Displaying publications 1 - 20 of 436 in total

Abstract:
Sort:
  1. Coene KL, Roepman R, Doherty D, Afroze B, Kroes HY, Letteboer SJ, et al.
    Am J Hum Genet, 2009 Oct;85(4):465-81.
    PMID: 19800048 DOI: 10.1016/j.ajhg.2009.09.002
    We ascertained a multi-generation Malaysian family with Joubert syndrome (JS). The presence of asymptomatic obligate carrier females suggested an X-linked recessive inheritance pattern. Affected males presented with mental retardation accompanied by postaxial polydactyly and retinitis pigmentosa. Brain MRIs showed the presence of a "molar tooth sign," which classifies this syndrome as classic JS with retinal involvement. Linkage analysis showed linkage to Xpter-Xp22.2 and a maximum LOD score of 2.06 for marker DXS8022. Mutation analysis revealed a frameshift mutation, p.K948NfsX8, in exon 21 of OFD1. In an isolated male with JS, a second frameshift mutation, p.E923KfsX3, in the same exon was identified. OFD1 has previously been associated with oral-facial-digital type 1 (OFD1) syndrome, a male-lethal X-linked dominant condition, and with X-linked recessive Simpson-Golabi-Behmel syndrome type 2 (SGBS2). In a yeast two-hybrid screen of a retinal cDNA library, we identified OFD1 as an interacting partner of the LCA5-encoded ciliary protein lebercilin. We show that X-linked recessive mutations in OFD1 reduce, but do not eliminate, the interaction with lebercilin, whereas X-linked dominant OFD1 mutations completely abolish binding to lebercilin. In addition, recessive mutations in OFD1 did not affect the pericentriolar localization of the recombinant protein in hTERT-RPE1 cells, whereas this localization was lost for dominant mutations. These findings offer a molecular explanation for the phenotypic spectrum observed for OFD1 mutations; this spectrum now includes OFD1 syndrome, SGBS2, and JS.
    Matched MeSH terms: Eye Proteins/genetics*
  2. Liza-Sharmini AT, Sharina YN, Dolaboladi AJ, Zaid NA, Azhany Y, Zunaina E
    Med J Malaysia, 2014 Feb;69(1):21-6.
    PMID: 24814624 MyJurnal
    INTRODUCTION: There is limited knowledge on primary angle closure (PAC) in Malays. Understanding the clinical presentation and progression of PAC in Malays is important for prevention of blindness in Southeast Asia.

    MATERIAL AND METHODS: A retrospective record review study was conducted on Malay patients seen in the eye clinic of two tertiary hospitals in Kelantan, Malaysia. Based on the available data, Malay patients re-diagnosed as primary angle closure suspect (PACS), primary angle closure (PAC), and primary angle closure glaucoma (PACG) based on the International Society Geographical Epidemiological classification. Clinical data was collected from initial presentation including the presence of acute primary angle closure until at least 5 years follow up. Progression was defined based on gonioscopic changes, vertical cup to disc ratio (VCDR), intraocular pressure (IOP) and Humphrey visual field (HVF) analysis. Progression and severity of PACG was defined based Hodapp-Parrish-Anderson classification on reliable HVF central 24-2 or 30-2 analysis.

    RESULTS: A total of 100 patients (200 eyes) with at least 5 years follow up were included. 94 eyes (47%) presented with APAC. During initial presentation, 135 eyes (67.5%) were diagnosed with glaucomatous changes with 91 eyes already blind. After 5 years of follow up, 155 eyes (77.5%) progressed. There was 4 times risk of progression in eyes with PAC (p=0.071) and 16 times risk of progression in PACG (p=0.001). Absence of laser peripheral iridotomy was associated with 10 times the risk of progression.

    CONCLUSION: Angle closure is common in Malays. Majority presented with optic neuropathy at the initial presentation and progressed further. Preventive measures including promoting public awareness among Malay population is important to prevent blindness.

    Study site: Eye clinic, Hospital Universiti Sains Malaysia and Hospital
    Raja Perempuan Zainab II
    Matched MeSH terms: Eye
  3. Jin-Poi T, Shatriah I, Khairy-Shamel ST, Zunaina E
    Clin Ophthalmol, 2013;7:839-42.
    PMID: 23674886 DOI: 10.2147/OPTH.S42122
    A decrease in the anterior capsule opening after cataract surgery has been observed in eyes with weakened lens zonules. It commonly occurs in diabetes mellitus, uveitis, pseudoexfoliation syndrome, high myopia, and elderly patients. Herein, we report the case of a middle-aged man with advanced retinitis pigmentosa who developed a rapid contraction of the anterior capsule after an uneventful phacoemulsification surgery that resulted in severe visual loss during the early postoperative period.
    Matched MeSH terms: Eye
  4. Vinuthinee N, Azreen-Redzal A, Juanarita J, Zunaina E
    Clin Ophthalmol, 2015;9:203-6.
    PMID: 25678769 DOI: 10.2147/OPTH.S74548
    A 5-year-old boy presented with right eye pain associated with tearing and photophobia of 1-day duration. He gave a history of playing with a river crab when suddenly the crab clamped his fingers. He attempted to fling the crab off, but the crab flew and hit his right eye. Ocular examination revealed a right eye corneal ulcer with clumps of fibrin located beneath the corneal ulcer and 1.6 mm level of hypopyon. At presentation, the Seidel test was negative, with a deep anterior chamber. Culture from the corneal scrapping specimen grew Citrobacter diversus and Proteus vulgaris, and the boy was treated with topical gentamicin and ceftazidime eyedrops. Fibrin clumps beneath the corneal ulcer subsequently dislodged, and revealed a full-thickness corneal laceration wound with a positive Seidel test and shallow anterior chamber. The patient underwent emergency corneal toileting and suturing. Postoperatively, he was treated with oral ciprofloxacin 250 mg 12-hourly for 1 week, topical gentamicin, ceftazidime, and dexamethasone eyedrops for 4 weeks. Right eye vision improved to 6/9 and 6/6 with pinhole at the 2-week follow-up following corneal suture removal.
    Matched MeSH terms: Eye Abnormalities; Eye Pain
  5. Suresh S, Nor-Masniwati S, Nor-Idahriani MN, Wan-Hazabbah WH, Zeehaida M, Zunaina E
    Clin Ophthalmol, 2012;6:147-50.
    PMID: 22291456 DOI: 10.2147/OPTH.S26844
    BACKGROUND: The purpose of this study was to evaluate the immunoglobulin (Ig) G avidity of serological toxoplasmosis testing in patients with ocular inflammation and to determine the clinical manifestations of ocular toxoplasmosis.

    METHODS: A retrospective review of all patients presenting with ocular inflammation to the Hospital Universiti Sains Malaysia, Kelantan, Malaysia between 2005 and 2009 was undertaken. Visual acuity, clinical manifestations at presentation, toxoplasmosis antibody testing, and treatment records were analyzed.

    RESULTS: A total of 130 patients with ocular inflammation were reviewed retrospectively. The patients had a mean age of 38.41 (standard deviation 19.24, range 6-83) years. Seventy-one patients (54.6%) were found to be seropositive, of whom five (3.8%) were both IgG and IgM positive (suggestive of recently acquired ocular toxoplasmosis) while one (0.8%) showed IgG avidity ≤40% (suggestive of recently acquired ocular toxoplasmosis) and 65 patients (50.0%) showed IgG avidity >40% (suggestive of reactivation of toxoplasmosis infection). Chorioretinal scarring as an ocular manifestation was significantly more common in patients with seropositive toxoplasmosis (P = 0.036). Eighteen patients (13.8%) were diagnosed as having recent and/or active ocular toxoplasmosis based on clinical manifestations and serological testing.

    CONCLUSION: Ocular toxoplasmosis is a clinical diagnosis, but specific toxoplasmosis antibody testing helps to support the diagnosis and to differentiate between reactivation of infection and recently acquired ocular toxoplasmosis.

    Matched MeSH terms: Eye
  6. Suraida AR, Ibrahim M, Zunaina E
    PLoS One, 2018;13(1):e0191134.
    PMID: 29324896 DOI: 10.1371/journal.pone.0191134
    OBJECTIVES: To compare the anterior ocular segment biometry among Type 2 diabetes mellitus (DM) with no diabetic retinopathy (DR) and non-proliferative diabetic retinopathy (NPDR), and to evaluate the correlation of anterior ocular segment biometry with HbA1c level.

