Clinical Study
Deep Sclerectomy with Nonabsorbable Implant (T-Flux) in
Patients with Pseudoexfoliation Glaucoma
Pavel Studeny,
1
Alina-Dana Baxant,
1
Jana Vranova,
2
Pavel Kuchynka,
1
and Jitka Pokorna
1
1
Department of Ophthalmology, University Hospital Kralovske Vinohrady, 3rd Faculty of Medicine,
Charles University, Prague, Czech Republic
2
Department of Medical Biophysics and Informatics, 3rd Faculty of Medicine, Charles University, Prague, Czech Republic
Correspondence should be addressed to Alina-Dana Baxant; alinadana.baxant@seznam.cz
Received 23 October 2016; Accepted 26 December 2016; Published 15 January 2017
Academic Editor: Colin Clement
Copyright © 2017 Pavel Studeny et al. Tis is an open access article distributed under the Creative Commons Attribution License,
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Purpose. To evaluate the efectiveness of deep sclerectomy with T-fux implant (DS T-fux) in patients with pseudoexfoliation
glaucoma (PExG). Methods. 20 eyes of 18 patients with medically uncontrolled PExG have undergone DS T-fux implantation.
Postoperatively we evaluated the IOP values and the frequency of complications. Te minimum follow-up time was 12 months (20
eyes) and the maximum 24 months (10 eyes). Results. Te mean preoperative IOP was 36.8 ± 8.7 mmHg. Te IOP signifcantly
decreased throughout all postoperative periods ( < 0.05) and reached 1 day afer surgery 11.45 ± 6.6 mmHg; 3 months
13.45 ± 3.6 mmHg; 12 months 14 ± 2.8 mmHg; and 24 months 14.80 ± 2.4 mmHg. Complete success rate, defned as IOP ≤
18mmHg without medication, was 85% (17/20 eyes) at 12 months. Qualifed success rate, defned as IOP ≤ 18 mmHg with or
without medication, was 100% (20/20 eyes). Te most frequent postoperative complications were mild hyphaema (9 patients, 45%),
choroidal detachment (3 patients, 15%), and hypotony—IOP < 5 mmHg (2 patients, 10%). Conclusions. DS with T-fux implant is a
safe and efective surgical treatment method for medically uncontrolled PExG. Te number of complications is low.
1. Introduction
Pseudoexfoliation syndrome (PEx) is an age-related systemic
disease characterized by the production and accumulation
of an abnormal fbrillar material as small, whitish deposits
in many ocular and extraocular tissues [1–3]. It was frst
described by Lindberg in 1917 [4, 5]. Te reported prevalence
of PEx varies from 0.2% to 30% in diferent studies and
populations; in European countries it is reported as being
between 4 and 6.5% [6–16]. In many of these patients a
special type of secondary glaucoma progressively develops—
pseudoexfoliation glaucoma (PExG). Te percentage of
patients with PEx who develop secondary glaucoma varies in
diferent studies. In one series of 100 consecutive subjects with
PEx, glaucoma was detected in 7% and ocular hypertension
in 15% of patients [17]. In the Jeng et al. study, 16% of patients
with PEx initially had antiglaucoma therapy, and, in the
remaining patients, the probability of being placed on therapy
was 44% at 15 years [18]. In the Grodum study, afer a mean
of 8.7 years, 54 out of 98 patients (55.1%) with PEx had
developed glaucoma [19].
PExG is thought to arise secondarily to congestion of
the trabecular meshwork by pseudoexfoliative material. It is
the most common form of secondary open-angle glaucoma.
In general, PExG in comparison with primary open-angle
glaucoma (POAG) has a greater resistance to medicamentous
treatment, rapid progression, higher diurnal intraocular pres-
sure (IOP), fuctuation, and poor prognosis [19–22].
If medical treatment is not sufcient to manage PExG,
subsequent interventions are surgical, typically comprising
laser trabeculoplasty, trabeculectomy, and the implantation
of a glaucoma drainage device [20].
Deep sclerectomy (DS) is a nonpenetrating fltration pro-
cedure for the surgical treatment of medically uncontrolled
open-angle glaucoma. It was designed in an attempt to lower
the risk of the incidence of some postoperative complications
afer penetrating glaucoma surgery and thus ofers both
surgeons and patients a safer, more convenient option [23–
25].
An evaluation of the efectiveness of deep sclerectomy and
nonabsorbable glaucoma implants in patients with PExG is
the main aim of this work.
Hindawi
Journal of Ophthalmology
Volume 2017, Article ID 6923208, 5 pages
https://doi.org/10.1155/2017/6923208