Pentacam changes in primary angle-closure glaucoma after different lines of treatment

Mokbel, Tharwat H; Elhesy, Abd-Elmonem; Alnagdy, Ahmed; Elashri, Mohammed; Eissa, Ahmed; Gaafar, Walid; Hagras, Sherein M

doi:10.18240/ijo.2020.04.10

Cited by 9 publications

(13 citation statements)

References 45 publications

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“…Crystalline lens removal and IOL implantation widen the iridotrabecular angle, deepen the anterior chamber, and increase the chamber volume. These results are in concordance with other previous reports using Pentacam, anterior segment-optical coherence tomography (OCT), and ultrasonic biomicroscopy [9,18].…”

Section: Discussionsupporting

confidence: 93%

“…However, a prospective, multicenter, randomized, controlled study called the EAGLE (Effectiveness in Angle-closure Glaucoma of Lens Extraction) protocol, including 155 primary angle closure and 263 primary angle-closure glaucoma cases, stated that clear lens extraction was more efficacious and cost-effective than LPI [7]. Many later reports have also shown IOP reduction after PE surgery in PAC and PACG cases with cataracts or clear lenses [6,8,9].…”

Section: Introductionmentioning

confidence: 99%

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Phacoemulsification Results of Eyes with Primary Angle Closure and Primary Angle Closure Glaucoma Using the Pentacam System

Ün

Comerter²

2022

Acta Medica

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Aim: To evaluate the phacoemulsification results of patients with primary angle closure (PAC) and primary angle closure glaucoma (PACG) using the Pentacam system. Method: This retrospective cohort study included patients with PAC and PACG who underwent phacoemulsification and intraocular lens implantation between 2018 and 2021 in one tertiary center. Anterior chamber parameters measured using the Pentacam system and gonioscopic and intraocular pressure (IOP) changes were evaluated preoperatively and postoperatively. Results: Nineteen eyes of 13 patients with PAC and PACG were included in the study. The mean age of the patients was 63.2 years, and 30.8% were male. The mean preoperative and postoperative third-month IOP was 21.0 ± 7.4 mmHg (11-40) and 13.7± 2.5 mmHg (9-18), respectively (p < 0.01). The mean preoperative anterior chamber angle (ACA) measured by the Pentacam system was 21.07 ± 4.16° (13-27). The mean preoperative anterior chamber depth (ACD) and the anterior chamber volume (ACV) measured by the Pentacam system were 1.79 ± 0.24 mm (1.39-2.22) and 72.55 ± 20.64 mm3 (45-109), respectively. The postoperative third-month topographic measurements were as follows: mean angle, 35.76 ± 7.32° (20.1-46.9); mean ACD, 3.52 ± 0.95 mm (1.15-4.46); and mean ACV, 133.21 ± 25.21 mm3 (81-173) (p < 0.01). Conclusion: Pentacam is a useful system to evaluate anterior segment changes after phacoemulsification in patients with PAC and PACG. Phacoemulsification was found to result in significant IOP reduction in these patients.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Phacoemulsification Results of Eyes with Primary Angle Closure and Primary Angle Closure Glaucoma Using the Pentacam System

Ün

Comerter²

2022

Acta Medica

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“…In contrast to Tham and colleagues and also our findings, in a retrospective study on the Pentacam's measurements, Mokbel and colleagues reported more significant angle widening in the phacotrabeculectomy group than in the phacoemulsification. 20 Among these different imaging modalities, the SS-ASOCT has the highest precision in measuring angle parameters. The UBM has a less axial resolution, and imaging is usually performed in the supine position, which can artifactually widen the angle because of the gravity.…”

Section: Discussionmentioning

confidence: 99%

“…This difference has been demonstrated both clinically as an increased risk of complications 15,70 and anatomically with various imaging modalities. 20,71 There are minimal data on the anatomic effect of phacotrabeculectomy on the anterior chamber drainage angle. Tham et al 19 were the pioneers in investigating the angle parameters following phacoemulsification and phacotrabeculectomy in PACG eyes.…”

Section: Discussionmentioning

confidence: 99%

Anterior Chamber Angle Changes in Primary Angle-closure Glaucoma Following Phacoemulsification Versus Phacotrabeculectomy: A Prospective Randomized Clinical Trial

