scholarly journals Evaluation of implanted perforated lacrimal punctal plugs using anterior segment optical coherence tomography

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Raafat Mohyeldeen Abdelrahman Abdallah ◽  
Ahmed Mohamed Kamal Elshafei ◽  
Heba Radi AttaAllah
Keyword(s):  
Optical Coherence Tomography ◽  
Anterior Segment ◽  
Tear Film ◽  
Early Postoperative Period ◽  
Optical Coherence ◽  
Proper Position ◽  
Punctal Plugs ◽  
Tear Meniscus ◽  
Tear Meniscus Height ◽  
A Prospective Study

Abstract Purpose Evaluation of the patency and position of perforated lacrimal punctal plugs implanted for treating punctal stenosis together with quantitative assessment of the precorneal tear film using anterior segment optical coherence tomography (AS-OCT). Methods In a prospective study, the lower punctum of 54 eyes of 29 patients implanted with perforated punctal plugs were examined using AS-OCT during the early postoperative period. Preoperative tear meniscus height (TMH) and tear meniscus area (TMA) were evaluated. Postoperatively, the patency of the plug, its position, TMH and TMA were evaluated, and the results were correlated with postoperative epiphora. Munk scale was used for epiphora grading. Results Using AS-OCT, 48 (88.9%) plugs were found in proper position while 6 (11.1%) were rotated. The lumen of the plugs was completely patent in 47 (87%) plugs, partially obstructed in 2 (3.7%) plugs and completely occluded in 5 (9.2%) plugs. There was a statistically significant postoperative decrease of TMH and TMA (P < 0.001) and postoperative epiphora Munk score (P < 0.001). Conclusion AS-OCT is a valuable, reliable, and noninvasive investigative tool that can detect the proper positioning, patency, and contents of the implanted perforated lacrimal punctal plugs in addition to measurement of TMH and TMA. Trial registration ClinicalTrials.gov ID: NCT04624022, https://clinicaltrials.gov/ct2/show/NCT04624022

Variability of the Analysis of the Tear Meniscus Height by Optical Coherence Tomography

2007 ◽  
Vol 84 (9) ◽  
pp. E903-E908 ◽  
Author(s):  
ETTY BITTON ◽  
ADAM KEECH ◽  
TREFFORD SIMPSON ◽  
LYNDON JONES
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Meniscus Height ◽  
Tear Meniscus ◽  
Tear Meniscus Height

scholarly journals A Controlled Study on the Correlation between Tear Film Volume and Tear Film Stability in Diabetic Patients

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Iman M. Eissa ◽  
Noha M. Khalil ◽  
Heba A. El-Gendy
Keyword(s):  
Anterior Segment ◽  
Tear Film ◽  
Controlled Study ◽  
Control Group ◽  
Diabetic Patients ◽  
Film Stability ◽  
Duration Of Diabetes ◽  
Significant Difference ◽  
Tear Meniscus ◽  
Tear Meniscus Height

Purpose. To assess the tear film quantity and correlate it with the quality and stability of the tear film in diabetics and compare them to age matched controls.Introduction. Diabetes affects tear film parameters in multiple ways. Poor metabolic control and neuropathy are postulated factors. To further understand how diabetes affects tear film parameters this study was conducted.Subjects and Methods. Tear meniscus height was measured by anterior segment OCT, along with tear thinning time, a subtype of noninvasive tear break-up time, and blinking rate per minute which were all recorded for 22 diabetic patients. Correlations between these tear film parameters were studied and then compared to 16 age matched controls.Results. A statistically significant difference was found in blinking rate between the diabetic and the control group (P=0.002), with higher blinking rate among diabetics. All tear film parameters were negatively correlated with duration of diabetes. A positive correlation was found between tear film volume and stability.Conclusion. Diabetes affects the tear film in various ways. Diabetics should be examined for dry eye signs even in absence of symptoms which may be masked by associated neuropathy. Duration of diabetes has an impact on tear film status.

Determination of Inferior Tear Meniscus Height and Inferior Tear Meniscus volume using Optical Coherence Tomography

2005 ◽  
Vol 3 ◽  
pp. S76
Author(s):  
Lyndon Jones ◽  
Shahreena Rahman ◽  
Raewyn Leech ◽  
Trefford Simpson ◽  
Desmond Fonn
Keyword(s):  
Optical Coherence Tomography ◽  
Optical Coherence ◽  
Meniscus Height ◽  
Tear Meniscus ◽  
Tear Meniscus Height

scholarly journals Fourier-Domain Optical Coherence Tomography for Monitoring the Lower Tear Meniscus in Dry Eye after Acupuncture Treatment

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Tong Lin ◽  
Lan Gong ◽  
Xiaoxu Liu ◽  
Xiaopeng Ma
Keyword(s):  
Optical Coherence Tomography ◽  
Dry Eye ◽  
Acupuncture Treatment ◽  
Sjögren Syndrome ◽  
Fourier Domain ◽  
Sjogren Syndrome ◽  
Optical Coherence ◽  
Artificial Tear ◽  
Tear Meniscus ◽  
Tear Meniscus Height

Dry eye is highly prevalent and has a significant impact on quality of life. Acupuncture was found to be effective to treat dry eye. However, little was known about the effect of acupuncture on different subtypes of dry eye. The objective of this study was to investigate the applicability of tear meniscus assessment by Fourier-domain optical coherence tomography in the evaluation of acupuncture treatment response in dry eye patients and to explore the effect of acupuncture on different subtypes of dry eye compared with artificial tear treatment. A total of 108 dry eye patients were randomized into acupuncture or artificial tear group. Each group was divided into three subgroups including lipid tear deficiency (LTD), Sjögren syndrome dry eye (SSDE), and non-Sjögren syndrome dry eye (Non-SSDE) for data analysis. After 4-week treatment, the low tear meniscus parameters including tear meniscus height (TMH), tear meniscus depth (TMD), and tear meniscus area (TMA) in the acupuncture group increased significantly for the LTD and Non-SSDE subgroups compared with both the baseline and the control groups (allPvalues < 0.05), but not for the SSDE. Acupuncture provided a measurable improvement of the tear meniscus dimensions for the Non-SSDE and LTD patients, but not for the SSDE patients.

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