scholarly journals Comparison of Visual Evoked Potential Components In Female Patients of Primary Open Angle Glaucoma with Age Matched Control Females

2013 ◽  
Vol 24 (1) ◽  
pp. 28-33
Author(s):  
Ruchi Kothari
Keyword(s):  
Visual Evoked Potential ◽  
Evoked Potential ◽  
Primary Open Angle Glaucoma ◽  
Matched Control ◽  
Open Angle Glaucoma ◽  
Open Angle ◽  
Female Patients ◽  
Visual Evoked

Visual evoked potentials (VEP) studies in primary open glaucoma

2021 ◽  
Vol 19 (3) ◽  
pp. 28-31
Author(s):  
Bhagya V ◽  
Keyword(s):  
Optic Nerve ◽  
Visual Evoked Potential ◽  
Evoked Potential ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Visual Pathway ◽  
Nerve Damage ◽  
Open Angle ◽  
Optic Nerve Damage ◽  
Visual Evoked

Background: With increasing prevalance of primary open angle glaucoma and optic nerve damage as a consequence of this, there is a need for early diagnosis and prevention of optic nerve damage. VEP, the potential recorded from the occipital region in response to the visual stimuli can be used for early detection of the primary open angle glaucoma. Visual evoked potential (VEP) is a non invasive method to assess the visual pathway. The present study was done to evaluate the impact of primary open angle glaucoma on central nervous system particularly, visual pathway. Methods: 30 primary open angle glaucoma patients attending outpatient department of ophthalmology department, SS hospital, Davanagere and 30 age matched controls selected randomly from general population were subjected to Visual evoked potential. Parameters for VEP such as latencies of waves N70, P100, and N155 peak-to-peak amplitudes of waves N70-P100 and P100-N155 were assessed and analyzed by using unpaired student-T test for comparison between cases and controls. Results: The present study observed that the there was a statistically significant increase in P100 latency in cases compared to the controls. And also there was a statistically significant decrease in N70 and P100 amplitude in cases compared to the controls. Conclusion: The present study correlates with earlier findings that visual pathway gets involved in primary open angle glaucoma even before the development of neuropathy which can be detected using VEP. Meticulous follow-up is a must to prevent the complications of primary open angle glaucoma, so that further damage can be prevented.

Accuracy of isolated-check visual evoked potential technique for diagnosing primary open-angle glaucoma

2017 ◽  
Vol 135 (2) ◽  
pp. 107-119 ◽  
Author(s):  
Li Juan Xu ◽  
Liang Zhang ◽  
Sha Ling Li ◽  
Vance Zemon ◽  
Gianni Virgili ◽  
...  
Keyword(s):  
Visual Evoked Potential ◽  
Evoked Potential ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Open Angle ◽  
Visual Evoked

scholarly journals Applications of the isolated-check visual evoked potential in primary open angle glaucoma with or without high myopia

2021 ◽  
Vol 14 (5) ◽  
pp. 704-713
Author(s):  
Xia Wang ◽  
◽  
Ya-Hui Wei ◽  
Yuan Fang ◽  
Tian Tian ◽  
...  
Keyword(s):  
High Myopia ◽  
Diagnostic Performance ◽  
Visual Evoked Potential ◽  
Evoked Potential ◽  
Primary Open Angle Glaucoma ◽  
Open Angle Glaucoma ◽  
Signal To Noise Ratio ◽  
Characteristic Curve ◽  
Open Angle ◽  
Visual Evoked

