A 40-year-old member asked:
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how long should your eye stay dilated after an exam?

3 doctor answers
Dr. Danny Proffitt
43 years experience Family Medicine
Depends: Length of time for dilation varies with the person and with the agent used to dilate the eyes and the amount of medicaion used. The doctor may want long term dilation or short term. For general exams, the pupils may dialate for 1-4 hours.
Answered on Jul 20, 2012
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Dr. Andrew Shatz
26 years experience Ophthalmology
About 4 to 6 hours: After a routine dilated eye examination, the eyes typically stay dilated for 4-6 hours. There are several different dilating drops that can be used, but the usual drop - tropicamide (mydriacyl) - lasts on average at least 4 hours. A second drop that is often used (phenylephrine) has a shorter duration (about 1-2 hours) and is used to speed up the dilation process.
Answered on Mar 14, 2018
Dr. David Speck
42 years experience Ophthalmology
Depends on the med: Several different medications can be used to dilate the eye for peripheral retinal examinations. They have different durations of action from 2 hours to 2 weeks. The most commonly used drug, mydriacyl, (tropicamide) is 1/2 gone in 2 hours, and 3/4 gone in 4 hours on average. Some people are especially sensitive to the meds, especially if you have light blue eyes, and can remain dilated for 36 - 72 hours.
Answered on Jul 17, 2018
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Related questions:

A female asked:
Dr. John Munshower
30 years experience Family Medicine
Half Life: The medications used to dilate the pupils may linger in your system and the pupils can stay dilated longer even though your vision is relatively impro ... Read More
1
1 thank
A 41-year-old member asked:
Dr. Kelvin Barry
17 years experience Podiatry
3 hours: Takes about three hours to return to normal.
1
1 thank
A 40-year-old member asked:
Dr. Hamid Sajjadi
40 years experience Ophthalmology
6-48 hrs: Depending on the drops used. The most common drop tropicamide has a dilating effect of 4-8 hrs. Next is cyclogyl (cyclopentolate) 24-48 hrs. Rare ... Read More
A 35-year-old member asked:
Dr. Richard Wieder
35 years experience Ophthalmology
Pupil dilating drops: Usually last for 4-6 hours after they are instilled. Depending on the patient, the drops may last longer, especially with people who are blue-eyed. ... Read More

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