Evaluation of the effects of selective laser trabeculoplasty on anterior segment parameters by anterior segment optical coherence tomography

2019 ◽  
Vol 35 (6) ◽  
pp. 1271-1275
Author(s):  
Murat Atabey Özer ◽  
Tevfik Oğurel ◽  
Serkan Özen ◽  
Yaşar Küçüksümer
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Optical Coherence ◽  
Selective Laser Trabeculoplasty ◽  
Laser Trabeculoplasty ◽  
Anterior Segment Parameters

Anterior chamber particles are associated with reduction of intraocular pressure after selective laser trabeculoplasty

2020 ◽  
pp. bjophthalmol-2019-315445
Author(s):  
Alexei N Kulikov ◽  
Dmitrii S Maltsev ◽  
Alina A Kazak ◽  
Maria A Burnasheva
Keyword(s):  
Optical Coherence Tomography ◽  
Intraocular Pressure ◽  
Anterior Chamber ◽  
Open Angle Glaucoma ◽  
Anterior Segment ◽  
Optical Coherence ◽  
Selective Laser Trabeculoplasty ◽  
Cross Sectional ◽  
Laser Trabeculoplasty ◽  
The Mean

PurposeTo study the correlation between intraocular pressure (IOP) reduction and the number of hyper-reflective particles appearing in the anterior chamber following selective laser trabeculoplasty (SLT).Material and methodsIn this prospective interventional study, we included primary open-angle glaucoma patients. All participants received a standardised SLT session, which consisted of 100 pulses of 0.9 mJ over 360°. Anterior segment optical coherence tomography (4×4 mm volume scan, 101 horizontal cross-sectional scans) and applanation tonometry were performed before SLT and 15 min, 1 day, 1 week, 1 month and 3 months after. Particles were counted on cross-sectional scans using a standardised algorithm.ResultsIn this study, we included 25 patients (25 eyes), 14 males and 11 females, with a mean age of 68.9±10.5 and baseline IOP of 21.4±4.5 mm Hg. IOP at month 1 and month 3 after SLT was 18.0±4.0 and 17.4±3.3 mm Hg, respectively. The mean number of anterior chamber particles before and 15 min after SLT was 0.62±0.2 and 7.1±2.0 particles/mm2, respectively (p=0.036). There was a statistically significant correlation between the mean number of anterior chamber particles 15 min after SLT and IOP reduction at 1 month (r=0.62, p=0.03) and 3 months (r=0.71, p=0.01).ConclusionThe number of the anterior chamber particles graded using anterior segment optical coherence tomography after the procedure correlates with the IOP-lowering effect of SLT.

scholarly journals Swept Source Optical Coherence Tomography Analysis of the Selected Eye’s Anterior Segment Parameters

2021 ◽  
Vol 10 (5) ◽  
pp. 1094
Author(s):  
Michał Dembski ◽  
Anna Nowińska ◽  
Klaudia Ulfik-Dembska ◽  
Edward Wylęgała
Keyword(s):  
Optical Coherence Tomography ◽  
Corneal Thickness ◽  
Anterior Segment ◽  
Optical Coherence ◽  
Swept Source ◽  
Iridocorneal Angle ◽  
Glaucoma Diagnosis ◽  
Good Repeatability ◽  
Anterior Segment Parameters ◽  
Important Marker

Background: The present study determined the mean reference values of the anterior segment parameters of the selected eye using swept source optical coherence tomography (SS-OCT) in healthy Caucasian participants. Methods: A total of 166 volunteers (age 54–79 years), women (n = 92) and men (n = 74), were analyzed. One eye of each subject was randomly selected for anterior segment imaging. The anterior segment of the eye was scanned with CASIA2. The analyzed anterior segment parameters were divided into three groups, namely parameters of the cornea, lens, and angle. Results: The OCT (e.g., Ks, Kf, pKf, pKs, and central corneal thickness) and Fourier parameters of the cornea were significantly different between females and males. The iridocorneal angle was the smallest in the upper quadrant for all distance from the apex of the angle (250, 500, and 750 µm). Conclusions: Therefore, SS-OCT enables the analysis of parameters of the cornea, anterior chamber, lens, and iridocorneal angle, highlighting its clinical utility. Sex-specific differences in the analyzed parameters should be taken into account during the diagnosis of corneal diseases. The configuration of the filtration angle is an important marker during glaucoma diagnosis and drainage implant surgery. Measurements with CASIA 2is characterized by very good repeatability.

scholarly journals Anterior Segment Parameters Associated to Acute Glaucoma with Slit Lamp Optical Coherence Tomography

2014 ◽  
Vol 04 (02) ◽  
pp. 40-45
Author(s):  
Liamet Fernández Argones ◽  
Ibrain Piloto Díaz ◽  
Sirley Sibello Deustua ◽  
Carmen María Padilla González
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Optical Coherence ◽  
Slit Lamp ◽  
Acute Glaucoma ◽  
Anterior Segment Parameters
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