Central corneal thickness in high myopia.
OBJECTIVE
To examine if central corneal thickness (CCT) is different in emmetropia and high myopia.


METHODS
57 emmetropic subjects (0 to + 1.5 D) and 48 high myopes (all more than - 6 D in spherical equivalent refraction) were studied. CCT was measured by a Haag-Streit Optical Low-Coherence Reflectometry (OLCR) pachymeter, a recently developed high precision pachymeter with a standard deviation (SD) for repeated measurements of 1 microm.


RESULTS
Mean CCT for the emmetropic group was 538.6 microm (SD = 32.1), and for the myopic group 527.7 microm (SD = 35.0). Neither the mean CCT nor the variance from the two groups showed a statistically significant different (p > 0.05).


CONCLUSIONS
CCT is not systematically altered in myopia. The process by which the myopia progresses does not to a measurable degree influence the central cornea.
Pedersen
Lene
L
Department of Ophthalmology, Aarhus University Hospital, Arhus Sygehus, Arhus, Denmark. lenep74@hotmail.com
Hjortdal
Jesper
J
Ehlers
Niels
N
D000293:Adolescent; D000328:Adult; D001837:Body Weights and Measures; D003315:Cornea / Q000033:anatomy & histology* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000473:pathology*; D012029:Refraction, Ocular; D014463:Ultrasonography