To describe the efficacy and safety of the adjustable system eyeWatch in vitrectomized glacomatous eyes.
Methods
Prospective, non-comparative, small case series of 2 patients who underwent glaucoma drainage device implant with the eyeWatch system. Intraocular pressure, number of medications and early and late complications were evaluated.
Results
None of the operated eyes developed early or late complications. After 1 week post operatively, the IOP raised at 28 mmHg in the first eye and 25 mmHg in the second one. The eyeWatch Pen was used to open and set the device into position 3 (that means implant half opened) After waiting for 30 min, IOP was 15 mmHg and 11 mmHg, respectively. Thirty days after surgery we set the EyeWatch into position 0 (that means implant full opened) even though the IOP was under control. A new IOP measurement was done and we registered that IOP was 14 mmHg and 10 mmHg respectively, and it remained stable after six months of follow up.
Conclusion
In conclusion, in our case series the use of eyeWatch adjustable system allows a safe and gradual regulation of the flow during post-operative management also in vitrectomized eyes. Considering the percentage of hypotony related complications in vitrectomized eyes this system is an effective and safe technique to handle glaucoma in post vitreoretinal surgery eyes.
RamuluPYCorcoranKJCorcoranSL,et al.Utilization of various glaucoma surgeries and procedures in medicare beneficiaries from 1995 to 2004. Ophthalmology2007; 114: 2265–2270. e2261.
2.
VinodKGeddeSJFeuerWJ, et al. II. Practice preferences for glaucoma surgery: a survey of the American glaucoma society. J Glaucoma2017; 26: 687–693.
3.
AroraKSRobinALCorcoranKJ, et al.Use of various glaucoma surgeries and procedures in medicare beneficiaries from 1994 to 2012. Ophthalmology2015; 122: 1615–1624.
4.
MincklerDSFrancisBAHodappEA, et al.Aqueous shunts in glaucoma: a report by the American academy of ophthalmology. Ophthalmology2008; 115: 1089–1098.
5.
ColemanALSmythRJWilsonMR,et al.Initial clinical experience with the Ahmed glaucoma valve implant in pediatric patients. Arch Ophthalmol1997; 115: 186–191.
6.
HuhK-CKeeC-W. A clinical analysis of the Ahmed glaucoma valve implant with or without partial ligation of silicone tube. Journal of the Korean Ophthalmological Society2000; 1: 2611–2617.
7.
PrataJAJrMérmoudALaBreeL,et al.In vitro and in vivo flow characteristics of glaucoma drainage implants. Ophthalmology1995; 102: 894–904.
8.
MoltenoACPolkinghornePJBowbyesJA. The vicryl tie technique for inserting a draining implant in the treatment of secondary glaucoma. Aust N Z J Ophthalmol1986; 14: 343–354.
9.
TribleJRBrownDB. Occlusive ligature and standardized fenestration of a BGIrveldt tube with and without antimetabolites for early postoperative intraocular pressure control. Ophthalmology1998; 105: 2243–2250.
10.
SharkawiEArtesPHOleszczukJD, et al.Systematic occlusion of shunts: control of early postoperative IOP and hypotony-related complications following glaucoma shunt surgery. J Glaucoma2016; 25: 54–61.
11.
MarchiniGCerutiPVizzariG, et al.Long-term outcomes of a modified technique using the BGIrveldt glaucoma implant for the treatment of refractory glaucoma. J Glaucoma2016; 25: 952–958.
12.
ChemelloFRodellaABaroscoG, et al.Double versus single suture stenting to manage hypertensive spikes after glaucoma drainage device implantation. Eur J Ophthalmol2021; 31: 3542–3548.
13.
YuDYMorganWHSunX, et al.The critical role of the conjunctiva in glaucoma filtration surgery. Prog Retin Eye Res2009; 28: 303–328.
14.
ErcalikNYImamogluS. Ahmed glaucoma valve implantation in vitrectomized eyes. J Ophthalmol2018; 2018: 9572805.
15.
JoJSungKRKimYJ. Influence of vitrectomy-related factors on the outcome of Ahmed Glaucoma valve implantation. Korean J Ophthalmol2018; 32: 400–408.
16.
ArpaPArpaC. Ahmed glaucoma valve in vitrectomized eyes: an implantation technique to minimize early postoperative fluid-loss hypotony. Eur J Ophthalmol2021; 31: 2759–2764.
17.
SahebHGeddeSJSchiffmanJC,et al.Outcomes of glaucoma reoperations in the tube versus trabeculectomy (TVT) study. Am J Ophthalmol2014; 157: 1179–1189. e1172.
18.
HongJWChoiGJ. Ahmed valve implantation for refractory glaucoma following pars plana vitrectomy. Korean J Ophthalmol2005; 19: 293–296.
19.
ChristakisPGKalenakJWTsaiJC, et al.The Ahmed versus BGIrveldt study: five-year treatment outcomes. Ophthalmology2016; 123: 2093–2102.
20.
RoySVillamarinAStergiopulosC, et al.Initial clinical results of the eyeWatch: a new adjustable glaucoma drainage device used in refractory glaucoma surgery. J Glaucoma2019; 28: 452–458.
HwangJ-JKimY-YHuhK. Risk factors of intraocular pressure elevation after pars plana vitrectomy. Journal of the Korean Ophthalmological Society2000; 1: 945–950.
23.