    METHODS: A cross-sectional study was conducted in Hospital Universiti Sains Malaysia, Kelantan from November 2013 till May 2016 among Type 2 DM patients (DM with no DR and DM with NPDR). The patients were evaluated for anterior ocular segment biometry [central corneal thickness (CCT), anterior chamber width (ACW), angle opening distance (AOD) and anterior chamber angle (ACA)] by using Anterior Segment Optical Coherence Tomography (AS-OCT). Three ml venous blood was taken for the measurement of HbA1c.

    RESULTS: A total of 150 patients were included in this study (DM with no DR: 50 patients, DM with NPDR: 50 patients, non DM: 50 patients as a control group). The mean CCT and ACW showed significant difference among the three groups (p < 0.001 and p = 0.015 respectively). Based on post hoc result, there were significant mean difference of CCT between non DM and DM with NPDR (mean difference 36.14 μm, p < 0.001) and also between non DM and DM with no DR (mean difference 31.48 μm, p = 0.003). The ACW was significantly narrower in DM with NPDR (11.39 mm SD 0.62) compared to DM with no DR (11.76 mm SD 0.53) (p = 0.012). There were no significant correlation between HbA1c and all the anterior ocular segment biometry.

    CONCLUSION: Diabetic patients have significantly thicker CCT regardless of retinopathy status whereas ACW was significantly narrower in DM with NPDR group compared to DM with no DR. There was no significant correlations between HbA1c and all anterior ocular segment biometry in diabetic patients regardless of DR status.

    Matched MeSH terms: Anterior Eye Segment/pathology*
  7. Deva JP, Ngeow YF, Zin T
    Indian J Ophthalmol, 2023 Jun;71(6):2443-2447.
    PMID: 37322657 DOI: 10.4103/IJO.IJO_2894_22
    PURPOSE: This case-control study aims to examine possible associations of VSX1 exon3 gene variants with the development of keratoconus (KC) in Malaysian patients.

    METHODS: A case-control study was done on 42 keratoconus cases, 127 family member controls, and 96 normal controls.

    RESULTS: Three gene variants, p.A182A, p.P237P, and p.R217H showed significant associations with keratoconus (P < 0.05). While p.A182A and p.P227P were more prevalent than in the family and normal controls (OR 3.14-4.05), the reverse was observed with p.R217H (OR 0.086-1.59). With Haploview analysis, p.A182A and p.P237P were shown to be in linkage disequilibrium (LD) (LOD (logarithm of the odds score) score of 2.0, r2 of 0.957, and 95% confidence interval (CI) of 0.96-1.00).

    CONCLUSION: The study results suggest that the p.A182A and p.P237P variants could have contributed to the development of keratoconus in some Malaysians and that these two variants are likely to be co-inherited. In contrast, the p.R217H variant appeared to confer some protection against the development of keratoconus.

    Matched MeSH terms: Eye Proteins/genetics
  8. Thevi T, Zin MM
    International Eye Science, 2016;16:600-606.
    AIM: To see the causative factors, associations and outcomes of posterior capsule rupture (PCR). METHODS: A retrospective cohort study was done of all patients with PCR from 2007 to 2014 in Melaka Hospital. Associations between ocular comorbidities, lens related complications, surgeon grade, type of cataract surgery, whether done alone or in combination, with the occurrences of PCR were studied. The final visual outcome of cases with PCR was studied. RESULTS: PCR was the commonest intraoperative complication (n=623, 4.8%) among 12 846 patients. Ocular comorbidities and status of the lens did not cause PCR. Experience and seniority of surgeons were significantly associated with PCR. Medical officers had more PCRs than gazetting specialists (P=0.0000), who inturn had more PCRs than specialists (P=0.000). Each type of cataract surgery done was also significantly associated with PCR-phacoemulsification (phaco), phaco convert to extracapsular cataract extraction (ECCE) and intracapsular cataract extraction (ICCE) (P=0.000), lens aspiration (P=0.020), and ECCE (P=0.003). Specialists got good outcomes compared to trainees without PCR occurring (P=0.001) and also with PCR occurring (P=0.013). However, no difference was observed in the occurrence of PCR in complicated cases between specialists and trainees. Vision was compromised mainly by astigmatism following PCR. Impaired vision (P=0.000) and poor vision (P=0.000) were more than good vision. Poor vision was more in PCR compared to other complications.(P=0.000). CONCLUSION: PCR occurs in all types of cataract surgeries and is the main intraoperative complication causing poor vision. Good outcomes were significantly more when specialists got PCR compared to trainees. Junior surgeons should practice in wet labs and be given more cases. Copyright 2016 by the IJO Press.
    Matched MeSH terms: Eye
  9. Liza-Sharmini AT, Azlan ZN, Zilfalil BA
    Singapore Med J, 2006 Jan;47(1):14-9.
    PMID: 16397715
    Down syndrome was first described as Mongoloid children with European parentage. Although their facial features resemble Orientals or Asians, ocular findings have not been well-documented in Asians, especially Malaysians. Our aim was to identify the ocular findings of Malaysian children with Down syndrome.
    Matched MeSH terms: Eye Abnormalities/ethnology*; Eye Diseases/ethnology*
  10. Vinodh VP, Sellamuthu P, Harun RH, Zenian MS
    Med J Malaysia, 2014 Apr;69(2):89-91.
    PMID: 25241819 MyJurnal
    Intraorbital foreign body (IOFB) has been a rare phenomenon in the cases of gunshot wounds and always represents a dilemma in medical management. In Sabah, this scenario is becoming common as there is still certain population in the interiors who owns self made guns for hunting. They either present with self inflicted gunshot injuries or after being mistakenly shot while hunting. There are very few articles on this topic especially when it is located posteriorly in the orbit and occurs without visual impairment. This case reports the challenges faced in the management of the patient with a posteriorly located metallic IOFB. The appropriate management of the patient is discussed based on several international literatures. Author describes a 37 years old male farmer, who was referred from a nearby district hospital after he sustained gunshot injuries to his face and scalp. Urgent computed tomography (CT) scan showed that bullet pellets were at the left orbital floor, the left mandible and the left frontal bone. All bullet pellets were located extracranially only without intracranial involvement. Patient clinically does not have any neurologic deficit and without any visual impairment, thus he refused any surgical intervention. As there is no proper guideline in managing such cases, decision was made based on evidences from international literatures. It was concluded that metallic IOFB located in the posterior orbit may be conservatively managed with observation and regular follow-ups as they are well-tolerated and does not cause much impact on visual deterioration unless inflammation, infection, optic neuropathy or functional deficit occurs. This avoids unnecessary surgery and prevents risk of iatrogenic injury to the eye.
    Matched MeSH terms: Eye Foreign Bodies
  11. Azira NM, Zeehaida M
    Asian Pac J Trop Biomed, 2011 Apr;1(2):164-5.
    PMID: 23569750 DOI: 10.1016/S2221-1691(11)60018-X
    Ocular toxocariasis is prevalent among children. The symptoms and signs may mimic other ocular pathologies such as malignancies and other infectious diseases (such as toxoplasmosis and syphilis). We presented a case of progressive blurring of vision in a single eye of a 9-year-old boy. The presence of anti-toxocara antibody in serum samples helps to confirmation the diagnosis in our patient. Despite of treatment, the boy had lost his vision on the affected eye.
    Matched MeSH terms: Eye Infections, Parasitic/immunology; Eye Infections, Parasitic/parasitology*
  12. Thanigasalam T, Reddy SC, Zaki RA
    J Ophthalmic Vis Res, 2016 4 7;10(4):375-84.
    PMID: 27051481 DOI: 10.4103/2008-322X.158892
    PURPOSE: Cataract surgery is the most common intraocular surgery performed all over the world and has advanced technically in recent years. As in all surgeries, complications are unavoidable. Herein we report factors associated with complications and visual outcomes of cataract surgery.

    METHODS: This retrospective cohort study included data of 1,632 cataract surgeries performed from 2007 to 2010 which was obtained from the cataract registry of the Malaysian National Eye Database. Demographic features, ocular and systemic comorbidites, grade of surgeon expertise and duration of surgery, type of anesthesia, intraoperative and postoperative complications, and the type of intraocular lens were recorded. Best corrected visual acuities were compared before and after the operation.

