New pupillometric method for the screening of visual pathologies
A new pupillometric method for the screening of visual pathologies, using the pupillary response for an automatic, objective and rapid examination of the visual field
- Eye tracking
- Retinitis pigmentosa
Prevalence and incidence of pathologies impacting vision are increasing constantly. Early detection of these diseases would improve patient management and enable a reduction of related health costs.
The diagnosis of retina pathologies involves a visual field test to establish which areas of the retina are affected, or not, by the disease. However, this test has some important limitations:
• It can take more than 10 minutes and be tiring and stressful
• Il addition, it is a subjective task, requiring a sustained attention and depending on the understanding of the task and the choice (often implicit) of a response criteria. Thus, this examination is unsuitable for certain types of patients, such as infants or people suffering from dementia
• Finally, the results often depend on the practitioner’s experience
The invention is a new pupillometric method for the screening of visual pathologies, using the pupillary response for an automatic, objective and rapid examination of the visual field.
A first prototype has been produced, and tests have been conducted on 45 patients (RP, Stargadt, Leber) and 15 healthy subjects.
- Screening of visual pathologies such as retinitis pigmentosa, glaucoma, AMD, Stargardt disease, Leber optic neuropathy, etc.
- The examination is quick: 1 to 3 minutes, depending on the number of repetitions.
- The task is simple for the patient: look straight ahead, avoiding movement and blinking
- The pupillary signal is robust, due to the number of modulation cycles
- The signal is “cleaned” before analysis, in order to remove blinking and eye movements
- The device does not require any special training, it is automatic
- The test can be used routinely for the early detection and monitoring of pathologies
- A patent application has been filed in 2018 (PCT in 2019)
HEALTH | Number ref.: #MA00486
Pupillometry, Ophtalmology, Eye tracking, Glaucoma, Retinitis pigmentosa, AMD