Eyelid Position Interdependence in Involutional Ptosis Patients Submitted to 10% Phenylephrine
The primary aim of this study is to quantify eyelid position changes in tested and opposite eyes in ptosis patients submitted to 1, 2 or 4 drops of 10% phenylephrine in one eye. The secondary objective is to correlate the eye dominance, severity and laterality of ptosis with eyelid position changes in these 3 groups.
This is a prospective observational study conducted in involutional ptosis patients, which will be submitted to instillation of a single drop of 10% phenylephrine in one eye(Group 1), 2 drops (G2) or 4 drops ( G3).
Video camera will record the images of both eyes before and after drug application at 3, 10, 15 and 30 minutes. The images will be edited to analyze upper and lower lid height.
Observational Model: Cohort, Time Perspective: Prospective
Ophthalmology Dept. University of Sao Paulo General Hospital
University of Sao Paulo
Results (where available)
- Source: http://clinicaltrials.gov/show/NCT00864656
- Information obtained from ClinicalTrials.gov on July 15, 2010
Medical and Biotech [MESH] Definitions
Drooping of the upper lid due to deficient development or paralysis of the levator palpebrae muscle.
A syndrome associated with defective sympathetic innervation to one side of the face, including the eye. Clinical features include MIOSIS; mild BLEPHAROPTOSIS; and hemifacial ANHIDROSIS (decreased sweating)(see HYPOHIDROSIS). Lesions of the BRAIN STEM; cervical SPINAL CORD; first thoracic nerve root; apex of the LUNG; CAROTID ARTERY; CAVERNOUS SINUS; and apex of the ORBIT may cause this condition. (From Miller et al., Clinical Neuro-Ophthalmology, 4th ed, pp500-11)
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