Displaying publications 61 - 75 of 75 in total

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  1. Shahidatul-Adha M, Zunaina E, Liza-Sharmini AT, Wan-Hazabbah WH, Shatriah I, Mohtar I, et al.
    Ann Med Surg (Lond), 2017 Dec;24:25-30.
    PMID: 29062482 DOI: 10.1016/j.amsu.2017.10.003
    INTRODUCTION: Ocular tuberculosis (TB) encompasses a broad spectrum of clinical manifestations affecting different structures of the eye. It is caused by Mycobacterium tuberculosis, a great ancient organism that induces various types of diseases and unfavorable outcomes if unrecognized and not well treated.

    PURPOSE: To report the clinical profile of 34 ocular TB cases observed during 6 years period in Hospital Universiti Sains Malaysia (HUSM).

    METHOD: A retrospective review of medical records from 34 patients diagnosed with ocular TB in HUSM from January 2011 until December 2016.

    RESULTS: The mean age was 43 ± 14.6 years old. Both male and female affected in about 1:1 ratio. The majority of subjects were local Malays (91.2%). Risk factors included previous contact with pulmonary TB patients (38.2%), and patients with underlying diabetes mellitus (26.5%). Most patients showed normal chest radiography (79.4%). However they had positive Mantoux test (94.1%) and raised erythrocyte sedimentation rate (ESR) value (58.8%). Uveitis was the most common ocular manifestation of ocular TB (70.6%) while the rare ocular manifestations included optic perineuritis and optic neuritis, orbital apex syndrome, orbital cellulitis, sclerokeratitis, corneal ulcer and conjunctival abscess. All patients responded well to anti-TB treatment, but visual outcome was variable.

    CONCLUSIONS: This review shows the diverse entity of ocular TB spectrum in an endemic area. Good clinical response to anti-tuberculous therapy supported the presumed diagnosis of ocular TB in majority of the cases.

  2. Tai ELM, Kueh YC, Wan Hitam WH, Wong TY, Shatriah I
    PLoS One, 2018;13(2):e0191434.
    PMID: 29389952 DOI: 10.1371/journal.pone.0191434
    PURPOSE: Childhood obesity is associated with adult cardiometabolic disease. We postulate that the underlying microvascular dysfunction begins in childhood. We thus aimed to compare retinal vascular parameters between obese and non-obese children.

    METHODS: This was a cross-sectional study involving 166 children aged 6 to 12 years old in Malaysia. Ocular examination, biometry, retinal photography, blood pressure and body mass index measurement were performed. Participants were divided into two groups; obese and non-obese. Retinal vascular parameters were measured using validated software.

    RESULTS: Mean age was 9.58 years. Approximately 51.2% were obese. Obese children had significantly narrower retinal arteriolar caliber (F(1,159) = 6.862, p = 0.010), lower arteriovenous ratio (F(1,159) = 17.412, p < 0.001), higher venular fractal dimension (F(1,159) = 4.313, p = 0.039) and higher venular curvature tortuosity (F(1,158) = 5.166, p = 0.024) than non-obese children, after adjustment for age, gender, blood pressure and axial length.

    CONCLUSIONS: Obese children have abnormal retinal vascular geometry. These findings suggest that childhood obesity is characterized by early microvascular abnormalities that precede development of overt disease. Further research is warranted to determine if these parameters represent viable biomarkers for risk stratification in obesity.

