ABSTRACT
Gas filled eye surgery is a part of treatment for vitreoretinal diseases such as retinal detachment and macular hole surgery. The patient compliance to maintain the correct position after treatment with gas filling procedure is one of key factor for successful of surgery treatment which helps to restore the vision. The objective of this study is to describe an innovation of eye shield that may improve the positioning compliance for gas filled eye patient and to demonstrate its reliability.The experiment was designed to assess the agreement of the different angles compared to a commercial inclinometer. The angulation was evaluated at 0°, 15°, 30°. 45°, 60°, 75°, 90°, 105°, 120°, 135°, 150°, 165° and 180°. The data analysis shows that the proposed devices have the same measurement as the standard measurement with an Intraclass correlation of >0.99.
Subject(s)
Patient Positioning/instrumentation , Retinal Detachment/surgery , Retinal Perforations/surgery , Vitrectomy , Humans , Reproducibility of ResultsABSTRACT
Tremor is a common symptom shared in both Parkinson's disease (PD) and Essential tremor (ET) subjects. The differential diagnosis of PD and ET tremor is important since the treatment depends on specific medication. A novel feature was developed based on a hypothesis stating that the tremor of PD subject has a larger fluctuation while performing resting task than action task. Tremor signal was collected using a gyroscope sensor attached to subject's finger. The angular velocity signal was analyzed by transforming a one-dimensional to two-dimensional signal based on relation of different units of time-delay. The tremor fluctuation was defined as the area of 95% confidence ellipse covering the two-dimensional signal. Experimenting with 32 PD and 20 ET subjects, a ratio of fluctuation of resting to kinetic task can be a sensitive feature to discriminate PD from ET with 100% accuracy.
