MyMedR

Fulltext A case of trauma related Acanthamoeba keratitis

Kamel AG, Faridah H, Yusof S, Norazah A, Nakisah MA

Trop Biomed, 2004 Dec;21(2):135-8.

Acanthamoeba is an uncommon cause of keratitis but one of the most severe because of the prolonged and painful course of the disease and poor visual outcome. Although contact lens use is the principal risk factor, about 10% of cases occur following trauma and exposure to contaminated soil or water. Two cases of Acanthamoeba keratitis involving women contact lens wearers have previously been reported in Malaysia but this is the first time, a non contact lens related Acanthamoeba keratitis is reported. The case involved a 28 year old Indonesian male construction worker who had a trauma of the right eye during work. His eye was struck by sand and dust particles after which he quickly washed with water from an open tank at the construction site. He experienced pain, redness, glaring and blurring of vision of the right eye three days later. The diagnosis was missed at initial presentation but culture of the corneal scraping had proven Acanthamoeba as the aetiological agent. The history and clinical findings of this trauma related Acanthamoeba keratitis are briefly discussed.

Matched MeSH terms: Contact Lenses

First case of Acanthamoeba keratitis in Malaysia

Kamel AG, Norazah A

Trans R Soc Trop Med Hyg, 1995 11 1;89(6):652.

PMID: 8594684

Matched MeSH terms: Contact Lenses/adverse effects*

Fulltext Habits of contact lens wearers toward lens care in Malaysia

Bhandari M, Hung PR

Med J Malaysia, 2012 Jun;67(3):274-7.

PMID: 23082416 MyJurnal

The purpose to do this research was to find out the habits of contact lens wearers towards lens care in this country, and to evaluate the compliance of contact lens wearers.
METHODS: All respondents underwent an interview regarding questionnaire which was carried out at the Klang Valley and Sabah, Malaysia by trained bilingual optometrists. The questionnaire was obtained from a study by Yvonne Wu et al., 2010. The questionnaire included information about respondents' demographics, contact lens hygiene behaviors and attitudes toward lens care. Comparison between groups and certain factors of lens care were analyzed.
RESULTS: Within the 100 respondents, 74% were female. The majority used monthly disposable lens (53%, 53/100), 35% (35/100) wore daily lens, 3% (3/100) wore biweekly disposable lens, 8% (8/100) wore quarter-yearly (3 months) lens, and only a participant (1%) used conventional lenses. The major non-compliance aspect that found out from this research were poor lens case (46%), inadequate cleaning of lens before storing (38%) and wearers not remembering how often they were advised to return for an aftercare (24%).
CONCLUSION: The poor lens care hygiene, inadequate cleaning of lens before storing may due to lack of proper advice to the contact lens wearers during examination or lack of awareness of aftercare visit.

Matched MeSH terms: Contact Lenses*

Fulltext Contact lens--related corneal ulcer: a two-year review

Goh PP, Shamala R, Chandamalar S, Tai XY, National Eye Database Study Group

Med J Malaysia, 2010 Jun;65 Suppl A:120-3.

PMID: 21488471

To create a national registry of contact-lens related corneal ulcers (CLRCU) patients in Malaysia with the aim of detecting outbreaks, identifying pattern of causative organisms, determining patient demography, risk factors, wearing patterns and monitoring outcome of treatment. The CLRCU registry is an ongoing patient registry established in 2007 as a surveillance tool used by Malaysian Ministry of Health ophthalmology departments. Notification of patients clinically suspected of CLRCU was performed online through the National Eye Database (NED). Data collected included patient demography, contact lens type, causative organism and treatment outcome. During 2007-2008, a total of 202 patients were notified to the CLRCU registry with a mean age of 26.7 years (71.8% female). All registered patients wore soft contact lens and monthly disposable lenses were the most popular (83.5%). The majority of patients had bacterial CLRCU and the most common causative organism was Pseudomonas (79.7% of bacterial cases). No epidemics were identified during the period of data examination. Use of contact lenses, which is increasing during modern times, may lead to CLRCU as a severe complication. The CLRCU registry is an effective tool which uses a web-based notification system that allows quick and up to date reports of CLRCU cases. This provides the ability to monitor outbreaks of disease and identify important causative and associated factors of the disease which may be used to reduce future incidence.