  3. Syed NH, Zunaina E, Wan-Nazatul Shima S, Sharma M, Shatriah I
    Korean J Ophthalmol, 2022 Oct;36(5):452-462.
    PMID: 35989077 DOI: 10.3341/kjo.2022.0010
    MicroRNAs (miRNAs) are the small noncoding RNA molecules which regulate target gene expression posttranscriptionally. They are known to regulate key cellular processes like inflammation, cell differentiation, cell proliferation, and cell apoptosis across various ocular diseases. Due to their easier access, recent focus has been laid on the investigation of miRNA expression and their involvement in several conjunctival diseases. The aim of this narrative review is to provide understanding of the miRNAs and describe the current role of miRNAs as the mediators of the various conjunctival diseases. A literature search was made using PubMed, Scopus, and Web of Science databases for studies involving miRNAs in the conjunctival pathological conditions. Original articles in the last 10 years involving both human and animal models were included. Literature search retrieved 27 studies matching our criteria. Pertaining to the numerous literatures, there is a strong correlation between miRNA and the various pathological conditions that occur in the conjunctiva. miRNAs are involved in various physiological processes such as cell differentiation, proliferation, apoptosis, development, and inflammation by regulating various signaling pathways, genes, proteins, and mediators. Pterygium was the most studied conjunctival disease for miRNA involvement, whereas miRNA research in allergic conjunctivitis is still in its early stages. Our review provides deep insights into the various miRNAs playing an important role in the various conjunctival diseases. miRNAs do have the potential to serve as noninvasive biomarkers with diagnostic, prognostic, and therapeutic implications. However, multitudinous studies are required to validate miRNAs as the reliable biomarkers in conjunctival pathologies and its targeted therapy.
  4. Mun-Wei L, Aiman-Mardhiyyah MY, Hayati AA, Ikram IM, Tai ELM, Shatriah I
    Korean J Ophthalmol, 2023 Feb;37(1):42-48.
    PMID: 36549302 DOI: 10.3341/kjo.2021.0131
    PURPOSE: Macular edema, serous retinal detachment, and retinal pigment epithelial detachment have been reported in patients with nephrotic syndrome. However, there is limited data about macular thickness in children with nephrotic syndrome. The aim of this study was to compare the mean macular thickness in children with nephrotic syndrome and in a control group and to correlate it with visual acuity and level of proteinuria.

    METHODS: The comparative cross-sectional study included 66 children aged 6 to 17 years with nephrotic syndrome and healthy control seen in two tertiary centers in Malaysia. We recorded demographic data, as well as visual acuity, level of proteinuria, and the mean macular thicknesses in both groups. The mean macular thickness was measured using Stratus optical coherence tomography according to nine areas of the Early Treatment Diabetic Retinopathy Study map.

    RESULTS: The mean foveal thickness was 238.15 ± 22.98 µm for children with nephrotic syndrome and 237.01 ± 22.60 µm for the control group. There was no significant difference in the mean macular thickness between the groups (p = 0.843). A significant correlation with visual acuity was observed in the superior outer macula (r = -0.41, p = 0.019), the nasal outer macula (r = -0.41, p = 0.019), and the inferior outer macula (r = -0.40, p = 0.021). There was no significant correlation between the mean macular thickness and level of proteinuria (p = 0.338), although those with higher levels of proteinuria demonstrated a trend towards increased macular thickness.

    CONCLUSIONS: The mean macular thickness in children with nephrotic syndrome was similar to that of healthy children. A significant correlation between the mean thickness of the outer macular layer and the presenting visual acuity was observed. There was no correlation between the mean macular thickness and the level of proteinuria.

  5. Lai YS, Shatriah I, Lo YL, Koh KL, Kogilavaani J
    Cureus, 2024 Mar;16(3):e56955.
    PMID: 38665711 DOI: 10.7759/cureus.56955
    Choroidal melanoma with ciliary body involvement is rare, especially in young adults and Asians. Here, we report the case of a young, healthy Chinese woman who complained of decreased vision in the left eye for one week. Her ocular examination and imaging were suggestive of choroidal melanoma involving the ciliary body. The patient underwent enucleation of the left eye. Close monitoring was needed, as the involvement of the ciliary body in choroidal melanoma is associated with a high risk of metastasis.
  6. Mun-Wei L, Md Said H, Punitan R, Ibrahim M, Shatriah I
    Cureus, 2018 Dec 17;10(12):e3744.
    PMID: 30800554 DOI: 10.7759/cureus.3744
    Purpose To describe the demographics, indications, clinical outcomes and survival rate of penetrating keratoplasty in Malaysian children living in a suburban area, and discuss the literature on paediatric penetrating keratoplasty. Methodology A retrospective review of medical records was performed on children younger than 17 years of age who had undergone penetrating keratoplasty in Hospital Universiti Sains Malaysia from January 2008 to December 2017. We recorded demographic data, presenting visual acuity, indications, final visual acuity, and graft survival at 12 months into the postoperative period. Results Sixteen eyes of 14 children had penetrating keratoplasty. Mean age was 7.8 ± 5.9 years. Both genders were equally affected. The main indications were infective keratitis (56.25%), congenital corneal opacity (18.75%) and trauma (12.50%). There were 62.50% of patients who had a preoperative visual acuity worse than 6/60. Fifty percent had other combined procedures during the surgery, including lens aspiration, peripheral iridectomy, pupilloplasty and glaucoma tube implant. Best corrected visual acuity of 6/12 or better was achieved in 18.75% of patients. A hazy graft was noted in 68.75% of patients, and was attributed to graft rejection, glaucoma and graft failure. There was a statistically significant association between the presence of vascularized cornea, intraocular inflammation and combined surgery with survival rate of the graft at one-year postoperative period (p < 0.05). Conclusions Infective keratitis is the main indication for penetrating keratoplasty in our pediatric patients. Good visual outcome was documented in a small percentage of the patients. Amblyopia and hazy graft were the main barriers to success in this group of patients. Vascularized cornea, inflammation and combined surgery had significantly affected the survival rate of the grafts in our series.
  7. Kan KW, Wan Mohd MA, Nik-Ahmad-Zuky NL, Shatriah I
    Cureus, 2023 Mar;15(3):e35996.
    PMID: 37041894 DOI: 10.7759/cureus.35996
    INTRODUCTION: Pregnancy causes an increase in central corneal thickness (CCT) and a reduction in intraocular pressure (IOP), especially in the third trimester. However, there is very limited published data regarding CCT and IOP in gestational diabetes mellitus (GDM) on diet control. This study is aimed to compare the means of CCT and IOP between pregnant women with GDM on diet control, healthy pregnant women, and healthy non-pregnant women.

