.05, r = 0.14). However, both groups were found more hyperopic compared to myopic conditions. In conclusion, both Orang Asli and Malay-Jawa in Kuala Langat, Selangor are more hyperopic and less myopic. This study suggests that refractive error screening is important for preventing visual impairment among children in rural areas.
    Matched MeSH terms: Vision Disorders
  12. Fadzli F, Ramli N, Ramli NM
    Clin Radiol, 2013 Oct;68(10):e538-51.
    PMID: 23932674 DOI: 10.1016/j.crad.2013.05.104
    Visual field defects are a conglomerate of patterns of visual impairment derived from diseases affecting the optic nerve as it extends from the globe to the visual cortex. They are complex signs requiring perimetry or visual confrontation for delineation and are associated with diverse aetiologies. This review considers the chiasmatic and post-chiasmatic causes of visual disturbances, with an emphasis on magnetic resonance imaging (MRI) techniques. Newer MRI sequences are considered, such as diffusion-tensor imaging. MRI images are correlated with perimetric findings in order to demonstrate localization of lesions in the visual pathway. This may serve as a valuable reference tool to clinicians and radiologists in the early diagnostic process of differentiating causes of various visual field defects in daily practice.
    Matched MeSH terms: Vision Disorders/diagnosis; Vision Disorders/pathology
  13. Eu-sen VO
    Med J Malaya, 1969 Sep;24(1):18-20.
    PMID: 4243836
    Matched MeSH terms: Vision Disorders/etiology
  14. Embong M, Satgunasingam N, Rejab SM, Singh H
    Med J Malaysia, 1981 Mar;36(1):29-36.
    PMID: 7321934
    Matched MeSH terms: Vision Disorders/drug therapy*
  15. Eldem B, Lai TYY, Ngah NF, Vote B, Yu HG, Fabre A, et al.
    Graefes Arch Clin Exp Ophthalmol, 2018 May;256(5):963-973.
    PMID: 29502232 DOI: 10.1007/s00417-017-3890-8
    PURPOSE: To describe intravitreal ranibizumab treatment frequency, clinical monitoring, and visual outcomes (including mean central retinal thickness [CRT] and visual acuity [VA] changes from baseline) in neovascular age-related macular degeneration (nAMD) in real-world settings across three ranibizumab reimbursement scenarios in the Middle East, North Africa, and the Asia-Pacific region.

    METHODS: Non-interventional multicenter historical cohort study of intravitreal ranibizumab use for nAMD in routine clinical practice between April 2010 and April 2013. Eligible patients were diagnosed with nAMD, received at least one intravitreal ranibizumab injection during the study period, and had been observed for a minimum of 1 year (up to 3 years). Reimbursement scenarios were defined as self-paid, partially-reimbursed, and fully-reimbursed.

    RESULTS: More than three-fourths (n = 2521) of the analysis population was partially-reimbursed for ranibizumab, while 16.4% (n = 532) was fully-reimbursed, and 5.8% was self-paid (n = 188). The average annual ranibizumab injection frequency was 4.1 injections in the partially-reimbursed, 4.7 in the fully-reimbursed and 2.6 in the self-paid populations. The average clinical monitoring frequency was estimated to be 6.7 visits/year, with similar frequencies observed across reimbursement categories. On average, patients experienced VA reduction of -0.7 letters and a decrease in CRT of -44.4 μm. The greatest mean CRT change was observed in the self-paid group, with -92.6 μm.

    CONCLUSIONS: UNCOVER included a large, heterogeneous ranibizumab-treated nAMD population in real-world settings. Patients in all reimbursement scenarios attained vision stability on average, indicating control of disease activity.

    Matched MeSH terms: Vision Disorders/diagnosis; Vision Disorders/drug therapy*; Vision Disorders/physiopathology
  16. Chung KM, Mohidin N, Yeow PT, Tan LL, O'Leary D
    Optom Vis Sci, 1996 Nov;73(11):695-700.
    PMID: 8950751
    We performed a vision screening of 1883 Chinese schoolchildren from 4 schools around Kuala Lumpur in June 1990. The group contained 1083-males and 800 females. Visual acuity, refractive error, oculomotor balance, and axial length were measured. The prevalence of myopia in Chinese schoolchildren was found to be 37% in the 6- to 12-year age group and 50% in the 13- to 18-year age group. Approximately 63% of the sample had unaided visual acuity of 6/6 or better and 24% had unaided acuity of 6/12 or worse. Six hundred twenty-five students (33%) failed the vision screening test and were referred for further examinations. The group which failed the vision screening test and had the highest rate of referral (46%) was the 11- to 12-year-old age group. The most common visual disorder was uncorrected myopia, accounting for 38% of the referrals (235 students). Only 26% of the sample were wearing a spectacle correction.
    Matched MeSH terms: Vision Disorders/epidemiology*; Vision Disorders/physiopathology; Vision Disorders/prevention & control
  17. Chow SY, Draman N, Teh WM, Azhany Y
    Malays Fam Physician, 2017;12(3):42-46.
    PMID: 29527282 MyJurnal
    Visual loss is a common presenting complaint in primary care. We present a case of recurrent transient visual loss in a middle aged woman. Her funduscopy showed bilateral optic disc swelling. We have highlighted the differentiation of bilateral optic disc swelling at the primary care level as the management differs according to the diagnosis.
    Matched MeSH terms: Vision Disorders
  18. Chong PK, Loo AV, Alagaratnam JV
    Med J Malaysia, 2007 Oct;62(4):343-4.
    PMID: 18551944 MyJurnal
    We report a three year follow up of a 35-year-old Indian gentleman who presented with sudden, painless blurring of left (L) eye vision with initial visual acuity (VA) of 6/60. Fundoscopy revealed (L) vitreous haemorrhage and subsequently confirmed a (L) inferotemporal capillary haemangioma. The adjacent area of capillary haemangioma was treated with barricade argon laser photocoagulation to prevent progression of exudative retinal detachment inferiorly. Subsequent follow up showed mild regression of capillary haemangioma with maintenance of (L) eye vision at 6/9.
    Matched MeSH terms: Vision Disorders/diagnosis*; Vision Disorders/physiopathology
  19. Chong AW, Prepageran N, Rahmat O, Subrayan V, Jalaludin MA
    Ear Nose Throat J, 2011 Feb;90(2):E13.
    PMID: 21328215
    We report the rare occurrence of bilateral asymmetrical mucoceles of the paranasal sinuses that resulted in a unilateral orbital complication. The patient was a 47-year-old woman who presented with complaints of diplopia, blurred vision, and protrusion of her right eye that had progressed over a period of several months following an upper respiratory tract infection. Computed tomography detected the presence of two large, asymmetrical mucoceles. The lesion on the right involved the frontal and ethmoid sinuses, and the one on the left involved the ethmoid sinus. The mucoceles were locally expansile and had eroded the surrounding bony structures on the right. The expansile nature of the right-sided mass had displaced the right orbit, which was the cause of the vision deterioration. Transnasal endoscopic surgery was performed to excise and marsupialize the mucoceles. This modality was preferred over conventional open surgery because it affords good visualization, it is safe, and it is a less morbid procedure. The patient's recovery was uneventful, and she was discharged home on the third postoperative day. On continuing follow-up, her vision had improved, her intraocular pressure had returned to normal, and her orbits were in their normal position. Based on our literature search, no case of bilateral frontal and ethmoid sinus mucoceles has been previously reported.
    Matched MeSH terms: Vision Disorders/etiology*
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