Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
60 participants
OBSERVATIONAL
2009-11-30
2013-01-31
Brief Summary
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Detailed Description
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Stimulus duration will be 1000 ms (1 sec), with intervals of 890 ms between stimuli. The stimuli size V with light intensity of 39.8 cd-s/m2 for both short wavelength stimuli (peak 485 nm) and long wavelength stimuli (peak 620nm).
Conditions
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Study Design
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CASE_CONTROL
PROSPECTIVE
Study Groups
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Glaucoma
Glaucoma Patients with visual field defects
No interventions assigned to this group
Retinitis Pigmentosa
Retinitis Pigmentosa Patients with visual field defects
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
2. Sign on informed consent
3. Papillary response to light.
4. Groups of : Normal , Glaucoma patients with early glaucoma damage on HVF (nasal step ect. ), Glaucoma patients with advanced glaucoma damage on HVF (arcuate , tubular vision ) and RP patients (Early VF damage , ring scotoma ) .
5. Refractive correction up to -3.5 D.
Exclusion Criteria
2. Surgical intraocular ophthalmic procedure within the past 30 days.
3. Nonreactive pupils.
4. Synechia of the iris to the lens after surgery or inflammation .
5. Neovascularization.
6. Iris coloboma.
7. Sphincter damage due to ischemia or trauma (tears of sphincter or diffuse damage to muscle).
8. Sphincter damage due to high intraocular pressure .
9. Iris tumor or cyst .
10. Ectropion uvea .
11. Adie's pupil .
12. Optic neuropathy with the potential for producing a positive RAPD (Relative Afferent Pupillary Defect ).
13. Chronic use of myotics or mydriatics.
14. Systemic Medication which affect on papillary response .
15. Any condition preventing accurate measurement or examination of the pupils.
18 Years
75 Years
ALL
Yes
Sponsors
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Tel Aviv University, Claire and Amedee Maratier Institute
UNKNOWN
Sheba Medical Center
OTHER_GOV
Responsible Party
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Dr. Ygal Rotenstreich
Director, Electrophysiology Clinic, Goldschleger Eye Institute
Principal Investigators
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Ygal Rotenstreich, MD
Role: PRINCIPAL_INVESTIGATOR
Sheba Medical Center
Locations
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Sheba Medical Center
Tel Litwinsky, Israel, Israel
Countries
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References
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Yoshitomi T, Matsui T, Tanakadate A, Ishikawa S. Comparison of threshold visual perimetry and objective pupil perimetry in clinical patients. J Neuroophthalmol. 1999 Jun;19(2):89-99.
Kalaboukhova L, Fridhammar V, Lindblom B. Relative afferent pupillary defect in glaucoma: a pupillometric study. Acta Ophthalmol Scand. 2007 Aug;85(5):519-25. doi: 10.1111/j.1600-0420.2006.00863.x. Epub 2007 Jun 15.
Kardon RH. Pupil perimetry. Curr Opin Ophthalmol. 1992 Oct;3(5):565-70. doi: 10.1097/00055735-199210000-00002.
Kardon RH, Kirkali PA, Thompson HS. Automated pupil perimetry. Pupil field mapping in patients and normal subjects. Ophthalmology. 1991 Apr;98(4):485-95; discussion 495-6. doi: 10.1016/s0161-6420(91)32267-x.
Skaat A, Sher I, Kolker A, Elyasiv S, Rosenfeld E, Mhajna M, Melamed S, Belkin M, Rotenstreich Y. Pupillometer-based objective chromatic perimetry in normal eyes and patients with retinal photoreceptor dystrophies. Invest Ophthalmol Vis Sci. 2013 Apr 17;54(4):2761-70. doi: 10.1167/iovs.12-11127.
Other Identifiers
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SHEBA-09-6958-AS-CTIL
Identifier Type: -
Identifier Source: org_study_id