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Changes in the central macular thickness (CRT), choroidal thickness (CT) and axial length (AXL) after glaucoma surgery procedures

Poster Details

First Author: J.Konopińska POLAND

Co Author(s):    E. Saeed   M. Deniziak   R. Zalewska   Z. Mariak   M. Rękas        

Abstract Details


Assessment of changes in the central macular thickness (CRT), choroidal thickness (CT) and the axial length (AXL) after successful glaucoma surgery: trabeculectomy vs mini ExPress device implantation.


Departament of Ophthalmolpgy, Mediacal University of Białystok,Poland


46 eyes with unregulated open-angle glaucoma despite maximal-tolerated medical therapy were qualified for surgery. There were 25 eyes and 21 eyes in the ExPress and the Trabeculectomy group, respectively. The following criteria were assessed: intraocular pressure (IOP), corrected distance visual acuity (CDVA), central macular thickness, choroidal thickness and the axial length. Postoperative assessments took place on the 3rd month after surgery.


After 3 months of observation, the reduction in IOP was similar in both groups: the average IOP in the ExPress group reduced from 25.1 ± 9.3 to 18.4 ± 3 mmHg (P< 0.05), and from 26.1 ± 11.5 to 16.8 ± 3.6 mmHg in the Trabeculectomy group(P<0.05). CT and CRT increased in both groups after surgery (164,18 ± 21.4 µm vs 161,77 µm ± 19.3 µm) and (227,79 ± 15,1 µm vs 232,57 ±13.2µm) (P<0.05) respectively. AXL declined in both groups (23,33 mm vs 23,19 mm). We did not find any significant differences in the studied variables after surgery between the groups.


Both methods are effective for the surgical treatment of open-angle glaucoma. They have similar impact for CT,CRT and AXL postsugery changes.

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