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Mydriasis is the dilation of the pupil, usually having a non-physiological cause, [3] or sometimes a physiological pupillary response. [4] Non-physiological causes of mydriasis include disease, trauma, or the use of certain types of drugs.
Dilated fundus examination (DFE) is a diagnostic procedure that uses mydriatic eye drops to dilate or enlarge the pupil in order to obtain a better view of the fundus of the eye. [1] Once the pupil is dilated, examiners use ophthalmoscopy to view the eye's interior, which makes it easier to assess the retina , optic nerve head , blood vessels ...
The responses can have a variety of causes, from an involuntary reflex reaction to exposure or inexposure to light—in low light conditions a dilated pupil lets more light into the eye—or it may indicate interest in the subject of attention or arousal, sexual stimulation, [4] uncertainty, [5] decision conflict, [6] errors, [7] physical ...
This collection of pumpkin quotes is sure to come in handy when you're looking for festive fall quotes or the perfect fall Instagram caption. Just take Damien Echol's words, for instance ...
The eyelid may not protect the eye as effectively, allowing it to dry. Sagging upper eyelids can partially block the field of view. Obstructed vision may necessitate tilting the head backward to speak. The areas around the eyes may become tired and achy. Eyebrows may be constantly lifted to see properly. Some of the risk factors for ptosis include:
If you're doing a full eye makeup look, Allan says you can never go wrong with a smoky eye, and can even use it to make your eyes look bigger. "The key is to work with your eye shape," he says.
Light entering the eye strikes three different photoreceptors in the retina: the familiar rods and cones used in image forming and the more newly discovered photosensitive ganglion cells. The ganglion cells give information about ambient light levels, and react sluggishly compared to the rods and cones.
Celebrate St. Patrick's Day with one of these short, funny or traditional Irish sayings. Use these expressions for Instagram or send to friends and family.