Corneal Thickness in a Population-Based, Cross-Sectional Study: The Tehran Eye Study

Abstract

The mean CCT in the present study was 555.6 microm, which is relatively higher in comparison with that in other ethnic groups. In the multiple regression model, age and ACD were correlated with the CCT, but refractive errors showed no correlation.

Corneal resistance factor and corneal hysteresis in a 6- to 18-year-old population

“…Central corneal thickness can also affect variations in corneal biomechanical indices; most East Asian populations have thinner corneas than European and Iranian populations. 21 In our study, girls had a higher CRF than boys; this was true even after adjusting for CCT. However, we did not find a statistically significant difference in CH between boys and girls.…”

“…Similar studies give a detailed description of these indices in different populations. [13][14][15][16][17][18][19][20][21][22][23][24] Results in our study showed that the mean CRF was 11.74 mm Hg and its normal range was from 8.19 to 15.28 mm Hg. The mean CH in this study was 11.49 mm Hg with a normal range from 7.67 to 15.31 mm Hg.…”

Relationship between minimum corneal thickness and refractive state, keratometry, age, sex, and left or right eye in refractive surgery candidates

“…Other studies with a more biased study population also found weak but statistically significant correlation between corneal thickness and age and the increase in CCT throughout life. 13,15 Using CCT as a basis, 2 large population studies in Asia did not find significant differences between CCT and refractive state or keratometry. 15,16 They did, however, report an increased CCT in men compared with women.…”

Age-related differences in corneal epithelial thickness measurements with anterior segment optical coherence tomography

“…Gray sectors Sectors where there was no significant difference in regional thickness between age groups, white sectors sectors where there was a significant difference between the age groups. *, **Significantly different at P \ 0.01 and P \ 0.001, respectively, according to the one-way analysis of variance test with age [17,[22][23][24][25]. Reinstein and colleagues reported that the CET is correlated with neither age nor spherical equivalent refraction [1].…”

“…Many demographic, ethnic, and ophthalmologic factors have been reported to be correlated with corneal thickness [17,19,[22][23][24][25], and these factors could also influence the CET. Some authors have reported that the central corneal thickness is not correlated with age [14,26], while others have indicated that the central cornea thins Fig.…”