    RESULTS: Mean patient age was 66.9 years with equal gender distribution. The majority of subjects had age related cataracts. Phacoemulsification was done faster than other surgeries, especially by specialist surgeons. History of prior ocular surgery and operations performed under general anesthesia were associated with greater complications. Phacoemulsification was associated with less complications and better visual outcomes. The age and etiology of cataract did not affect complications. Malays, absence of ocular comorbidities, left eyes and eyes operated under local anesthesia were more likely to experience more visual improvement. Gender, age, cause of cataract, systemic comorbidities and surgeon expertise as well as intra-and postoperative complications did not affect the visual outcomes.

    CONCLUSION: Phacoemulsification had good visual outcomes in cataract surgery. Duration of surgery, expertise of the surgeon and complications did not affect the visual outcomes.

    Matched MeSH terms: Eye
  13. Lim MN, Hussin NH, Othman A, Umapathy T, Baharuddin P, Jamal R, et al.
    Mol Vis, 2012;18:1289-300.
    PMID: 22665977
    The presence of multipotent human limbal stromal cells resembling mesenchymal stromal cells (MSC) provides new insights to the characteristic of these cells and its therapeutic potential. However, little is known about the expression of stage-specific embryonic antigen 4 (SSEA-4) and the embryonic stem cell (ESC)-like properties of these cells. We studied the expression of SSEA-4 surface protein and the various ESC and MSC markers in the ex vivo cultured limbal stromal cells. The phenotypes and multipotent differentiation potential of these cells were also evaluated.
    Matched MeSH terms: Eye Proteins/metabolism
  14. Muzaffar TST, Imran Y, Iskandar MA, Zakaria A
    Med J Malaysia, 2005 Jul;60 Suppl C:26-9.
    PMID: 16381279
    Femoral interlocking nailing requires fluoroscopic assistance for insertion of the nail and distal screws. In this study, scattered radiation to the eye and hand of the operating surgeon was measured during the procedure. Thermo-luminescent dosimeter (TLD) was used to quantify the dose received by the surgeon. The mean radiation exposure time during the procedure was 3.89 minutes. The mean scattered radiation doses to the hand and eye were 0.27 mSv and 0.09 mSv per procedure respectively. These very low doses have made a surgeon very unlikely to receive more than the recommended annual dose limit set by the National Council on Radiological Protection.
    Matched MeSH terms: Eye*
  15. Normalina M, Zainal M
    Med J Malaysia, 1998 Sep;53(3):239-44.
    PMID: 10968160
    A cross-sectional prevalence study amongst a nursing home elderly population was carried out at Rumah Sri Kenangan, Seremban, Negeri Sembilan between June 1995 until June 1996. A total of 204 cases of 60 years and older were examined in order to determine the ocular morbidity amongst them. It was found that 47.5% had low vision and 19.1% were legally blind. Cataract was found to be the leading cause of low vision and blindness occurring in 81.4% and 74.3% respectively. Glaucoma occurred in 1% of those who had low vision and none due to macular degeneration or diabetic retinopathy. The magnitude of visual impairment and blindness in this nursing home is high but is preventable and avoidable.
    Matched MeSH terms: Eye Diseases/epidemiology*
  16. Noradilah, S.A., Mohamd Kamel, A.G., Anisah, N., Noraina, A.R., Yusof, S.
    MyJurnal
    Acanthamoeba is a free-living protozoa which causes serious ocular problem. Acanthamoeba keratitis is becoming more prevalent amongst contact lens wearers and it can cause loss of vision and blindness if not treated properly. The objective of this research is to determine the effectiveness of gentamicin against six Acanthamoeba spp. isolates, of which three were clinical isolates (HS 6, HKL 95, HTH 73) and three environmental isolates (SMAL 7, SMAL 8, TTT 9). Cyst suspension from the chosen isolates were exposed to gentamicin. After 48 hours of incubation at temperature of 30°C and 37oC, each mixture was filtered and filtration membrane was put onto non-nutrient agar laid with Escherichia coli. The agar plates were incubated for three days at 30oC and 37oC and the plates were examined daily until day 14 to look for the presence of Acanthamoeba trophozoites under inverted microscope. The presence of trophozoites indicated the ineffectiveness of gentamicin. Gentamicin was found to be effective against Acanthamoeba cysts from all the test strains at both incubation temperatures. The minimum cysticidal concentration (MCC) mean value of gentamicin was 0.193 mg/mL at 30oC and 0.229 mg/mL at 37oC. So, we concluded that gentamicin has cysticidal potential towards Acanthamoeba.
