MyMedR

Fulltext Orbital myxoma--an unusual cause of inferoorbital mass

Ting SL, Koay CL, Ngo CT, Chieng LL, Chua CN

Med J Malaysia, 2010 Sep;65(3):224-6.

PMID: 21939174

To describe a case of isolated infraorbital mass which had been present for the past 9 years in a young woman. Despite the size, the mass was successfully excised in total.

Fulltext The use of preserved bovine pericardium for emergency temporizing graft in corneal perforation

Koay AC, Yew YH, Ngo CT, Loo VP, Intan G, Chua CN

Med J Malaysia, 2008 Dec;63(5):421-2.

PMID: 19803308 MyJurnal

Corneal perforation is an ocular emergency that requires early intervention to avoid permanent visual loss from endophthalmitis or irreversible structural changes. Although tectonic keratoplasty is the best choice for patching a large perforation, a donor cornea is not always immediately available. Consequently, an alternative material is required while awaiting a donor cornea. We report the use of preserved bovine pericardium as a temporizing graft to maintain the ocular integrity in two patients with corneal perforation.

Fulltext Chromosome 13q deletion with Cornelia de Lange syndrome phenotype

Ngo CT, Alhady M, Tan AK, Norlasiah IS, Ong GB, Chua CN

Med J Malaysia, 2007 Mar;62(1):74-5.

PMID: 17682579

A 3-year-old girl with facial dysmorphic features suggestive of Cornelia de Lange syndrome was seen in the ophthalmology unit for a right leukocoria. The leukocoria was found to be caused by a large retinoblastoma and the right eye was enucleated. Chromosomal analysis revealed partial chromosome 13q deletion involving band 14 which is associated with a high risk of retinoblastoma. This case shows that patient with chromosome 13q deletion syndrome cannot be diagnosed based on dysmorphic features only. Chromosomal analysis is warranted in all infants with facial dysmorphism suggestive of Cornelia de Lange syndrome so that those with chromosome 13q deletion can be referred early for early detection of retinoblastoma.

Axial length elongation profiles from 3 to 6 years in an Asian paediatric population: the Growing Up in Singapore Towards Healthy Outcomes birth cohort study (GUSTO)

Chen DZ, Wong C, Lam JSH, Sun CH, Lai Y, Koh VTC, et al.

Br J Ophthalmol, 2023 Sep 19.

PMID: 37726156 DOI: 10.1136/bjo-2023-323906

AIMS: To determine axial length (AL) elongation profiles in children aged 3-6 years in an Asian population.

METHODS: Eligible subjects were recruited from the Growing Up in Singapore Towards Healthy Outcomes birth cohort. AL measurement was performed using IOLMaster (Carl Zeiss Meditec, Jena, Germany) at 3 and 6 years. Anthropometric measurements at birth, cycloplegic refraction at 3 and 6 years, questionnaires on the children's behavioural habits at 2 years and parental spherical equivalent refraction were performed. Multivariable linear regression model with generalised estimating equation was performed to determine factors associated with AL elongation.

RESULTS: 273 eyes of 194 children were included. The mean AL increased from 21.72±0.59 mm at 3 years to 22.52±0.66 mm at 6 years (p<0.001). Myopic eyes at 6 years had greater AL elongation (1.02±0.34 mm) compared with emmetropic eyes (0.85±0.25 mm, p=0.008) and hyperopic eyes (0.74±0.16 mm, p<0.001). The 95th percentile limit of AL elongation was 1.59 mm in myopes, 1.34 mm in emmetropes and 1.00 mm in hyperopes. Greater birth weight (per 100 g, β=0.010, p=0.02) was significantly associated with greater AL elongation from 3 to 6 years, while parental and other behavioural factors assessed at 2 years were not (all p≥0.08).

CONCLUSION: In this preschool cohort, AL elongates at an average length of 0.80 mm from 3 to 6 years, with myopes demonstrating the greatest elongation. The differences in 95th percentile limits for AL elongation between myopes, emmetropes and hyperopes can be valuable information in identifying myopia development in preschool children.

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