AIM: To explore the diagnostic performance of isolated-check visual evoked potential (icVEP) for primary open angle glaucoma (POAG) in both highly myopic and non-highly myopic populations and compare it with those of optical coherence tomography (OCT) and Heidelberg retinal tomography (HRT) parameters. METHODS: A total of 126 participants were recruited, including 31 highly myopic participants with POAG (HM-POAG), 36 non-highly myopic participants with POAG (NHM-POAG), 25 highly myopic participants without POAG (HM) and 34 controls without high myopia (Normal). All the participants underwent a complete ophthalmic examination. The signal-to-noise ratio (SNR) was used to assess the icVEP. Both qualitative and quantitative diagnostic performances of OCT, HRT and the icVEP were analyzed and compared. RESULTS: Based on the criterion of SNR≤1, the diagnostic performance of the icVEP in highly myopic subjects [area under the receiver operating characteristic curve (AUC)=0.862] was better than that in non-highly myopic subjects (AUC=0.789), and the SNR had fairly good specificity. In distinguishing the HM-POAG and HM groups, the AUC of the SNR was not different from those of the OCT and HRT parameters (P>0.05) in either the qualitative or quantitative comparison. In the qualitative analysis, the icVEP showed good consistency with damage to the central 10° of the visual field (kappa=0.695-0.747, P<0.001). CONCLUSION: The icVEP has the potential to discriminate individuals with and without POAG, especially in populations with high myopia.

scholarly journals Applications of Isolated-Check Visual Evoked Potential in Early Stage of Open-Angle Glaucoma Patients

2018 ◽  
Vol 131 (20) ◽  
pp. 2439-2446 ◽  
Author(s):  
Xiang Fan ◽  
Ling-Ling Wu ◽  
Xia Di ◽  
Tong Ding ◽  
Ai-Hua Ding
Keyword(s):  
Visual Evoked Potential ◽  
Evoked Potential ◽  
Early Stage ◽  
Open Angle Glaucoma ◽  
Open Angle ◽  
Visual Evoked

Phacoemulsification plus endoscopic cyclophotocoagulation versus phacoemulsification alone in primary open-angle glaucoma

2018 ◽  
Vol 28 (2) ◽  
pp. 168-174 ◽  
Author(s):  
Francisco Pérez Bartolomé ◽  
Ian A. Rodrigues ◽  
Saurabh Goyal ◽  
Edward Bloch ◽  
Wei S. Lim ◽  
...  
Keyword(s):  
Primary Outcome ◽  
Primary Open Angle Glaucoma ◽  
Outcome Measure ◽  
Matched Control ◽  
Open Angle Glaucoma ◽  
Primary Outcome Measure ◽  
Open Angle ◽  
Efficacy And Safety ◽  
Normal Limits ◽  
Clinical Records

Purpose: To examine the efficacy and safety of combined phacoemulsification and endoscopic cyclophotocoagulation (phaco-ECP) compared to phacoemulsification alone in patients with primary open-angle glaucoma (POAG). Methods: We performed a retrospective notes review of 99 consecutive clinical records of patients with POAG from 2 London eye departments. A total of 69 patients who underwent phaco-ECP and 30 sex- and age-matched control patients who underwent cataract surgery alone were included. Data on intraocular pressure (IOP), visual acuity (VA), number of ocular hypotensive medications, and postoperative complications were collected over 12 months. The primary outcome measure was defined as an IOP within normal limits (<21 mm Hg) and at least a 20% reduction in IOP from baseline. Results: Mean IOP was significantly decreased in both groups after 1 year (p<0.001 from baseline). The success rate was significantly higher in the phaco-ECP group (69.6%) than in the phaco group (40%) after 1 year (p = 0.004). Reduction in mean IOP and number of medications was also greater in the phaco-ECP group after 1 year (IOP reduction: 4.5 ± 5.13 mm Hg vs 1.83 ± 3.61 mm Hg; p = 0.007; number of medications reduction: 0.73 ± 0.71 vs 0.23 ± 0.56; p = 0.001). Both groups achieved a similar improvement in VA. There was a higher incidence of minor and self-limiting complications in the phaco-ECP group (p<0.047). Conclusions: Phaco-ECP resulted in a greater reduction in IOP and number of medications than phacoemulsification alone in POAG.

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