Search results
Results from the WOW.Com Content Network
Pupil dilation typically begins within 15 minutes and may last for 3–8 hours. [6] [7] After the pupil has been dilated, an ophthalmoscope can be used to examine the fundus. This allows for 15x magnification of the optic disc, also known as the optic nerve head, and retina to better evaluate for any ophthalmic pathology. [9]
The pupil is a hole through which the eye's interior can be viewed. For better viewing, the pupil can be opened wider (dilated; mydriasis) before ophthalmoscopy using medicated eye drops (dilated fundus examination). However, undilated examination is more convenient (albeit not as comprehensive), and is the most common type in primary care.
Tropicamide, sold under the brand name Mydriacyl among others, is a medication used to dilate the pupil and help with examination of the eye. [3] Specifically it is used to help examine the back of the eye. [4] It is applied as eye drops. [3] Effects occur within 40 minutes and last for up to a day. [3]
AC 1/4: Grade 1 anterior chamber angle: ... Pupils equal, round, reactive to light and accommodation ... This page was last edited on 8 March 2023, at 06:30 (UTC).
Dilated pupil (mydriasis) caused by cyclopentolate instilled into both eyes: Specialty: ... This page was last edited on 16 November 2024, at 15:41 (UTC).
Greater pupil diameter was observed after the items were heard (depending on how many items were heard), and decreased after items were repeated. [57] The more difficult the task, the greater pupil diameter observed from the time preceding the solution [ 58 ] until the task was completed. [ 59 ]
For example, retinoblastoma, a neuroblastic tumor that can cause a dampened or even white reflex, occurs in 1 in every 20,000 children. [4] Regardless of the effectiveness, it is a fast, inexpensive, and noninvasive exam that could identify ocular pathology which with early identification can alter the course of the disease.
For an adequate test, vision must not be entirely lost. In dim room light, the examiner notes the size of the pupils. The patient is asked to gaze into the distance, and the examiner swings the beam of a penlight back and forth from one pupil to the other, and observes the size of pupils and reaction in the eye that is lit.