PURPOSE To examine anterior chamber depth (ACD) and anterior chamber angle (ACA) in patients with glaucoma after cataract extraction with an anterior optical coherence tomography (OCT) system. METHODS A new commercially available 1310 nm infrared light anterior segment OCT system was used for anterior chamber evaluation. Sixty patients (n=20 with primary open angle glaucoma [POAG], n=20 with ...

Purpose To report the first case of acute angle closure due to a high-pressure Descemet membrane detachment following deep anterior lamellar keratoplasty (DALK) using the "big bubble" technique. Observations A 25-year-old man underwent DALK surgery for keratoconus using the "big bubble" technique in which an air bubble is injected in deep stroma to promote dissection of underlying Descemet me...

PURPOSE To examine the associations between iris surface features with anterior chamber angle width in Asian eyes. METHODS In this prospective cross-sectional study, we recruited 600 subjects from a large population-based study, the Singapore Epidemiology of Eye Diseases (SEED) study. We obtained standardized digital slit-lamp iris photographs and graded the iris crypts (by number and size), ...

PURPOSE To investigate the correlation between peripheral anterior synechia (PAS) and the quantitative anterior chamber angle parameters measured by ultrasound microscopy (UBM) in angle-closure glaucoma suspect (ACGS) eyes. METHODS Eyes were defined ACGS as having occludable angles and intraocular pressure less than 21 mm Hg without glaucomatous optic nerve head. The gonioscopic criteria for ...

New advances in anterior segment optical coherence tomography (OCT) technology development allow visualizing the anterior chamber angle of the eye with high speed and high resolution. Fourier-domain (FD) OCT instruments working at 840 nm can reliably identify fine angle structures such as the Schwalbe's line. This paper demonstrates quantitative angle assessment with 840 nm FD-OCT and provides ...

PURPOSE To compare EyeCam (Clarity Medical Systems, Pleasanton, CA) imaging with gonioscopy for detecting angle closure. METHODS In this prospective, hospital-based study, subjects underwent gonioscopy by a single observer and EyeCam imaging by a different operator. EyeCam images were graded by two masked observers. The anterior chamber angle in a quadrant was classified as closed if the trab...

THE viewing of translucent structures by transmitted light is a well established practice in ophthalmology, but so far does not seem to have been applied to the region of the angle of the anterior chamber. A simple and effective method of transillumination has been devised, and, as certain structures in this important region show to better advantage under these conditions, the technique is pres...

m In addition to gonioscopy ultmsound biomicmscopy and Scheimpflug photography can be used to measure the imterior chamber angle width. The same subjects were measured with all three diagnostic tools and then the values were compared. v The anterior chamber angle width was measured in eight meridians in bath eyes of 20 volunteers without any history of ophthalmological problems. Gonioswpy was p...

AIM To establish normative values for the anterior segment in normal infants and children in relation to age. METHODS Anterior segments were measured in 46 normal infants and children (21 males and 25 females, aged from 1 to 60 months (mean 17.09 (SD 16.99) months)), by use of ultrasound biomicroscopy. RESULTS Anterior chamber depth, trabecular-iris angle, angle opening (trabecular-iris) di...

m In addition to gonioscopy ultmsound biomicmscopy and Scheimpflug photography can be used to measure the imterior chamber angle width. The same subjects were measured with all three diagnostic tools and then the values were compared. v The anterior chamber angle width was measured in eight meridians in bath eyes of 20 volunteers without any history of ophthalmological problems. Gonioswpy was p...