Matched MeSH terms: Contact Lenses, Hydrophilic/adverse effects*

Fulltext Pseudophacocoele following blunt ocular trauma

Aziz S, Asokumaran T, Intan G

Med J Malaysia, 2011 Mar;66(1):64-5.

PMID: 23765148 MyJurnal

Blunt ocular trauma may result in expulsion of the intraocular lens in a patient who has undergone cataract surgery. This case report describes a patient who presented with an extrusion of intraocular lens following blunt ocular trauma post-operatively. The authors emphasise the importance of patient counselling and protection of the operated eye after surgery.

Matched MeSH terms: Lenses, Intraocular

Fulltext Knowledge and practice of contact lens wear and care among medical students of University of Malaya

Tajunisah I, Ophth M, Reddy SC, Phuah SJ

Med J Malaysia, 2008 Aug;63(3):207-10.

PMID: 19248691 MyJurnal

The knowledge related to contact lens wear and practice care of contact lenses among medical students of University of Malaya was assessed through a structured questionnaire. One hundred and twenty-one contact lens wearers participated in this study. Majority of contact lens wearers were females (106, 87.6%); the duration of contact lens wear varied from less than six months to two years or more; 53 (43.8%) cited cosmetic purpose for wearing contact lens; 16 (13.2%) were not removing their contact lenses prior to sleeping at night. Despite 107 (88.4%) were aware of complications of contact lens usage, only 102 (84.3%) were adhering strictly to proper hygiene and contact lens care; and 17 (14%) continued wearing in spite of eye symptoms. Forty seven (38.8%) students sought ophthalmic consultation for eye problems. Improper practice of contact lens wear and care even in educated users such as medical students could increase the risk of complications. Therefore, a need for more education to the consumers is desired.

Matched MeSH terms: Contact Lenses*

Fulltext Bilateral anterior chamber intraocular lenses dislocation in a patient with habitual eye rubbing

Poh EP, Fariza NN, Mariam I

Med J Malaysia, 2005 Aug;60(3):370-2.

PMID: 16379196

A 61-year-old Chinese man presented with bilateral posteriorly dislocated anterior chamber intraocular lenses (AC IOLs) one year after successful vitrectomy, removal of bilateral dislocated mature cataractous lenses and AC IOLs implantation. A thorough clinical evaluation revealed habitual eye rubbing as the only possible cause.

Matched MeSH terms: Lenses, Intraocular/adverse effects*

Fulltext Easy lens cleaning solution for laboratory microscopes

Pramanik T, Ghosh A, Roychowdhury P

Med J Malaysia, 2005 Mar;60(1):116.

PMID: 16250297

Matched MeSH terms: Lenses*

Fulltext Secondary intraocular lens implantation in University Hospital, Kuala Lumpur

Jaais F

Med J Malaysia, 1998 Sep;53(3):272-6.

PMID: 10968165

Secondary intraocular lens implantation after cataract surgery done in University Hospital between 1983 to 1993 were reviewed. Thirty three patients (37 eyes) underwent secondary intraocular lens implantation during this period. Twenty four eyes had secondary anterior chamber lens implantation while 13 had posterior chamber lens implantation. There was no case of secondary posterior scleral fixation lens implantation. Visual acuity of 6/9 or better was seen in 25 of 37 eyes (67%) in the series. Eyes seeing as good or better than before secondary implantation procedure were noted in 34 of 37 eyes (92%). Vision of 6/9 or better was seen in 9 of 13 eyes (70%) with posterior chamber implants and 16 of 24 eyes in (67%) with anterior chamber lenses. Complications including bullous keratopathy, uveitis and glaucoma were seen with anterior chamber implants of the rigid type resulting in poorer visual acuity than before the secondary procedure.

Matched MeSH terms: Lenses, Intraocular*

Fulltext Intraocular pressure variation following retrobulbar anaesthesia among the different sex, age and ethnic groups in Malaysia

Lee FN, Kong VY, Lee GP, Ho KH, Choon SC, Hoh HB

Med J Malaysia, 1999 Dec;54(4):438-41.

