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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Curr+Ophthalmol
2017 ; 29
(3
): 182-188
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Confocal biomicroscopic changes of the corneal layers following femtosecond
laser-assisted MyoRing implantation in keratoconus
#MMPMID28913508
Siatiri H
; Jabbarvand M
; Mohammadpour M
; Mollazadeh A
; Siatiri N
; Mirmohammadsadeghi A
J Curr Ophthalmol
2017[Sep]; 29
(3
): 182-188
PMID28913508
show ga
PURPOSE: To evaluate the effect of the femtosecond laser-assisted MyoRing
implantation on the confocal biomicroscopic findings in different corneal layers
of the patients with keratoconus. METHODS: Twelve eyes of 12 patients with mild
to moderate keratoconus (keratometry between 48 and 52 diopters) and intolerance
to hard contact lens entered the study. All the included patients underwent
femtosecond laser-assisted MyoRing (Dioptex GmBH, Linz, Austria) implantation.
The confocal biomicroscopy of the cornea was performed for all corneal layers in
the center and periphery preoperatively and 3 and 6 months postoperatively. The
cell counts and the qualitative findings in each layer of the cornea were
compared between preoperative and 3 and 6 months postoperative images. RESULTS:
Compared with preoperative values, the central epithelial and the central and
peripheral midstromal cell counts were significantly decreased 6 months after
MyoRing implantation (P = 0.015, P = 0.010 and 0.005, respectively). Furthermore,
compared with preoperative values, the peripheral posterior stromal cell count
was significantly decreased 3 months after MyoRing implantation (P = 0.033). In
the qualitative analysis, highly reflective nuclei in the basal epithelium,
transient disruption in the subepithelial nerve plexus, increase in the
reflectivity of the stromal keratocyte, and normal endothelial cell morphology
were seen. CONCLUSIONS: Our study demonstrated some findings similar to that
reported in intrastromal corneal ring segments (ICRS): decreased central
epithelial cell counts, highly reflective nuclei in the basal epithelium,
transient disruption in the subepithelial nerve plexus, and normal endothelial
cell count and morphology. In addition, a decrease in the central and peripheral
midstromal, transient decrease in posterior stromal cell counts, and absence of
amorphous depositions were in contrast with the findings reported in ICRS.