Review Article

Safety and Efficacy of Microinvasive Glaucoma Surgery

Table 2

Efficacy of MIGS devices.

AuthorYearOperationNumber of eyesFollow-up (months)Preop IOP (mmHg)Postop IOP (mmHg)IOP reduction (mmHg, %)Preop medsPostop medsMedication reduction (n, %)

Schlemm’s canal devices
Trabectome
 Wecker et al. [39]2016Trabectome ± CS601224.5 ± 3.515.7 ± 3.48.8 (35.9)2.1 ± 1.31.8 ± 1.20.3 (14.3)
 Lee et al. [38]2016Trabectome17624.4 ± 4.416.9 ± 5.17.5 (30.7)3.9 ± 0.82.8 ± 1.61.1 (28.2)
 Jordan et al. [40]2013Trabectome ± CS261624.2 ± 5.518.2 ± 6.16 (24.8)2.1 ± 1.31.2 ± 1.10.9 (42.9)
 Bussel et al. [37]2015Trabectome581223.7 ± 5.516.2 ± 3.97.5 (31.6)2.8 ± 1.22.0 ± 1.30.8 (28.6)
Trabectome ± CS151220 ± 5.915.6 ± 5.14.4 (22.0)2.5 ± 1.51.6 ± 1.40.9 (36.0)
 Maeda et al. [64]2013Trabectome80626.6 ± 8.117.4 ± 3.49.2 (34.6)4.0 ± 1.42.3 ± 1.21.7 (42.5)
 Ting et al. [36]2012Trabectome4501225.5 ± 7.916.8 ± 3.98.7 (34.1)2.7 ± 1.32.2 ± 1.30.5 (20.9)
Trabectome671229 ± 7.516.1 ± 4.012.9 (44.5)3.1 ± 1.22.2 ± 1.40.8 (28.5)
Trabectome ± CS2631219.9 ± 5.415.6 ± 3.24.3 (21.6)2.4 ± 1.11.7 ± 1.30.8 (31.3)
Trabectome ± CS451221.7 ± 8.414.2 ± 3.17.5 (34.6)2.5 ± 1.01.6 ± 1.31.0 (37.9)
 Francis et al. [42]2008Trabectome ± CS3041220 ± 6.315.5 ± 2.94.5 (22.5)2.7 ± 1.11.4 ± 1.31.2 (45.7)
 Minckler et al. [35]2005Trabectome371228.2 ± 4.416.3 ± 2.011.9 (42.2)1.2 ± 0.60.4 ± 0.60.8 (66.7)

ELT
 Babighian et al. [49]2010ELT152425.0 ± 1.917.6 ± 2.27.4 (29.6)2.2 ± 0.60.7 ± 0.81.5 (66.8)
 Wilmsmeyer et al. [48]2006ELT751223.3 ± 0.618.8 ± 0.84.5 (19.3)1.9 ± 0.11.8 ± 0.20.1 (5.3)
ELT + CS601222.4 ± 0.816.4 ± 0.46.0 (26.8)1.1 ± 0.21.2 ± 0.2−0.1 (−9.1)

iStent
 Vold et al. [15]20162 iStents543625.5 ± 2.514.610.9 (42.7)00.1−0.1
 Katz et al. [7]20151 iStent381819.8 ± 1.315.6 ± 1.54.2 (21.2)1.7 + 0.60.181.5 (89.5)
2 iStents411820.1 ± 1.613.8 ± 1.36.3 (31.3)1.8 ± 0.50.121.6 (93.2)
3 iStents401820.4 ± 1.812.1 ± 1.28.3 (40.7)1.5 ± 0.70.081.4 (94.7)
 Craven et al. [17]20121 iStent + CS1162418.6 ± 3.417.1 ± 2.91.5 (8.1)1.6 ± 0.80.3 ± 0.61.3 (81.3)
 Fea [19]20101 iStent + CS121617.9 ± 2.616.6 ± 3.11.3 (7.3)2 ± 0.902 (100)
 Fernandez-Barrientos et al. [13]20102 iStents + CS171224.2 ± 1.817.6 ± 2.86.6 (27.3)1.1 ± 0.501.1 (100)
 Lindstrom et al. [16]20162 iStents571819.5 ± 1.514.4 ± 2.15.1 (26.2)10.020.98 (98.0)
 Tan and Au [23]20161 iStent + CS413621.2 ± 4.717.1 ± 2.44.1 (19.3)2.1 ± 1.01.3 ± 1.20.8 (38.1)
 Donnenfeld et al. [10]20152 iStents393620.6 ± 2.014.2 ± 2.16.4 (31.1)10.050.95 (95.0)
 Fea et al. [20]20151 iStent + CS104817.8 ± 2.715.9 ± 2.31.9 (10.7)1.9 ± 0.90.5 ± 0.81.4 (74.7)
 Neuhann [22]20151 iStent + CS623624.1 ± 6.914.9 ± 2.39.2 (38.2)1.8 ± 0.90.3 ± 0.51.5 (83.3)
 Ahmed et al. [11]20142 iStents391222.2 ± 2.017.1 ± 2.25.1 (23.0)211 (50.0)
 Arriola-Villalobos et al. [12]20132 iStents + CS201220.0 ± 3.716.8 ± 2.23.2 (16.0)1.3 ± 0.70.3 ± 0.61 (76.9)
 Patel et al. [26]20131 iStent ± CS44621.516.74.8 (22.3)2.30.61.7 (73.9)
 Arriola-Villalobos et al. [25]20121 iStent + CS193619.4 ± 1.916.3 ± 4.23.2 (16.3)1.3 ± 0.50.8 ± 0.90.48 (36.4)
 Buchacra et al. [9]20111 iStent101226.5 ± 7.917.0 ± 2.59.5 (35.8)2.9 ± 0.71.1 ± 0.61.8 (62.1)
 Samuelson et al. [18]20111 iStent + CS1111218.4 ± 3.216.9 ± 3.01.5 (8.2)1.5 ± 0.60.2 ± 0.61.3 (86.7)
 Vandewalle et al. [24]20091 iStent ± CS101219.615.83.8 (19.4)2.71.71 (37.0)
 Spiegel et al. [27]20091 iStent ± CS471221.5 ± 3.716.94.6 (21.4)1.6 ± 0.80.41.2 (75.0)

