PMC8759550_01
Erosion of the conjunctiva over the Ahmed glaucoma valve.
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F1
In follow-ups, intraocular pressures were regulated in both eyes (14 mmHg in the right and 15 mmHg in the left eye) and the corneal thickness was 700 microns at post-operative 12th month; in the right eye, conjunctival erosion was seen 4 mm away from the limbus over the tube at the post-operative 24th month (Fig. 1).
It was seen that the first layer of amniotic membrane is applied over the tube with the epithelial side.
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F2
After the first step in closing the anterior composite conjunctiva-Tenon flap and bringing it back to its original position, the amniotic membrane's first layer was applied over the area of conjunctival tube erosion with the epithelial side up (Fig. 2).
A second layer of amniotic membrane is then applied over the epithelial defect.
bej-6-328-g003.jpg
PMC8759550_01_bej-6-328-g003.jpg
F3
The amniotic membrane's second layer was placed epithelial side down to conjunctival epithelial defect which functioned as a patch to protect the underlying membrane (Fig. 3).