PMID: 11072460

A total of 114 patients (48 Chinese, 34 Malay and 32 Indian) undergoing extracapsular cataract extraction (ECCE) with intraocular lens implantation, were enrolled. All were given 3 ml of local anaesthetic (combination of equal amounts of lignocaine 2% and bupivacaine 0.5%) using retrobulbar technique. Intraocular pressure (IOP) was measured at different time intervals; before, immediately after and 5 minutes after injection with Honan balloon compression. Mean IOP increased by 5.0 mmHg immediately after injection (p < 0.001) and reduced to baseline level after 5 minutes of external compression. Although there were no statistical difference in terms of IOP variation between sex and age groups, Chinese patients demonstrated the highest IOP rise following retrobulbar anaesthesia. This is the first study to demonstrate the influence of race in the IOP response with Chinese subjects having the highest IOP rise.

Matched MeSH terms: Lenses, Intraocular*

Fulltext Crystal deposits in cornea from the use of vitamin C eye drops

Choong YY, Arumugam G

Med J Malaysia, 1999 Dec;54(4):526-7.

PMID: 11072476

There are a number of differential diagnoses for crystal deposits in the cornea. With the presence of a corneal epithelial defect, the differential diagnosis can be narrowed down to either infective causes or deposits from topical medications. This report describes a case of crystal deposits in the cornea from the use of Vitamin C eye drops.

Matched MeSH terms: Lenses, Intraocular

Fulltext Retained intraocular foreign bodies and visual prognosis

Tan PL

Med J Malaysia, 1980 Sep;35(1):58-60.

PMID: 7254000

3 cases of perforating injury with retention of intra-ocular foreign body are presented. Their clinical presentation, management and final visual results are discussed. Despite the generally poor prognosis associated with these injuries, some cases surprisingly have good visual results.

Matched MeSH terms: Contact Lenses

Fulltext The use of ultrasound in ocular biometry

Kuan BB, Lim TK

Med J Malaysia, 1984 Dec;39(4):280-4.

PMID: 6544933

Ultrasound measurement of ocular dimension is the chosen method for assessing axial length when determining dioptric power for intraocular lens. From the current results of 30 cases studied, the mean axial length ranges from 22 to 23 mm. Despite the limitation of the accuracy of the ultrasonic measurements with the 7.5 mHz transducer, the power of intraocular lens can. be determined satisfactorily in accordance with the knowledge of keratometric reading. Hence, high refractive errors could be avoided post-operatively.

Matched MeSH terms: Lenses, Intraocular

Fulltext Anterior chamber implantation at University Hospital, Kuala Lumpur

Lim TK

Med J Malaysia, 1984 Sep;39(3):205-9.

PMID: 6544921

50 cases of anterior chamber intraocular lens implantation at the University Hospital, Kuala Lumpur were studied. 80% of the cases achieved visual acuity of 6/9 or better. The percentage would be higher if cases with pre-existing pathology are excluded and the period of follow-up is longer. Complications, mainly minor and non sight-threatening, are discussed.

Matched MeSH terms: Lenses, Intraocular*

Fulltext Intraocular lens implant

Sukumaran K

Med J Malaysia, 1983 Dec;38(4):272-4.

PMID: 6599981

Matched MeSH terms: Lenses, Intraocular*

Does the chromagen blue filter lens affect the reading speed, accuracy and contrast sensitivity

Bhandari M, Wei Ern RL, Majumder C, Ho D

Med J Malaysia, 2019 02;74(1):30-33.

PMID: 30846659

PURPOSE: To determine the effects of ChromaGen blue filter lens in reading speed, accuracy and contrast sensitivity.

METHODS: A cross-over, randomised study was carried out on 40 individuals (11 males and 29 females) aged 21 to 30 years. The rate of reading and reading accuracy was calculated with and without ChromaGen blue filter lens in all subjects. Wilkins Rate of Reading Test was used to measure the rate of reading and reading accuracy. Contrast sensitivity was also evaluated by using with and without the ChromaGen blue filter lens.

RESULTS: The mean rate of reading with and without ChromaGen blue filter lens was 160.58±16.03 words per minute and 150.52±15.66 words per minute respectively, with significant difference of p<0.001. The mean of reading accuracy (words correctly read per minute) in subjects, with ChromaGen blue filter was 149.30±0.79 words and without using filter lens was 148.53±1.11 words and found to be significant (p<0.001). There was no significant difference in the contrast sensitivity between subjects with and without the ChromaGen blue filter lens (p=0.083). No significant correlation was noted between the reading speed with age, spherical equivalent, contrast sensitivity, and reading accuracy.