    METHODS: This is a comparative cross-sectional study. A total of 184 women were recruited and divided into the following three groups: 61 pregnant women with GDM on diet control, 63 healthy pregnant women, and 60 healthy non-pregnant women as control. All subjects have undergone ocular examination during their 36-40 weeks of gestation. CCT measurement was done using a specular microscope and IOP measurement using a non-contact tonometer. Data from the right eye were analyzed.

    RESULTS: The mean age was 32 (4.0) years in GDM on diet control, 29 (3.0) years in healthy pregnant women, and 27 (5.4) years in healthy non-pregnant women. The number of gravidas was 2.5 (0.8) in women with GDM on diet control and 2.3 (0.8) in healthy pregnant women. There was a significant difference (p<0.05) in the mean CCT in women with GDM on diet control compared to healthy pregnant and healthy non-pregnant women. The mean IOP is significantly lower in both pregnant women with GDM on diet control and healthy pregnant groups, compared to the healthy non-pregnant women group.

    CONCLUSION: Women with GDM showed significantly thicker mean CCT than healthy pregnant and non-pregnant women. The mean IOP is significantly lower in both pregnant women with GDM on diet control and healthy pregnant groups, compared to the healthy non-pregnant women group.

  8. Maqbool M, Syed NH, Rossi-Fedele G, Shatriah I, Noorani TY
    Odontology, 2023 Jul;111(3):531-540.
    PMID: 36309897 DOI: 10.1007/s10266-022-00762-0
    MicroRNAs (miRNAs) are short, 19-23 nucleotide non-coding RNA molecules that regulate gene expression by silencing or degrading the target mRNA gene. Since their discovery in the nineties of the last century, they have emerged as key inflammatory regulators. Inflammation induces the synthesis of various miRNAs that modulate the expression of multiple molecules involved in orchestrating the inflammatory response. This review aims to provide an insight into the role of miRNAs as potential biomarkers, mediators, and potential therapeutic targets of dental pulp inflammation. A literature search was conducted using the keywords; biogenesis of microRNA, human dental pulp cells, pulpitis, and inflammation in PubMed and Scopus index databases for all the published articles dealing with the role of miRNAs in pulp inflammation in the last 10 years. According to the literature, there is a clear correlation between miRNAs and several physiological events, as well as their role as mediators of innate immune response and inflammation in dental pulp cells. Our narrative review stipulates that numerous miRNAs play a key role in modulating inflammation, delaying or enhancing cell repair, cell differentiation, and survival in dental pulp diseases. However, further studies are required for the validation of miRNAs as reliable biomarkers in dental pulp pathology and their targeted therapy.
  9. Lim ZD, Pheng E, Min ETL, Van Rostenberghe H, Shatriah I
    PMID: 33916368 DOI: 10.3390/ijerph18073783
    Platelets are a primary source of pro- and anti-angiogenic cytokines. However, the evidence of their role in retinopathy of prematurity (ROP) is controversial. This retrospective study aimed to compare mean weekly platelet counts between infants with and without ROP over the first 6 weeks of life. A total of 93 infants matched by gestational age and birth weight were recruited (31 with ROP, 62 without ROP). Weekly mean platelet counts and other related risk factors were documented. The repeated measure analysis of variance (ANOVA) and the repeated measure analysis of covariance (ANCOVA) were used to compare mean platelet counts over time between the two groups, with and without adjusting for confounders. We found significant differences in the weekly mean platelet counts of infants with and without ROP over the first 6 weeks of life (p = 0.002). These differences disappeared after adjusting for covariates (p = 0.489). Lower mean platelet counts in ROP infants are not directly related to ROP, but rather to the presence of other risk factors for ROP, such as culture-proven sepsis, blood transfusion and bronchopulmonary dysplasia.
  10. Hasbi A, Shatriah I, Tai ELM, Rahim HA, Zamli AH
    Korean J Ophthalmol, 2024 Dec;38(6):450-460.
    PMID: 39434580 DOI: 10.3341/kjo.2024.0102
    PURPOSE: Worldwide, limited information is available on the psychosocial function and health-related quality of life (HRQoL) in children with congenital ptosis, nor the effect of corrective surgery on these parameters. This study aimed to evaluate the social anxiety and HRQoL of Malaysian children with primary simple unilateral congenital ptosis following ptosis surgery.

