Prescription eye drop bottles elute drops that exceed the capacity of the human eye by five times. This study describes performing in clinic dilation using a novel solution for combating medical waste with Nanodropper, an eye drop bottle adapter that creates smaller eye drops.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
50
Device used for administering eye drops
Standard Eye Dropper used for administering eye drops
University of California, San Francisco
San Francisco, California, United States
Spherical Equivalent
Cycloplegia is the paralysis of the ciliary muscle of the eye resulting in dilatation of the pupil and paralysis of accommodation. Cycloplegia is defined as the "change score." Change scores were calculated by subtracting the spherical equivalent value after dilation from the value before dilation for each eye.
Time frame: Before dilation and 30 minutes after dilation
Maximum Pupil Diameter
The pupil is the opening in the center of the iris (the structure that gives our eyes their color). The diameter is a straight line passing from side to side through the center of the pupil, which is shaped like a circle.
Time frame: Before dilation and 30 minutes after dilation
Constriction Percentage
Pupillary constriction percentage was calculated by the pupillometer in response to a 180-micro watt flash: (maximum - minimum) / maximum
Time frame: Before and 30 minutes after dilation
Change in Intraocular Pressure
Intraocular pressure is the pressure, or force, inside of your eyes. Specifically, it's a measurement of the fluid pressure in your aqueous humor.
Time frame: Before and 30 minutes After Dilation
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