Ghadamzadeh

Karimi

Moghaddam

et al. 2022

Journal of Glaucoma

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We used anterior segment optical coherence tomography to investigate anterior chamber angle in primary angle-closure glaucoma (PACG) eyes following phacoemulsification and phacotrabeculectomy. Angle widening was significantly greater after phacoemulsification up to 6 months after the surgery.Purpose: To compare anterior chamber angle following 2 common surgeries for PACG.Methods: One hundred ten glaucoma patients were evaluated in this single center, prospective, randomized clinical trial. Those with concomitant PACG and senile cataract and without a history of ocular surgery, trauma, or chronic miotic use were recruited. Monocular patients were also excluded. Finally, 52 eligible subjects were randomly assigned to phacoemulsification ("Phaco" group, 25 eyes) or phacotrabeculectomy ("Combined" group, 27 eyes) surgeries. A swept-source, anterior segment optical coherence tomography device (CASIA SS-1000 OCT) was used to image the anterior segment. Mask graders used the images to measure the following parameters before and 1 week, 1 month, and 6 months after surgery: angle opening distance at 500 µm, trabecular iris surface area at 500 µm, and trabecular iris angle at 500 µm.Results: There was no significant difference between study groups regarding best-corrected visual acuity, intraocular pressure (IOP), and the number of glaucoma medications in preoperative or postoperative visits (P > 0.076). Also, the measured angle parameters were not statistically significantly different between the 2 groups before surgery (P > 0.123). After surgery, all measured parameters were significantly increased in both groups (P < 0.0001). At the 6-month follow-up, nasal angle opening distance at 500 µm was 0.383 ± 0.027 vs. 0.349 ± 0.017, trabecular iris surface area at 500 µm was 0.141 ± 0.007 vs. 0.125 ± 0.005, and trabecular iris angle at 500 µm was 40.1 ± 12.9 vs. 34.6 ± 3.1 in Phaco and Combined groups, respectively (P < 0.0001 for all).Conclusions: Anterior chamber angle widening by anterior segment optical coherence tomography was observed in PACG patients following surgery and was significantly greater after phacoemulsification compared with combined phacotrabeculectomy at all time points. Similar IOP and medication burden were noted for up to 6 months as secondary outcomes. The contribution of angle changes to the IOP-lowering effect of phacoemulsification in PACG eyes needs further study.

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“…An automatic braking control system is an example of HRT tasks. A loss of life or catastrophic failure can occur if these tasks are delayed [ 37 ]. Thus, if a task is HRT and meets resource requirements, it will be locally computed; otherwise, it will be offloaded to a fog or cloud.…”

Section: The Et-dtco Algorithmmentioning

confidence: 99%

Efficient energy and completion time for dependent task computation offloading algorithm in industry 4.0

2021

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Rapid technological development has revolutionized the industrial sector. Internet of Things (IoT) started to appear in many fields, such as health care and smart cities. A few years later, IoT was supported by industry, leading to what is called Industry 4.0. In this paper, a cloud-assisted fog-networking architecture is implemented in an IoT environment with a three-layer network. An efficient energy and completion time for dependent task computation offloading (ET-DTCO) algorithm is proposed, and it considers two quality-of-service (QoS) parameters: efficient energy and completion time offloading for dependent tasks in Industry 4.0. The proposed solution employs the Firefly algorithm to optimize the process of the selection-offloading computing mode and determine the optimal solution for performing tasks locally or offloaded to a fog or cloud considering the task dependency. Moreover, the proposed algorithm is compared with existing techniques. Simulation results proved that the proposed ET-DTCO algorithm outperforms other offloading algorithms in minimizing energy consumption and completion time while enhancing the overall efficiency of the system.

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Pentacam changes in primary angle-closure glaucoma after different lines of treatment

Cited by 9 publications

References 45 publications

Phacoemulsification Results of Eyes with Primary Angle Closure and Primary Angle Closure Glaucoma Using the Pentacam System

Phacoemulsification Results of Eyes with Primary Angle Closure and Primary Angle Closure Glaucoma Using the Pentacam System

Anterior Chamber Angle Changes in Primary Angle-closure Glaucoma Following Phacoemulsification Versus Phacotrabeculectomy: A Prospective Randomized Clinical Trial

Efficient energy and completion time for dependent task computation offloading algorithm in industry 4.0

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