Applications of Scheimpflug Imaging in Glaucoma Management: Current and Potential Applications

Nguyen, Alexander T.; Liu, Tiffany; Liu, Ji

doi:10.1155/2016/3062381

Cited by 11 publications

(3 citation statements)

References 67 publications

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“…We used Scheimpflug imaging to measure anterior segment parameters, including ICA. In the literature, parameters obtained with Scheimpflug imaging have been shown to correlate well with gonioscopy, (25)(26)(27) and while Scheimpflug devices cannot directly visualize the angle, they have the advantage of producing 3-dimensional data to use in the analysis. Altan et al (28) found that in nonglaucomatous eyes with a preoperative open ICA, uneventful phacoemulsification reduced IOP, increased ACD, and widened the ICA.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Uneventful Phacoemulsification on Intraocular Pressure and Anterior Segment Parameters in Pseudoexfoliation Syndrome

Atik¹

2020

Beyoglu Eye J

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The aim of this study was to evaluate the effects of cataract surgery on anterior segment parameters and intraocular pressure (IOP) in non-glaucomatous pseudoexfoliation syndrome (PXS) eyes. Methods: The cohort consisted of 65 patients who were to undergo cataract surgery; the participants were divided into 2 groups: patients with PXS (n=35) and controls without PXS (n=30). A complete ophthalmic examination, measurement of IOP (using an applanation tonometer), and evaluation of anterior segment parameters using a Sirius Scheimpflug/Placido topography device (CSO Italy, Firenze, Italy) were performed on all patients both prior to and 1 month after surgery. Results: No significant difference was observed between groups in terms of preoperative IOP, pupil diameter, central corneal thickness, anterior chamber depth (ACD), anterior chamber volume (ACV), iridocorneal angle (ICA), or corneal volume (CV) values. A reduction in the postoperative mean IOP value was noted in both groups, with a difference of slightly >2 mmHg in the PXS group (PXS: p=0.000, control: p=0.002). Postoperatively, a statistically significant increase was observed in both groups in the ACD, ICA, ACV, and CV measurements. When comparing the preoperative and postoperative differences of the groups, the only parameter noted to be statistically significantly different was postoperative widening of the ICA. A greater degree of widening was noted in the PXS group (13.83±6.06°) compared with the control group (10.47±6.69°) (p=0.039). Conclusion:IOP values decreased and ACD values increased significantly following phacoemulsification in the PXS and the normal eyes. These findings support results reported in the literature. However, the results related to ICA changes are a new, previously unreported contribution. To more fully comprehend the effects of cataract surgery on patients with PXS in terms of ICA changes, prospective studies with a larger cohort are needed.

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Section: Discussionmentioning

confidence: 99%

The Effect of Uneventful Phacoemulsification on Intraocular Pressure and Anterior Segment Parameters in Pseudoexfoliation Syndrome

Atik¹

2020

Beyoglu Eye J

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“…Despite these data, the evaluation of the ACA with SP has some limitations when compared with AS-OCT, due to its inability to directly visualize the SS [19,86]. For this reason, Pentacam parameters show poor correlation with gonioscopy and UBM data in closed angles [87,88].…”

Section: Scheimpflug Photography (Sp)mentioning

confidence: 99%

Anterior Chamber Angle Assessment Techniques: A Review

Riva

Micheletti

Oddone

et al. 2020

JCM

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Assessment of the anterior chamber angle (ACA) is an essential part of the ophthalmological examination. It is intrinsically related to the diagnosis and treatment of glaucoma and has a role in its prevention. Although slit-lamp gonioscopy is considered the gold-standard technique for ACA evaluation, its poor reproducibility and the long learning curve are well-known shortcomings. Several new imaging techniques for angle evaluation have been developed in the recent years. However, whether these instruments may replace or not gonioscopy in everyday clinical practice remains unclear. This review summarizes the last findings in ACA evaluation, focusing on new instruments and their application to the clinical practice. Special attention will be given to the comparison between these new techniques and traditional slit-lamp gonioscopy. Whereas ultrasound biomicroscopy and anterior segment optical coherence tomography provide quantitative measurements of the anterior segment’s structures, new gonio-photographic systems allow for a qualitative assessment of angle findings, similarly to gonioscopy. Recently developed deep learning algorithms provide an automated classification of angle images, aiding physicians in taking faster and more efficient decisions. Despite new imaging techniques made analysis of the ACA more objective and practical, the ideal method for ACA evaluation has still to be determined.

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“…An unquestioned advantage of AS-OCT and UBM over Sheimpflug imaging stems from the fact that the former two are suitable for direct visualization of the angle, ciliary body and sulcus [ 29 ]. While the abovementioned imaging methods are not essential to establish the diagnosis of iridoschisis, they may add to gonioscopy in the assessment of the iridocorneal angle.…”

Section: Clinical Characteristics and Diagnostic Imagingmentioning

confidence: 99%

Iridoschisis—A Systematic Review

Pieklarz

Grochowski

Saeed

et al. 2020

JCM

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Iridoschisis is a rare condition defined as a separation of the anterior iris stroma from the posterior stroma and muscle layers. In this paper, we review current data about the epidemiology, pathophysiology, clinical characteristics and differential diagnoses of this condition and discuss the specificity of surgical treatment of concomitant ocular diseases in iridoschisis patients. Iridoschisis may pose a challenge for both an ophthalmologist in an outpatient setting and an ophthalmic surgeon. Glaucoma, primarily angle-closure glaucoma, is the most often described condition concomitant to iridoschisis. Other ocular abnormalities found relatively often in iridoschisis patients include cataract, lens subluxation and corneal abnormalities. Special attention has been paid to potential complications of cataract surgery and prevention thereof. Beside addressing the practical aspects, we point to discrepancies and suggest topics for further investigation.

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Applications of Scheimpflug Imaging in Glaucoma Management: Current and Potential Applications

Cited by 11 publications

References 67 publications

The Effect of Uneventful Phacoemulsification on Intraocular Pressure and Anterior Segment Parameters in Pseudoexfoliation Syndrome

The Effect of Uneventful Phacoemulsification on Intraocular Pressure and Anterior Segment Parameters in Pseudoexfoliation Syndrome

Anterior Chamber Angle Assessment Techniques: A Review

Iridoschisis—A Systematic Review

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