Abstract In their excellent article, Broadway and colleagues1 follow an established convention in defining surgical success in trabeculectomy as an intraocular pressure (IOP) of 21 mm Hg or less without medication. The aim of glaucoma surgery is to reduce IOP to a level where there is nonprogression of visual field loss. The IOP likely to achieve that aim is unknown, but a value of less than 15 mm Hg has been suggested by Hitchings.2 Field stability is found when the IOP is below 17 mm Hg,3 with 58% of fields stable in eyes with pressures below 15 mm Hg compared with only 15% of eyes with pressures above 15 mm Hg.4 However, the matter may not be quite this clear-cut, as a 20-year follow-up of trabeculectomy in a stable, white population in England was unable to demonstrate field stability "... whatever cut off point is used for IOP." References 1. Broadway DC, Grierson I, O'Brien C, Hitchings RA. Adverse effects of topical antiglaucoma medication, 11: the outcome of filtration surgery . Arch Ophthalmol . 1994;112:1446-1453.Crossref 2. Hitchings R. Primary surgery for open angle glaucoma . Eye . 1993;77:445-448. 3. Freyler H, Menapace R. Is blindness inevitable in glaucoma? Spektrum Augenheilkd . 1988;23:121-127. 4. Odberg T. Visual field prognosis in advanced glaucoma . Acta Ophthalmol . 1987;65( (suppl) ):27-29.Crossref 5. Watson PG, Jakeman C, Ozturk M, Barnett MF, Barnett F, Khaw KT. The complications of trabeculectomy (a twenty-year follow-up) . Eye . 1990;4:425-438.Crossref
Archives of Ophthalmology – American Medical Association
Published: Jul 1, 1995
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera