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Retrospective review of pressure reducing effect of iStent and Trabectome procedures combined with cataract surgery
Author(s) -
Toth M.,
Bazeer S.,
Gazzard G.
Publication year - 2016
Publication title -
acta ophthalmologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.534
H-Index - 87
eISSN - 1755-3768
pISSN - 1755-375X
DOI - 10.1111/j.1755-3768.2016.0466
Subject(s) - medicine , intraocular pressure , glaucoma , ophthalmology , trabeculectomy , cataract surgery , phacoemulsification , retrospective cohort study , surgery , visual acuity
Purpose To evaluate the intraocular pressure (IOP) reducing effect of cataract operation combined with either trabecular bypass microstent (iStent) implantation or internal trabeculectomy (Trabectome). Methods A retrospective interventional case series involving 61 eyes who underwent cataract surgery combined with either iStent implantation or Trabectome. Outcomes included short term (1–3 months) and long term (6–12 months) changes of intraocular pressures and number of glaucoma medications. Results For all cases, mean preoperative IOP of 19.9 ± 5.2 mmHg decreased by 17% to 15.8 ± 4.9 mmHg short term and by 12% to 16.4 ± 3.73 mmHg long term. For iStent cases, short term and long term IOP reduction was 21.7 and 17.7%, respectively (from 20.6 ± 6.3 mmHg to 15.2 ± 3.3 and to16.5 ± 3.8 mmHg). For Trabectome cases, short term and long term IOP reduction was 14.6 and 10.5%, respectively (from 19.5 ± 4.5 mmHg to 16.2 ± 5.7 and to 16.4 ± 3.8 mmHg). Long‐term IOP changes were significant in both subgroups (p < 0.005). There was no significant change in the number of glaucoma medications in either groups (2.0 ± 1.1 preoperative, and 1.7 ± 1.3 long term postoperative for all cases, p = 0.09.) Conclusions Cataract surgery combined with iStent or Trabectome provided a significant but only modest reduction in intraocular pressure.