AIM: To evaluate secondary glaucoma after penetrating keratoplasty with anterior-segment optical coherence tomography (OCT). DESIGN: Case series. METHODS: Four eyes of four patients with corneal opacity and increased intraocular pressure (IOP) were evaluated using high-speed (2000 axial scans/s) OCT at 1.3 microm wavelength. Cross-sectional images of the anterior segment were analysed to assess the cause of increase in pressure. RESULTS: Slit-lamp evaluation of the anterior chamber in all cases was limited by corneal opacity. The OCT imaging allowed visualisation of anterior-segment structures behind the opaque corneas. Using OCT, iris-intraocular lens adhesion and pupillary block were identified as the probable reasons for the increased IOP in one case. Peripheral anterior synechiae and angle closure were identified in the three remaining cases. In two cases, we found that the tip of the aqueous drainage tube was blocked by peripheral anterior synechiae. CONCLUSIONS: OCT is similar to ultrasound in that it allows visualisation through opaque corneas. However, OCT has an advantage in that it requires neither contact nor immersion. It is a valuable tool for evaluating the depth of the anterior chamber angle and the causes of secondary angle closure.
AIM: To evaluate secondary glaucoma after penetrating keratoplasty with anterior-segment optical coherence tomography (OCT). DESIGN: Case series. METHODS: Four eyes of four patients with corneal opacity and increased intraocular pressure (IOP) were evaluated using high-speed (2000 axial scans/s) OCT at 1.3 microm wavelength. Cross-sectional images of the anterior segment were analysed to assess the cause of increase in pressure. RESULTS: Slit-lamp evaluation of the anterior chamber in all cases was limited by corneal opacity. The OCT imaging allowed visualisation of anterior-segment structures behind the opaque corneas. Using OCT, iris-intraocular lens adhesion and pupillary block were identified as the probable reasons for the increased IOP in one case. Peripheral anterior synechiae and angle closure were identified in the three remaining cases. In two cases, we found that the tip of the aqueous drainage tube was blocked by peripheral anterior synechiae. CONCLUSIONS: OCT is similar to ultrasound in that it allows visualisation through opaque corneas. However, OCT has an advantage in that it requires neither contact nor immersion. It is a valuable tool for evaluating the depth of the anterior chamber angle and the causes of secondary angle closure.
Authors: H Hoerauf; R S Gordes; C Scholz; C Wirbelauer; P Koch; R Engelhardt; J Winkler; H Laqua; R Birngruber Journal: Ophthalmic Surg Lasers Date: 2000 May-Jun
Authors: Hans Hoerauf; Jörg Winkler; Christian Scholz; Christopher Wirbelauer; Roswitha S Gordes; Peter Koch; Ralf Engelhardt; Horst Laqua; Reginald Birngruber Journal: Lasers Surg Med Date: 2002 Impact factor: 4.025
Authors: Sunita Radhakrishnan; Jason Goldsmith; David Huang; Volker Westphal; David K Dueker; Andrew M Rollins; Joseph A Izatt; Scott D Smith Journal: Arch Ophthalmol Date: 2005-08
Authors: D Huang; E A Swanson; C P Lin; J S Schuman; W G Stinson; W Chang; M R Hee; T Flotte; K Gregory; C A Puliafito Journal: Science Date: 1991-11-22 Impact factor: 47.728