Advanced search×

White-to-white corneal diameter in the Tehran Eye Study.

Cornea 29(1):9-12 (2010) PMID 19907300

PURPOSE: To determine the mean corneal diameter and its determinants in the population of Tehran. METHODS: From the Tehran Eye Study participants who were sampled through a stratified cluster approach, those in the first 4 municipality districts of Tehran were selected, and after applying the inclusion and exclusion criteria, 399 right eyes and 401 left eyes of 410 people aged 14 years and older were examined with the Orbscan II. The corneal diameter was defined as the horizontal limbus-to-limbus distance. Linear regression was used to detect separate and multiple correlations. The design effect of cluster sampling was also considered and adjusted for. RESULTS: The studied participants were male in 38.80%, and their mean age was 40.68 +/- 16.80 years. The mean corneal diameter was 11.68 mm (95% confidence interval: 11.63-11.73). The 95% range (mean +/- 2 SDs) was 10.76-12.60 mm. The mean corneal diameter was 11.76 and 11.63 mm in males and females, respectively. The corneal diameter in the studied population had no significant correlation with age (P = 0.186) but showed an increase of 0.18 mm for each millimeter increase in the anterior chamber depth (P = 0.028). CONCLUSION: Although the mean corneal diameter in the present population was not different from that reported in other studies, the data suggest that slightly different cutoff values for the definition of macrocornea (>12.60 mm) and microcornea (<10.76 mm) can be used with this population.

DOI: 10.1097/ICO.0b013e3181a9d0a9
Version: za2963e q8zaa q8zb6 q8zcc q8zd3 q8zeb q8zf1 q8zg3

Similar articles you may find interesting…

  1. Chromatographic separation and detection of target analytes from complex samples using inkjet printed SERS substrates.

    Analyst (2013) PMID 23671906

    We build upon our previous work on inkjet-printed SERS substrates by using paper and polymer membranes to integrate sample cleanup and analyte separation with SERS detection. Inkjet-printed paper SERS substrates provide a highly sensitive chemical detection platform of unprecedented cost and simplic...
  2. Beam Studies of the Segmented Resistive WELL: a Potential Thin Sampling Element for Digital Hadron Calorimetry

    arXiv:1305.1585 [physics.ins-det] 7 May 2013

    We report on recent beam studies of new single- and Double-THGEM-like structures; the multiplier is a Segmented Resistive WELL (SRWELL) - a single-faced THGEM in contact with a segmented resistive layer Inductively coupled to readout pads. Several 10$\times$10 cm$^2$ configurations With a total thic...
  3. The role of potential mediators in racial inequalities in tooth loss: the Pró-Saúde study.

    Community Dent Oral Epidemiol (2013) PMID 23647615

    There is an association between race and tooth loss that is mainly explained by current and early life socioeconomic variables, but not by behavioural factors and self-reported discrimination. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd....