SD-OCT Multimodal Analysis in GLaucoma

Glaucoma Clinical Trial

— SOMAL  

Official title:

SD-OCT Multimodal Analysis in GLaucoma

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT02710916
• Other study ID #: CHUBX 2015/20
• Status: Completed
• Phase: N/A
• Start date: February 22, 2016
• Est. completion date: December 21, 2018

Study information

• Verified date: July 2019
• Source: University Hospital, Bordeaux
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Glaucoma is the first cause of irreversible blindness worldwide with more than 60 millions people affected in 2010. It is defined as a neurodegenerative disease characterized by a progressive loss of retinal ganglion cells (RGC), visual field deterioration and optic nerve excavation. Intraocular pressure (IOP) is the most common risk factor. Despite its severity, its impact on quality of life and an existing treatment that can delay visual field damages, there is no recommended strategy to screen the disease. Clinical evaluation of optic nerve head excavation performed either by ophthalmologists or glaucoma specialists is highly inter-observer dependent and limits its accuracy to diagnose glaucoma. Additionally, up to 30 to 40% of nerve fiber layer may be lost before detecting first visual field defects, thus making this tool not accurate enough for screening purposes.

Spectral-Domain Optical coherence tomography (SD-OCT) imaging technology allows precise and reproducible measurements of optic nerve head structures and retinal layers mainly related to the speed of acquisition and an axial resolution of 5 microns. New SD-OCT parameters have been developed to improve its diagnostic accuracy for glaucoma disease. The investigators therefore investigate performances of SD-OCT to discriminate glaucoma patients and controls. All subjects will undergo SD-OCT imaging (Spectralis™ OCT, Version 6.3, Heidelberg Engineering, Germany) and other study procedures in one single visit. All examinations performed on the subjects are non-significant risk.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 109
• Est. completion date: December 21, 2018
• Est. primary completion date: December 21, 2018
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 40 Years and older

Eligibility

Inclusion Criteria: Normal Subjects

1. No history or evidence of retinal pathology or glaucoma

2. Normal Humphrey 24-2 Visual Field (VF) : A mean defect (MD), corrected pattern standard deviation (CPSD) within 95% limits of normal reference, and glaucoma hemifield test (GHT) within normal limits (97%).

3. Intraocular pressure < 21 mm Hg

4. Open angle (Shaffer's grading system)

5. Normal appearing Optic Nerve Hypoplasia (ONH) and Nerve Fiber Layer (NFL) : intact neuroretinal rim without peripapillary hemorrhages, notches, localized pallor, or NFL defect

6. Symmetric ONH between left and right eyes: Cup-to-Disc Ratio (CDR) difference < 0.2 in both vertical and horizontal dimensions

Inclusion Criteria: Perimetric Glaucoma

1. ONH or NFL defect visible on slit-lamp biomicroscopy defined as one of following:

• diffuse or localized thinning of the rim

• disc (splinter) hemorrhage

• notch in the rim

• vertical cup/disc ratio greater than the fellow eye by > 0.2

2. Consistent glaucomatous pattern on both qualifying Humphrey Swedish Interactive Threshold Algorithm (SITA) 24-2 VF meeting at least one of the following quantitative criteria for abnormality:

• PSD outside normal limits (p < 0.05)

• GHT outside normal limits (p < 0.01)

Inclusion Criteria: Pre-Perimetric Glaucoma (PPG)

PPG participants must have at least one eye meeting all of the following criteria:

1. ONH or NFL defect visible on slit-lamp biomicroscopy defined as one of following:

• diffuse or localized thinning of the rim

• disc (splinter) hemorrhage

• notch in the rim

• well-defined peripapillary NFL bundle defect.

• inter-eye vertical CDR asymmetry > 0.2

2. Baseline VF not meeting the criteria for the PG group.

3. Risk factors for glaucoma, one of following:

• Intraocular pressure > 21 mm Hg

• Ethnics

• Family history of glaucoma

Exclusion Criteria: All Groups

1. Age < 40

2. Refractive error of > +6.00 D or < -6.00 D (SE), +3,00 D for astigmatism

3. Diabetic retinopathy

4. Other diseases that may cause VF loss or optic disc abnormalities

5. Inability to clinically view or photograph the optic discs due to media opacity or poorly dilating pupil

6. Inability to perform reliably on automated VF testing

7. Insufficient quality of Spectralis OCT images (this is not determined until after Spectralis OCT examination, and is an unusual circumstance). Minimum requirements are:

• Retina completely included in image frame,

• Quality Score = 15 in the stored mean images,

8. Refusal of informed consent

Related Conditions & MeSH terms

• Eye Diseases
• Glaucoma
• Ocular Hypertension

Intervention

Device:
• SD-OCT Spectralis
All patients will undergo a complete ophthalmological examination with SD-OCT complete evaluation

Locations

Country	Name	City	State
France	University Bordeaux Hospital	Bordeaux	Aquitaine

Sponsors (1)

Lead Sponsor	Collaborator
University Hospital, Bordeaux

Country where clinical trial is conducted

France, 

References & Publications (26)

Alasil T, Wang K, Keane PA, Lee H, Baniasadi N, de Boer JF, Chen TC. Analysis of normal retinal nerve fiber layer thickness by age, sex, and race using spectral domain optical coherence tomography. J Glaucoma. 2013 Sep;22(7):532-41. doi: 10.1097/IJG.0b013e318255bb4a. — View Citation

Alasil T, Wang K, Yu F, Field MG, Lee H, Baniasadi N, de Boer JF, Coleman AL, Chen TC. Correlation of retinal nerve fiber layer thickness and visual fields in glaucoma: a broken stick model. Am J Ophthalmol. 2014 May;157(5):953-59. doi: 10.1016/j.ajo.2014.01.014. Epub 2014 Jan 30. — View Citation

Almobarak FA, O'Leary N, Reis AS, Sharpe GP, Hutchison DM, Nicolela MT, Chauhan BC. Automated segmentation of optic nerve head structures with optical coherence tomography. Invest Ophthalmol Vis Sci. 2014 Feb 26;55(2):1161-8. doi: 10.1167/iovs.13-13310. — View Citation

Burgoyne CF, Downs JC, Bellezza AJ, Suh JK, Hart RT. The optic nerve head as a biomechanical structure: a new paradigm for understanding the role of IOP-related stress and strain in the pathophysiology of glaucomatous optic nerve head damage. Prog Retin Eye Res. 2005 Jan;24(1):39-73. Review. — View Citation

Burgoyne CF, Morrison JC. The anatomy and pathophysiology of the optic nerve head in glaucoma. J Glaucoma. 2001 Oct;10(5 Suppl 1):S16-8. Review. — View Citation

Bussel II, Wollstein G, Schuman JS. OCT for glaucoma diagnosis, screening and detection of glaucoma progression. Br J Ophthalmol. 2014 Jul;98 Suppl 2:ii15-9. doi: 10.1136/bjophthalmol-2013-304326. Epub 2013 Dec 19. Review. — View Citation

Chauhan BC, O'Leary N, AlMobarak FA, Reis ASC, Yang H, Sharpe GP, Hutchison DM, Nicolela MT, Burgoyne CF. Enhanced detection of open-angle glaucoma with an anatomically accurate optical coherence tomography-derived neuroretinal rim parameter. Ophthalmology. 2013 Mar;120(3):535-543. doi: 10.1016/j.ophtha.2012.09.055. Epub 2012 Dec 23. — View Citation

Downs JC, Roberts MD, Burgoyne CF. Mechanical environment of the optic nerve head in glaucoma. Optom Vis Sci. 2008 Jun;85(6):425-35. doi: 10.1097/OPX.0b013e31817841cb. Review. — View Citation

El Chehab H, Delbarre M, Maréchal M, Rosenberg R, Marill AF, Fénolland JR, Renard JP. [New neuroretinal rim analysis with spectral domain optical coherence tomography, Spectralis (Heidelberg Engineering, Germany). Preliminary study]. J Fr Ophtalmol. 2015 Jan;38(1):46-52. doi: 10.1016/j.jfo.2014.10.004. Epub 2015 Jan 6. French. — View Citation

Horn FK, Mardin CY, Laemmer R, Baleanu D, Juenemann AM, Kruse FE, Tornow RP. Correlation between local glaucomatous visual field defects and loss of nerve fiber layer thickness measured with polarimetry and spectral domain OCT. Invest Ophthalmol Vis Sci. 2009 May;50(5):1971-7. doi: 10.1167/iovs.08-2405. Epub 2009 Jan 17. — View Citation

Johnstone J, Fazio M, Rojananuangnit K, Smith B, Clark M, Downs C, Owsley C, Girard MJ, Mari JM, Girkin CA. Variation of the axial location of Bruch's membrane opening with age, choroidal thickness, and race. Invest Ophthalmol Vis Sci. 2014 Mar 28;55(3):2004-9. doi: 10.1167/iovs.13-12937. — View Citation

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Langenegger SJ, Funk J, Töteberg-Harms M. Reproducibility of retinal nerve fiber layer thickness measurements using the eye tracker and the retest function of Spectralis SD-OCT in glaucomatous and healthy control eyes. Invest Ophthalmol Vis Sci. 2011 May 18;52(6):3338-44. doi: 10.1167/iovs.10-6611. — View Citation

Leaney J, Healey PR, Lee M, Graham SL. Correlation of structural retinal nerve fibre layer parameters and functional measures using Heidelberg Retinal Tomography and Spectralis spectral domain optical coherence tomography at different levels of glaucoma severity. Clin Exp Ophthalmol. 2012 Nov;40(8):802-12. doi: 10.1111/j.1442-9071.2012.02807.x. Epub 2012 Jul 2. — View Citation

