ISSN: 2459 - 1777 | E-ISSN 2587-0394
Volume : 7 Issue : 3 Year : 2022
Beyoglu Eye Journal Evaluation of Sudden Visual Loss and Central 10-Degree Visual Field Change Following Glaucoma Surgery in Severe and End-Stage Eyes [Beyoglu Eye J]
Beyoglu Eye J. 2022; 7(3): 181-187 | DOI: 10.14744/bej.2022.27037

Evaluation of Sudden Visual Loss and Central 10-Degree Visual Field Change Following Glaucoma Surgery in Severe and End-Stage Eyes

Alev Özçelik Köse, Mehmet Serhat Mangan, Sevcan Yildiz Balci, Nursal Melda Yenerel, Serhat Imamoglu, Hatice Tekcan
Department of Ophthalmology, University of Health Sciences Haydarpasa Training and Research Hospital, Istanbul, Türkiye

OBJECTIVES: The purpose of the study was to evaluate the sudden visual loss and central 10-degree visual field (VF) change following glaucoma surgery in eyes with severe and end-stage glaucoma.
METHODS: This was a single-center retrospective study. The charts of patients with severe and end-stage glaucoma who had undergone trabeculectomy and Ahmed glaucoma valve (AGV) implantation surgery were reviewed. Patients who had 10-2 Humphrey VF automated (HVFA) at follow-up were included and classified into two following groups: With split fixation on 10-2 HVFA before surgery split fixation group (SFG) and those without split fixation (WSFG).
RESULTS: The data of 37 patients in SFG and 28 patients in WSFG were reviewed. The mean follow-up duration was 2.06±0.24 years in SFG and 2±0.3 years in WSFG. 10-2 HVFA revealed that SFG had a mean MD –25.8±5.2 dB preop-eratively and –25.2±1.1 dB (p=0.18) at last visit, WSFG had a mean MD −9.8±4.8 dB preoperatively and −10.8±1.5 dB at last visit (p=0.10). In SFG, the mean intraocular pressure (IOP) decreased from 30.1±9.5 mmHg to 12.3±0.62 mmHg (p<0.001), and in WSFG, the mean IOP decreased from 30±6.9 mmHg to 12.3±0.90 mmHg at last visit (p<0.001). There was no statistical difference for visual acuity of both the groups at the follow-up (p=0.30 and p=0.70). In SFG, one patient had wipe-out phenomenon who had undergone AGV surgery.


DISCUSSION AND CONCLUSION: Although wipe-out phenomenon was a rare complication, it can develop not only after trabeculectomy but also after AGV surgery, and patients with split fixation and severe and end-stage glaucoma were at risk for this phenomenon regardless of the type of surgery. Both trabeculectomy and AGV surgery appear to provide stability of the central 10° VF.

Keywords: Ahmed glaucoma valve, end-stage glaucoma, split fixation, trabeculectomy, wipe-out.

Alev Özçelik Köse, Mehmet Serhat Mangan, Sevcan Yildiz Balci, Nursal Melda Yenerel, Serhat Imamoglu, Hatice Tekcan. Evaluation of Sudden Visual Loss and Central 10-Degree Visual Field Change Following Glaucoma Surgery in Severe and End-Stage Eyes. Beyoglu Eye J. 2022; 7(3): 181-187

Corresponding Author: Alev Özçelik Köse, Türkiye
Manuscript Language: English
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