Arcus Senilis Corneae Its Frequency in Some Ethnic Groups

Skeller, Erik

doi:10.1111/j.1755-3768.1955.tb03335.x

Cited by 4 publications

(2 citation statements)

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“…In previous studies, the eyes have previously been examined by various methods including naked eyes (1, 5, 10, 11, 15, 16, 19, 21, 25, 26), photography (8, 20), and slit-lamp examination (3, 6, 7, 20, 24). In this study, the author used the naked eye method for easy and prompt examination under adequate room light.…”

Section: Discussionmentioning

confidence: 99%

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An Evaluation of the Arcus Corneae For Age Estimation

Hanterdsith¹

2019

Academic Forensic Pathology

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Although the arcus corneae (AC) has long been used as an age indicator for forensic purposes, its diagnostic value has not been evaluated. To evaluate the AC as a predictor of chronological age, the author has studied the correlation of AC with respect to age of the deceased. A cross-sectional study was conducted of 342 Thai corpses at the Maharat Nakhon Ratchasima Hospital, Thailand. AC was graded into three levels: no AC, incomplete ring, and complete ring. One-way analysis of variance, chi-square test, binomial logistic regression, sensitivity, specificity, predictive values, and likelihood ratios were used for analysis. The Cohen’s kappa was used to determine the intraobserver and interobserver reliability. The prevalence of AC and the probability of complete AC were significant higher in corpses aged 60 years and above than in those under 60 years. Consequently, this study confirmed that the prevalence of AC was significantly correlated with the age of Thai individuals. If the complete AC is used as an indicator of age of 60 years and above, complete AC has high sensitivity (92.56%) but low specificity (72.85%), low positive predictive value (65.12%), but high negative predictive value (94.71%). For diagnostic value, the presence of AC can be used for age screening but not for absolute confirmation. The absence of AC indicates young age, incomplete AC indicates middle age, and complete AC indicates old age. The high intraobserver and interobserver reliability provides assurance of the value of AC as a means to estimate personal age.

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Section: Discussionmentioning

confidence: 99%

“…It is rarely seen in people under 60 years (9) and never seen in people under 20 years (3). However, the prevalence of AC within some ethnic groups varies even in the same region (10 –12). There have been few such studies in an Asian population (13).…”

Section: Introductionmentioning

confidence: 99%