Leibowitz HM, Krueger DE, Maunder LR, Milton RC, Kini MM, Kahn HA, Nickerson RJ, Pool J, Colton TL, Ganley JP, Loewenstein JI, Dawber TR. The Framingham Eye Study monograph: An ophthalmological and epidemiological study of cataract, glaucoma, diabetic retinopathy, macular degeneration, and visual acuity in a general population of 2631 adults, 1973-1975. Surv Ophthalmol. 1980 May-Jun;24(Suppl):335-610. — View Citation

Leung CK, Choi N, Weinreb RN, Liu S, Ye C, Liu L, Lai GW, Lau J, Lam DS. Retinal nerve fiber layer imaging with spectral-domain optical coherence tomography: pattern of RNFL defects in glaucoma. Ophthalmology. 2010 Dec;117(12):2337-44. doi: 10.1016/j.ophtha.2010.04.002. Epub 2010 Aug 3. — View Citation

Leung CK, Lam S, Weinreb RN, Liu S, Ye C, Liu L, He J, Lai GW, Li T, Lam DS. Retinal nerve fiber layer imaging with spectral-domain optical coherence tomography: analysis of the retinal nerve fiber layer map for glaucoma detection. Ophthalmology. 2010 Sep;117(9):1684-91. doi: 10.1016/j.ophtha.2010.01.026. Epub 2010 Jul 21. — View Citation

Sommer A, Tielsch JM, Katz J, Quigley HA, Gottsch JD, Javitt J, Singh K. Relationship between intraocular pressure and primary open angle glaucoma among white and black Americans. The Baltimore Eye Survey. Arch Ophthalmol. 1991 Aug;109(8):1090-5. — View Citation

Strouthidis NG, Grimm J, Williams GA, Cull GA, Wilson DJ, Burgoyne CF. A comparison of optic nerve head morphology viewed by spectral domain optical coherence tomography and by serial histology. Invest Ophthalmol Vis Sci. 2010 Mar;51(3):1464-74. doi: 10.1167/iovs.09-3984. Epub 2009 Oct 29. — View Citation

Strouthidis NG, Yang H, Downs JC, Burgoyne CF. Comparison of clinical and three-dimensional histomorphometric optic disc margin anatomy. Invest Ophthalmol Vis Sci. 2009 May;50(5):2165-74. doi: 10.1167/iovs.08-2786. Epub 2009 Jan 10. — View Citation

Strouthidis NG, Yang H, Fortune B, Downs JC, Burgoyne CF. Detection of optic nerve head neural canal opening within histomorphometric and spectral domain optical coherence tomography data sets. Invest Ophthalmol Vis Sci. 2009 Jan;50(1):214-23. doi: 10.1167/iovs.08-2302. Epub 2008 Aug 8. — View Citation

Weinreb RN, Khaw PT. Primary open-angle glaucoma. Lancet. 2004 May 22;363(9422):1711-20. Review. — View Citation

Wessel JM, Horn FK, Tornow RP, Schmid M, Mardin CY, Kruse FE, Juenemann AG, Laemmer R. Longitudinal analysis of progression in glaucoma using spectral-domain optical coherence tomography. Invest Ophthalmol Vis Sci. 2013 May 1;54(5):3613-20. doi: 10.1167/iovs.12-9786. — View Citation

Windisch BK, Harasymowycz PJ, See JL, Chauhan BC, Belliveau AC, Hutchison DM, Nicolela MT. Comparison between confocal scanning laser tomography, scanning laser polarimetry and optical coherence tomography on the ability to detect localised retinal nerve fibre layer defects in glaucoma patients. Br J Ophthalmol. 2009 Feb;93(2):225-30. doi: 10.1136/bjo.2008.141945. Epub 2008 Sep 2. — View Citation

Wu H, de Boer JF, Chen TC. Diagnostic capability of spectral-domain optical coherence tomography for glaucoma. Am J Ophthalmol. 2012 May;153(5):815-826.e2. doi: 10.1016/j.ajo.2011.09.032. Epub 2012 Jan 20. — View Citation

Wu H, de Boer JF, Chen TC. Reproducibility of retinal nerve fiber layer thickness measurements using spectral domain optical coherence tomography. J Glaucoma. 2011 Oct;20(8):470-6. doi: 10.1097/IJG.0b013e3181f3eb64. — View Citation

* Note: There are 26 references in all — Click here to view all references

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Evaluation of Bruch's Membrane Opening Minimum Rim Width	Diagnostic accuracy of SD-OCT to discriminate perimetric, preperimetric glaucoma patients and control patients	1 day
Secondary	Evaluation of Retinal Nerve Fiber Layer Thickness		1 day