Defining the Limits of Normal Conjunctival Fornix Anatomy in a Healthy South Asian Population

Autor: Khan, Imran J., Ghauri, Abdul-Jabbar, Hodson, James, Edmunds, Matthew R., Cottrell, Paul, Evans, Simon, Williams, Geraint P., Rauz, Saaeha
Jazyk: angličtina
Předmět:
Zdroj: Ophthalmology. (2):492-497
ISSN: 0161-6420
DOI: 10.1016/j.ophtha.2013.09.033
Popis: PurposeQuantifying the extent of conjunctival fibrosis for documentation of progression in conjunctival scarring disease is a clinical challenge. Measurement of forniceal foreshortening facilitates monitoring of these disorders. This study aims (1) to define the limits of the normal human conjunctival fornices and how these alter with age and (2) to provide normative data for upper and lower fornix depths (FDs) and fornix intercanthal distance (FICD) within a healthy South Asian, racially distinct population.DesignEpidemiologic, cross-sectional study.ParticipantsA total of 240 subjects with national origins from South Asia, with no known ocular history and normal adnexal and conjunctival examination, aged 20 to 80 years.MethodsAn FICD modification of a custom-designed fornix depth measurer (FDM) was validated and used for measurement of both lower and upper FDs together with FICDs in 480 healthy eyes with no ocular comorbidities. Data were analyzed using repeated-measures analysis of variance and presented as means with 95% confidence intervals (CIs).Main Outcome MeasuresMean lower and upper FDs and FICD for the entire cohort, stratified according to age decade and sex.ResultsFor this South Asian population, the overall upper and lower FDs were 15.3 mm (95% CI, 14.9–15.6) and 10.9 mm (95% CI, 10.7–11.1), respectively, with FICD defined as 32.9 mm (95% CI, 32.5–33.4) (upper) and 31.7 mm (95% CI, 31.3–32.1) (lower). With increasing age, a progressive reduction of all measured parameters (P
Databáze: OpenAIRE