Comparison Between Anterior Segment Optical Coherence Tomography and Ultrasound Bio Microscopy Parameters in Glaucoma Assessment
NCT ID: NCT05730478
Last Updated: 2024-11-15
Study Results
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Basic Information
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ACTIVE_NOT_RECRUITING
50 participants
OBSERVATIONAL
2023-03-01
2025-01-01
Brief Summary
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Detailed Description
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UBM has been used in imaging and quantitative evaluation of anterior ocular segments since the 1990s. It allows in vivo observation of the anatomy and pathology of the anterior segments, from the conjunctiva and cornea to the iris and basal vitreous body, which provides significant information on glaucoma, cysts, neoplasms, trauma and foreign bodies. UBM also provides biometric information of anterior segment structures, such as anterior chamber (AC) depth, anterior chamber angle (ACA), and iris thickness. UBM provides more detailed information compared to slit-lamp, gonioscopy or B-scan examinations for diagnosis and follow-up of PAC eyes.In some cases UBM elucidates the mechanism of elevated intraocular pressure by showing the relationship between the peripheral iris and the trabecular meshwork. It can be used to study the causes of secondary glaucoma, for example, the pigment dispersion syndrome, lens-induced glaucoma, ciliary block, cysts, and solid tumors of the anterior segment. It can also assess the effects of various interventions such as laser iridotomy, trabeculectomy, and non-penetrating drainage surgery. Precise quantitative evaluation of the anterior chamber angle structures can help in diagnosis and management of various pathologies related to glaucoma . Optical coherence tomography (OCT) is a widely used non-invasive fundus imaging technique. Since the first application of OCT in the cornea in 2002\], anterior segment-optical coherence tomography (AS-OCT) has developed rapidly. There are two major OCT platforms on the market: time domain-optical coherence tomography (TD-OCT) and spectral (or Fourier) domain-optical coherence tomography (SD/FD-OCT) . With a higher imaging resolution than UBM, AS-OCT makes it easier for the operator and software to identify ACA structures. such as: the scleral spur (SS), iris surface, Schwalbe's line, even trabecular meshwork (TM), and Schlemm's canal. This provides more precise analysis of the angle opening distance (AOD) from the SS, ACA, trabecular iris angle (TIA), and trabecular iris space area (TISA)
Conditions
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Study Design
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OTHER
OTHER
Study Groups
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ASOCT and UBM parameters Comparison
comparison between ASOCT and UBM parameters in glaucoma ASSESMENT
ASOCT&UBM
glaucoma assesment by ASOCT \&UBM
Glaucoma therapy
ASOCT and UBM parameters Comparison
Glaucoma therapy
Comparison
Interventions
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ASOCT&UBM
glaucoma assesment by ASOCT \&UBM
Glaucoma therapy
ASOCT and UBM parameters Comparison
Glaucoma therapy
Comparison
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
75 Years
ALL
No
Sponsors
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Sohag University
OTHER
Responsible Party
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Marwa Adel Omar
Resident doctor at ophthalmology department in sohag teaching hospital
Principal Investigators
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Osama Ali, professor
Role: STUDY_DIRECTOR
Sohag University
Islam Saad, Assistant
Role: STUDY_DIRECTOR
Sohag University
Mohamed Ezz, lecturer
Role: STUDY_CHAIR
Sohag University
Locations
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Marwa Adel,
Sohag, , Egypt
Countries
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References
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Casson RJ, Chidlow G, Wood JP, Crowston JG, Goldberg I. Definition of glaucoma: clinical and experimental concepts. Clin Exp Ophthalmol. 2012 May-Jun;40(4):341-9. doi: 10.1111/j.1442-9071.2012.02773.x. Epub 2012 Apr 5.
Barkana Y, Dorairaj SK, Gerber Y, Liebmann JM, Ritch R. Agreement between gonioscopy and ultrasound biomicroscopy in detecting iridotrabecular apposition. Arch Ophthalmol. 2007 Oct;125(10):1331-5. doi: 10.1001/archopht.125.10.1331.
Dada T, Mohan S, Sihota R, Gupta R, Gupta V, Pandey RM. Comparison of ultrasound biomicroscopic parameters after laser iridotomy in eyes with primary angle closure and primary angle closure glaucoma. Eye (Lond). 2007 Jul;21(7):956-61. doi: 10.1038/sj.eye.6702360. Epub 2006 May 5.
Wirbelauer C, Scholz C, Haberle H, Laqua H, Pham DT. Corneal optical coherence tomography before and after phototherapeutic keratectomy for recurrent epithelial erosions(2). J Cataract Refract Surg. 2002 Sep;28(9):1629-35. doi: 10.1016/s0886-3350(02)01366-4.
Reinstein DZ, Gobbe M, Archer TJ. Anterior segment biometry: a study and review of resolution and repeatability data. J Refract Surg. 2012 Jul;28(7):509-20. doi: 10.3928/1081597X-20120620-02.
Sharma R, Sharma A, Arora T, Sharma S, Sobti A, Jha B, Chaturvedi N, Dada T. Application of anterior segment optical coherence tomography in glaucoma. Surv Ophthalmol. 2014 May-Jun;59(3):311-27. doi: 10.1016/j.survophthal.2013.06.005. Epub 2013 Oct 15.
Related Links
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Related Info
Other Identifiers
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MAOmar
Identifier Type: -
Identifier Source: org_study_id
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