CONCLUSION: This study concludes that there was an increase of 6.68% in the rate of reading and improvement of 0.52% in accuracy among subjects with ChromaGen blue filter lens.

Matched MeSH terms: Contact Lenses*

Corneal thickness and morphology after orthokeratology of six-month lens wear among young Malay adults

Mohidin N, Mat Yacob A, Norazman FN

Med J Malaysia, 2020 09;75(5):538-542.

PMID: 32918423

BACKGROUND: Menicon Z night orthokeratology (OK) lenses was introduced in Malaysia in 2015 and to date there is no report on its effects on the cornea. The objective of this study was to examine short term changes in corneal thickness and morphology of endothelial cells in young Malay adults after wearing Menicon Z night OK lenses.

METHODS: Corneal thickness was measured at the central and mid-peripheral locations of 20 participants aged 22.45±1.19 years using Tomey SP-3000 A-scan ultrasonography. Endothelial images of the central and peripheral locations captured using Tomey EM-3000 specular microscope were noted. Corneal thickness, endothelial cell density (ECD), coefficient of variation in cell size (CV), and hexagonality (HEX) at baseline, 24 hours, three months and six months after treatment were noted and analysed using repeated measure analysis of variance.

RESULTS: Central corneal thickness decreased significantly over a three-month period (p=0.001) and stabilised thereafter. There were no significant changes in thickness in all peripheral areas measured (p>0.05), and in ECD, CV and HEX after the six-month period (p>0.05).

CONCLUSIONS: The current study showed that significant thinning of central cornea and none at the mid-periphery. OK lens wear with Menicon Z night lenses had no effects on corneal morphology over the six month period.

Matched MeSH terms: Lenses*

Some aspects of refractive errors in West Malaysia

Chandran S, Ooi Eu-sen V

Med J Malaya, 1971 Mar;25(3):193-7.

PMID: 4253246

Matched MeSH terms: Contact Lenses

Significance of intraocular lens power calculation

Singh M, Dahalan A

Br J Ophthalmol, 1987 Nov;71(11):850-3.

PMID: 3689737

A total of 94 patients underwent extracapsular cataract extraction and insertion of Sinsky style two-loop posterior chamber intraocular lenses. Forty-six eyes received a standard power IOL and 48 eyes were given a preoperatively calculated IOL. A significant difference was found in the two groups with regard to the postoperative refractive error and uncorrected visual acuity.

Matched MeSH terms: Lenses, Intraocular*

Chronic illness and sustainable careers: How individuals with multiple sclerosis negotiate work transitions in a middle-income country

Vijayasingham L, Jogulu U, Allotey P

Soc Sci Med, 2020 01;245:112699.

PMID: 31785425 DOI: 10.1016/j.socscimed.2019.112699

Reports of work change and transitions are common amongst individuals with chronic illnesses such as multiple sclerosis (MS). However, there is little research on the lived experience of these work transitions. The scarcity of this research is particularly evident within low-and-middle-income countries, where protection laws and resources such as anti-discrimination laws and reasonable work modifications may not exist or be well enforced. In this paper, we explore how and why individuals with MS seek and achieve work transitions in the structural context of Malaysia. We interviewed ten working individuals with MS (July-december 2015) using a joint hermeneutic phenomenology and constructivist grounded theory approach. Using a broad conceptual lens of 'sustainable careers', we examine their careers as a series of experiences, decisions, and events, paying attention to the influences of context, time, their personal levels of agency and sense of meaning. Participants described work transitions as early as within the first year of diagnosis, that were prompted by voluntary, involuntary and semi-voluntary reasons. Key aspects of the process of seeking new roles included an exploration of alternative roles and paths, and then acquiring, trialing/adapting and remaining engaged in their new roles. Participants identified the perception and experience of 'being unemployable', based on how their diagnosis and short-term symptoms were responded to by employers. Nevertheless, participants used various strategies and career resources to obtain and maintain meaningful work roles. However, success in obtaining or maintaining new roles were not equally achieved. This research draws attention to the cumulative economic disadvantage of a chronic illness diagnosis, even at milder and episodic stages. Furthermore, it reiterates the need for cohesive structural protection in low-and-middle-income countries to facilitate a more equal ability to remain economically resilient and capable of engaging in meaningful long-term careers when living with a chronic illness.

Matched MeSH terms: Lenses

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