    Matched MeSH terms: Eye
  17. Haslinda AR, Shatriah I, Azhany Y, Nik-Ahmad-Zuky NL, Yunus R
    Ophthalmic Plast Reconstr Surg, 2013 3 28;30(1):e13-5.
    PMID: 23531952 DOI: 10.1097/IOP.0b013e31828957ae
    Myositis is a rare unknown inflammatory disorder of the skeletal muscle tissue. Generalized inflammatory myopathies, polymyositis, and dermatomyositis have been reported during pregnancy. Isolated orbital myositis in pregnancy has not been previously described in the literature. The authors report a case of left isolated orbital myositis in a primigravida at 38 weeks gestation affecting the patient's left lateral rectus muscle. MRI of the orbit was consistent with the diagnosis. She showed remarkable clinical improvement with oral corticosteroids therapy.
    Matched MeSH terms: Eye Pain/diagnosis; Eye Pain/drug therapy
  18. Gasmelseed A, Yunus J
    Prog Biophys Mol Biol, 2014 Jan;114(1):8-12.
    PMID: 24239501 DOI: 10.1016/j.pbiomolbio.2013.10.004
    The interaction of a dipole antenna with a human eye model in the presence of a metamaterial is investigated in this paper. The finite difference time domain (FDTD) method with convolutional perfectly matched layer (CPML) formulation have been used. A three-dimensional anatomical model of the human eye with resolution of 1.25 mm × 1.25 mm × 1.25 mm was used in this study. The dipole antenna was driven by modulated Gaussian pulse and the numerical study is performed with dipole operating at 900 MHz. The analysis has been done by varying the size and value of electric permittivity of the metamaterial. By normalizing the peak SAR (1 g and 10 g) to 1 W for all examined cases, we observed how the SAR values are not affected by the different permittivity values with the size of the metamaterial kept fixed.
    Matched MeSH terms: Eye/anatomy & histology; Eye/cytology*; Eye/radiation effects*
  19. Teoh GH, Yow CS
    Med J Malaysia, 1982 Mar;37(1):7-10.
    PMID: 7121351
    A retrospective study of intraocular foreign bodies treated at the University Hospital over 10 years from 1970 - 1979 was carried out. Of the 48 cases reviewed, nine were anterior chamber foreign bodies while the rest were posterior segment foreign bodies. The anterior chamber foreign bodies had better visual prognosis as compared to the posterior segment foreign bodies. Most of the patients were young Chinese males and most of the injuries were due to accidents at work involving the 'hand hammer' (includes other implements used as a hammer).
    Matched MeSH terms: Eye Foreign Bodies/epidemiology*; Eye Foreign Bodies/therapy
  20. Rohela M, Jamaiah I, Yaw CC
    PMID: 17121289
    We are reporting a case of an eye lesion caused by an adult Brugia malayi. The patient was a 3-year-old Chinese boy from Kemaman District, Terengganu, Peninsular Malaysia. He presented with a one week history of redness and palpebral swelling of his right eye. He claimed that he could see a worm in his right eye beneath the conjunctiva. He had no history of traveling overseas and the family kept dogs at home. He was referred from Kemaman Hospital to the eye clinic of Hospital Tengku Ampuan Afzan, Kuantan, Pahang, Malaysia. On examination by the ophthalmologist, he was found to have a subconjunctival worm in his right eye. Full blood count revealed eosinophilia (10%). Four worm fragments, each about 1 cm long were removed from his right eye under general anesthesia. A thick blood smear stained with Giemsa was positive for microfilariae of Brugia malayi. A Brugia Rapid test done was positive. He was treated with diethylcarbamazine.

    Study site: Opthamolagy clinic, Hospital Tengku Ampuan Afzan
    Matched MeSH terms: Eye/parasitology*
Filters
Contact Us

Please provide feedback to Administrator (afdal@afpm.org.my)

External Links