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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.
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 ...
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 dilator pupillae, innervated by sympathetic nerves from the superior cervical ganglion, cause the pupil to dilate when they contract. These muscles are sometimes referred to as intrinsic eye muscles. The sensory pathway (rod or cone, bipolar, ganglion) is linked with its counterpart in the other eye by a partial crossover of each eye's fibers.
Uveitis is a fancy word for eye diseases that cause redness and inflammation in the eye, usually in the middle layer, and Dr. Bert says it's another reason for floaters. There are several types ...
A Dallas woman suffered from migraines and a pulse in her eye. New York City doctors discovered her brain was sagging through a hole in her skull. ... affecting up to 1 in every 5,000 people ...
One pupil is dilated and unreactive, while the other is normal (in this case, the right eye is dilated, while the left eye is normal in size). This could mean damage to the oculomotor nerve (cranial nerve number 3, CN III) on the right side, or indicate the possibility of vascular involvement. Both pupils are dilated and unreactive to light.
Graziadei said that the whites of his eyes can sometimes look jaundiced, or more yellow, as a result of the condition. He said it tends to impact him more when he is worn out. "I am healthy.