    METHODS: A prospective cohort study was conducted among children with primary simple unilateral congenital ptosis and their parent/guardian who attended three tertiary hospitals from 2022 to 2024. The patients and their parents/guardians answered Spence Children's Anxiety Scale-Social Anxiety and the PedsQL 4.0 Generic Core Scale, at the time of recruitment and 3 months after ptosis surgery.

    RESULTS: This study involved 45 children, of which 26 (57.8%) were female. At enrollment, 18 (40.0%) had severe ptosis, and 15 (33.3%) had amblyopia. All surgeries were successful, with a mean margin to reflex distance (MRD) 1 and mean intereye MRD1 difference of 4.07 ± 0.62 and 0.29 ± 0.46 mm, respectively. Significant improvements in both social anxiety and HRQoL of children and parent were observed following surgery (p < 0.001). A decrease in intereye MRD1 difference postoperatively was the only significant factor affecting social anxiety of children with ptosis following surgery (p < 0.001). Together with the presence of amblyopia (p < 0.001), the intereye MRD1 difference was found to have a significant impact on the improvement in HRQoL (p = 0.021). Age, sex, and education level of parent/guardians were found to significantly affect the change in social anxiety following ptosis surgery (p < 0.05), while the factor most associated with improvement of parental HRQoL was an improvement in the MRD1 of the ptotic eye (p < 0.001).

    CONCLUSIONS: Ptosis surgery significantly improved social anxiety and HRQoL in children with congenital ptosis and their parents/guardians. Psychosocial function should be a consideration when identifying indications for surgery in children with congenital ptosis.

  11. Rashid RA, Heidary F, Hussein A, Hitam WH, Rashid RA, Ghani ZA, et al.
    Burns, 2011 Feb;37(1):170-3.
    PMID: 20576358 DOI: 10.1016/j.burns.2010.05.019
    This study aims to describe the epidemiology of ocular burns and related injuries due to fireworks during the Aidil Fitri celebration on the East Coast of the Peninsular Malaysia. A prospective analysis of all patients with ocular burns and related injuries due to fireworks attended three tertiary hospitals in East Coast of Peninsular Malaysia during Aidil Fitri, which was from 10 September to 17 October 2008. We observed the demographic and injury characteristics, extent of the injuries and presenting visual symptoms. Thirty patients with 34 eyes with ocular burns and related injuries were identified. Patients ranged between 2 and 43 years of age. 70.00% of the patients were 12 years old and below. Of the 30 patients, 29 (96.67%) were male and the left eye was affected in 14 (46.70%). Thermal injuries accounted for 60.0% of the injuries whereas 40.0% were due to exploding firework. Burns to the eyelid and cornea (35.29%) were the most common injuries noted. Fifteen patients (50%) were bystanders whilst a majority of patients (96.67%) had no eye protection. At presentation, 15 (44.12%) eyes had a visual acuity of 6/6 to 6/9 in the injured eyes, while 3 out of 34 eyes (8.82%) had vision acuity 6/60 or worse. In conclusion, fireworks cause serious preventable ocular burns and related injuries especially in children who are the most affected age group. It affects mainly eyelid and anterior segment structures which result in moderate visual loss on presentation. Health education, public awareness and tighter legislation are essential preventive measures to limit the effect of fireworks to the public.
  12. Muzaliha MN, Nurhamiza B, Hussein A, Norabibas AR, Mohd-Hisham-Basrun J, Sarimah A, et al.
    Clin Ophthalmol, 2012;6:1527-33.
    PMID: 23055674 DOI: 10.2147/OPTH.S33270
    There is limited data in the literature concerning the visual status and skills in children with learning disabilities, particularly within the Asian population. This study is aimed to determine visual acuity and visual skills in children with learning disabilities in primary schools within the suburban Kota Bharu district in Malaysia.
  13. Othman K, Evelyn-Tai LM, Raja-Azmi MN, Julieana M, Liza-Sharmini AT, Tharakan J, et al.
    Int J Surg Case Rep, 2017;30:197-200.
    PMID: 28061417 DOI: 10.1016/j.ijscr.2016.12.010
    Hyphema and orbital apex syndrome occurring concurrently in a patient with herpes zoster ophthalmicus have not been reported previously. We present a case with these unique findings and discuss the pathogenesis of these conditions and their management.
  14. Wardati H J, Khadijah M, Nurul-Farhana M, Karimmah W, Lai YKI, Syahmi MR, et al.
    Cureus, 2024 Jul;16(7):e63712.
    PMID: 38966779 DOI: 10.7759/cureus.63712
    PURPOSE: This study aimed to evaluate the treatment efficacy, anatomical outcomes, and refractive outcomes of laser photocoagulation (LPC) and intravitreal ranibizumab (IVR) in the treatment of type I retinopathy of prematurity (ROP) at one-year follow-up.