iStent inject
 Fea et al. [28]20142 iStent injects941221.1 ± 1.713.0 ± 2.38.1 (38.4)10.10.9 (91.5)
 Arriola-Villalobos et al. [30]20161 iStent inject + CS116020.4 ± 4.516.2 ± 2.34.2 (20.5)1.2 ± 0.81.1 ± 0.80.1 (7.6)
 Voskanyan et al. [29]20142 iStent injects991222.1 ± 3.315.7 ± 3.76.4 (29.0)2.2 ± 0.40.31.9 (87.3)
 Gonnermann et al. [31]20162 iStent injects + CS251221.3 ± 4.114.0 ± 2.37.3 (34.0)2.0 ± 0.91.3 ± 1.20.7 (36.0)
 Klamann et al. [65]20151 iStent inject††17621.2 ± 2.614.2 ± 1.47 (33.0)2.2 ± 0.90.9 ± 0.61.3 (59.8)
1 iStent inject††15623.8 ± 3.315.3 ± 1.18.4 (35.5)2.3 ± 1.21.0 ± 0.31.3 (55.4)
1 iStent inject††3628.3 ± 3.2N.A.N.A.N.A.N.A.N.A.

Hydrus
 Pfeiffer et al. [32]2015Hydrus + CS502418.9 ± 3.316.9 ± 3.32.0 (10.6)2.0 ± 1.00.5 ± 1.01.5 (75.0)
 Fea et al. [33]2016Hydrus311223.1 ± 5.116.5 ± 2.66.6 (28.5)2.3 ± 0.80.9 ± 1.01.4 (60.7)
 Gandolfi et al. [34]2016Hydrus212426.0 ± 4.016.0 ± 2.010.0 (38.5)2.70.9 ± 1.01.8 (66.9)

Suprachoroidal devices
CyPass
 Vold et al. [15]2016CyPass + CS3742424.4 ± 2.817.0 ± 3.47.4 (30.3)1.4 ± 0.90.2 ± 0.61.2 (85.7)
 Hoeh et al. [53]2016CyPass + CS1421220.2 ± 6.015.9 ± 3.14.3 (21.3)2.0 ± 1.11.10.9 (45.0)
 Garcia-Feijoo et al. [54]2015CyPass651224.5 ± 2.816.4 ± 5.58.1 (33.1)2.2 ± 1.11.4 ± 1.30.8 (36.4)
 Hoeh et al. [52]2013CyPass + CS184621.1 ± 5.915.6 ± 0.55.5 (26.1)2.1 ± 1.10.81.35 (64.3)

Subconjunctival devices
XEN-45
 Perez-Torregrosa et al. [55]2016XEN-45 + CS301221.2 ± 3.415.0 ± 2.56.2 (29.1)3.1 ± 0.70.2 ± 0.72.9 (94.5)

InnFocus
 Batlle et al. [63]2016InnFocus ± CS233623.8 ± 5.310.7 ± 3.513.1 (55.0)2.4 ± 1.00.7 ± 1.11.7 (70.8)

CS: cataract surgery; ELT: excimer laser trabeculotomy; IOP: intraocular pressure; represents unpaired results; represents only prospective case series and randomized controlled trials are included; † represents postwashout IOP; †† represents study was split into three groups: phakic open-angle glaucoma, phakic pseudoexfoliation glaucoma, and pseudophakic subjects, respectively.