Assessment of corneal thickness in soft contact lens users using anterior segment optical coherence tomography
Purpose: The aim was to evaluate the corneal thicknesses of
soft contact lens (SCL) wearers using anterior segment
optical coherence tomography (AS‐OCT).
Method: The epithelial and overall thicknesses of both the
central cornea and the nasal and temporal cornea of SCL
wearers (25 subjects) were obtained by As-OCT and
compared with those of refraction‐matched controls
(25subjects) and patients with emmetropia (25 subjects).
Results: The mean corneal epithelial thicknesses in SCL wearing,
spectacle‐wearing and emmetropic groups were48.13±2.385µm ,
51.915±2.81µm and 53.13±2.105µm , respectively. The
corneal epithelium of members of the SCL group was significantly
thinner than in both the spectacles and emmetropic groups (p = 0.000 and
0.006, respectively), whereas the central corneal thickness in SCL
wearing,spectacle wearing and emmetropic groups were
respectively.the corneal thickness of SCL group was significantly thinner
than both the spectacles and emmetropic groups.
Conclusions: Contact lens wear is related to thinning of both corneal
thickness and epithelium. AS‐OCT is a non‐invasive and clinically
applicable technique for assessing the involvement of the cornea in
contact lens wearers.