    METHODS: This is a retrospective study on the treatment of type I ROP and aggressive ROP (A-ROP) using LPC or IVR in three Malaysian hospitals providing pediatric ophthalmology services from January 2019 to December 2021. Information on gestational age, birth weight, ROP zone and stage, and underlying comorbidities was collected. Parameters for evaluating treatment efficacy include the time taken to achieve complete regression, the regression rate, and the reactivation rate. The anatomical and refractive outcomes were evaluated at one year of adjusted age.

    RESULTS: This study included 92 eyes from 46 infants. Of these, 42 eyes received LPC as the initial treatment, while 50 eyes underwent IVR. A higher percentage of infants with cardiovascular disease were treated with IVR (66.7%) compared to LPC (40%) (p<0.05). However, there were no significant differences in gestational age, birth weight, respiratory distress syndrome, sepsis, or intraventricular hemorrhage between the two treatment groups (p>0.05). Infants treated with LPC had a higher regression rate than those treated with IVR, but they were also significantly more myopic and had worse best-corrected visual acuity (BCVA). Conversely, infants treated with IVR experienced a significantly higher reactivation rate compared to those treated with LPC. Logistic regression analysis showed no significant associations between gestational age, birth weight, plus disease, zone 1 ROP, and the choice of initial treatment with the reactivation of ROP.

    CONCLUSIONS: Both LPC and IVR effectively treat type I ROP in infants, with IVR yielding superior anatomical and refractive outcomes and LPC offering a lower reactivation rate. Understanding individual patient characteristics is crucial for treatment selection.

  15. Petzold A, Fraser CL, Abegg M, Alroughani R, Alshowaeir D, Alvarenga R, et al.
    Lancet Neurol, 2022 Dec;21(12):1120-1134.
    PMID: 36179757 DOI: 10.1016/S1474-4422(22)00200-9
    There is no consensus regarding the classification of optic neuritis, and precise diagnostic criteria are not available. This reality means that the diagnosis of disorders that have optic neuritis as the first manifestation can be challenging. Accurate diagnosis of optic neuritis at presentation can facilitate the timely treatment of individuals with multiple sclerosis, neuromyelitis optica spectrum disorder, or myelin oligodendrocyte glycoprotein antibody-associated disease. Epidemiological data show that, cumulatively, optic neuritis is most frequently caused by many conditions other than multiple sclerosis. Worldwide, the cause and management of optic neuritis varies with geographical location, treatment availability, and ethnic background. We have developed diagnostic criteria for optic neuritis and a classification of optic neuritis subgroups. Our diagnostic criteria are based on clinical features that permit a diagnosis of possible optic neuritis; further paraclinical tests, utilising brain, orbital, and retinal imaging, together with antibody and other protein biomarker data, can lead to a diagnosis of definite optic neuritis. Paraclinical tests can also be applied retrospectively on stored samples and historical brain or retinal scans, which will be useful for future validation studies. Our criteria have the potential to reduce the risk of misdiagnosis, provide information on optic neuritis disease course that can guide future treatment trial design, and enable physicians to judge the likelihood of a need for long-term pharmacological management, which might differ according to optic neuritis subgroups.
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