HanDPLewisHLambrouFHJr,et al.Mechanisms of intraocuular pressure elevation after pars plana vitrectomy. Ophthalmology1989; 96: 1357–1362.
24.
HolekampNMShuiYBBeebeDC. Vitrectomy surgery increases oxygen exposure to the lens: a possible mechanism for nuclear cataract formation. Am J Ophthalmol2005; 139: 302–310.
25.
ChangS. LXII Edward Jackson lecture: open angle glaucoma after vitrectomy. Am J Ophthalmol2006; 141: 1033–1043.
26.
NguyenQHLloydMAHeuerDK, et al.Incidence and management of glaucoma after intravitreal silicone oil injection for complicated retinal detachments. Ophthalmology1992; 99: 1520–1526.
27.
NowackCLuckeKLaquaH. Removal of silicone oil in treatment of so-called emulsification glaucoma. Ophthalmologe1992; 89: 462–464.
28.
GeddeSJ. Management of glaucoma after retinal detachment surgery. Curr Opin Ophthalmol2002; 13: 103–109.
29.
BudenzDLTabaKEFeuerWJ, et al. Jr. Surgical management of secondary glaucoma after pars plana vitrectomy and silicone oil injection for complex retinal detachment. Ophthalmology2001; 108: 1628–1632.
30.
InoueTInataniMTakiharaY, et al.Prognostic risk factors for failure of trabeculectomy with mitomycin C after vitrectomy. Jpn J Ophthalmol2012; 56: 464–469.
31.
SouzaCTranDHLomanJ, et al.Long-term outcomes of Ahmed glaucoma valve implantation in refractory glaucomas. Am J Ophthalmol2007; 144: 893–900.
32.
HyungS-MMinJ-P. Subconjunctival silicone oil drainage through the Molteno implant. Korean J Ophthalmol1998; 12: 73–75.
33.
ChanCTarasewiczDLinS. Subconjunctival migration of silicone oil through a BGIrveldt pars plana glaucoma implant. Br J Ophthalmol2005; 89: 240–241.
34.
GeddeSJHerndonLWBrandtJD, et al.Postoperative complications in the tube versus trabeculectomy (TVT) study during five years of follow-up. Am J Ophthalmol2012; 153: 804–814. e801.
35.
GeddeSJSchiffmanJCFeuerWJ, et al.The tube versus trabeculectomy study: design and baseline characteristics of study patients. Am J Ophthalmol2005; 140: 275–287.
36.
BudenzDLBartonKFeuerWJ, et al.Treatment outcomes in the Ahmed BGIrveldt comparison study after 1 year of follow-up. Ophthalmology2011; 118: 443–452.
37.
ChristakisPGTsaiJCKalenakJW, et al.The Ahmed versus BGIrveldt study: three-year treatment outcomes. Ophthalmology2013; 120: 2232–2240.
38.
ChristakisPGZhangDBudenzDL, et al.Five-year pooled data analysis of the Ahmed BGIrveldt comparison study and the Ahmed versus BGIrveldt study. Am J Ophthalmol2017; 176: 118–126.
39.
ChengYLiuXHShenX,et al.Ahmed valve implantation for neovascular glaucoma after 23-gauge vitrectomy in eyes with proliferative diabetic retinopathy. Int J Ophthalmol2013; 6: 316–320.
40.
GuptaSChaurasiaAKChawlaR, et al.Long-term outcomes of glaucoma drainage devices for glaucoma post-vitreoretinal surgery with silicone oil insertion: a prospective evaluation. Graefes Arch Clin Exp Ophthalmol2016; 254: 2449–2454.
41.
ParkHYLeeNYParkCK. Risk factors of shallow anterior chamber other than hypotony after Ahmed glaucoma valve implant. J Glaucoma2009; 18: 44–48.
42.
ChoritzLKoynovKRenieriG, et al.Surface topographies of glaucoma drainage devices and their influence on human tenon fibroblast adhesion. Invest Ophthalmol Visual Sci2010; 51: 4047–4053.
43.
Eibschitz-TsimhoniMSchertzerRMMuschDC,et al.Incidence and management of encapsulated cysts following Ahmed glaucoma valve insertion. J Glaucoma2005; 14: 276–279.
44.
RivaIRobertiGOddoneF, et al.Ahmed glaucoma valve implant: surgical technique and complications. Clin Ophthalmol2017; 11: 357–367.
45.
Nouri-MahdaviKCaprioliJ. Evaluation of the hypertensive phase after insertion of the Ahmed glaucoma valve. Am J Ophthalmol2003; 136: 1001–1008.
46.
SteinJDMcCoyANAsraniS, et al.Surgical management of hypotony owing to overfiltration in eyes receiving glaucoma drainage devices. J Glaucoma2009; 18: 638–641.
47.
RoseGELavinMJHitchingsRA. Silicone tubes in glaucoma surgery: the effect of technical modifications on early postoperative intraocular pressures and complications. Eye (Lond)1989; 3(Pt 5): 553–561.
48.
LimKBufidisTEslahE, et al.Early flow control in a non-valved glaucoma drainage device: intraluminal stent suture in isolation. Invest Ophthalmol Visual Sci2002; 43: 3357–3357.
49.
AnSJWenJCQuistMS, et al.Scheduled postoperative ripcord removal in BGIrveldt 350 implants: a prospective, randomized trial. J Glaucoma2019; 28: 165–171.
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