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| Name | Class |
|---|---|
| Tel Aviv University, Claire and Amedee Maratier Institute | UNKNOWN |
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Objective perimetry can better monitor visual field defects in RP and Glaucoma patients than conventional subjective perimetry.The PLR ( Pupil Light Reflex ) of the short and long wave ratio should be significantly higher in areas of visual field defects in RP and Glaucoma patients.
Pupil light reflex will be measured by a pupillometer in response to short and long wavelength light small spot stimulus in different area of the visual field. The PRL will be measured in four quadrant, central, 10, 20, and 30 degree from the visual axis.
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).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Glaucoma | Glaucoma Patients with visual field defects | ||
| Retinitis Pigmentosa | Retinitis Pigmentosa Patients with visual field defects |
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| Measure | Description | Time Frame |
|---|---|---|
| PLR response amplitude and latency | Not defined yet |
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Inclusion Criteria:
Exclusion Criteria:
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primary care clinic
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| Name | Affiliation | Role |
|---|---|---|
| Ygal Rotenstreich, MD | Sheba Medical Center | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Sheba Medical Center | Tel Litwinsky | Israel | 52621 | Israel |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 10380129 | Background | 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. | |
| 17573859 | Background | 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. |
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| ID | Term |
|---|---|
| D012174 | Retinitis Pigmentosa |
| D005901 | Glaucoma |
| ID | Term |
|---|---|
| D015785 | Eye Diseases, Hereditary |
| D005128 | Eye Diseases |
| D058499 | Retinal Dystrophies |
| D012162 | Retinal Degeneration |
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| 10147922 | Background | Kardon RH. Pupil perimetry. Curr Opin Ophthalmol. 1992 Oct;3(5):565-70. doi: 10.1097/00055735-199210000-00002. |
| 2052302 | Background | 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. |
| 23482470 | Derived | 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. |
| D012164 |
| Retinal Diseases |
| D030342 | Genetic Diseases, Inborn |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |
| D009798 | Ocular Hypertension |