Is There Any Leftover Radiation?

Posted on Thu, 24 Jul 2025

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

Thu, 24 Jul 2025 Answered on

10 hours ago Last reviewed on

Question : I was taking someone else to have a ct scan. The nurse told me to wait outside the room during the ct scan, then when the scan was done she told me to enter the room. Is it safe to enter the ct scan room after the ct scan is done, is there any leftover radiation? I was wearing eyeglasses; can any leftover radiation (if there is any) affect or cause any changes to eyeglasses or eyeglass lens such as optical properties of eyeglasses such as clarity of eyeglass lens?

Answered by Dr. Harshita (15 hours later)

Brief Answer:
No dont worry there is no harm

Detailed Answer:
Hey thanks for the question. There is no harm once CT is done and eye glasses offer extra protection so dont worry . Hope my answe helped you.

Above answer was peer-reviewed by : Dr. LAKSHMI

Follow up: Dr. Harshita (14 hours later)

But walking into a ct room after a ct scan is done, would doing this affect or cause any changes to eyeglasses or eyeglass lens such as optical properties of eyeglasses such as clarity of eyeglass lens? Thank you.

Answered by Dr. Harshita (39 hours later)

Brief Answer:
No it doesnt

Detailed Answer:
Hey thanks for the follow up . No it doesnt cause any change in the eye glasses dont worry.

Above answer was peer-reviewed by : Dr. Dr. Nagamani N.G

Follow up: Dr. Harshita (2 days later)

So there will not be any change to eyeglasses or eyeglass lens such as clarity of eyeglass lens or any other change in optical properties of eyeglasses caused by or as a result of walking into a ct room after the ct scan is done? I assume the ct scan is done because nurse told me to enter the room.

Answered by Dr. Harshita (42 hours later)

Brief Answer:
Yes don't worry

Detailed Answer:
Hey thanks for the follow up . Yes there will not be any change to eyeglasses or eyeglass lens, if the CT scan is done and the nurse told you to come in.

Regards

Above answer was peer-reviewed by : Dr. Vaishalee Punj

Follow up: Dr. Harshita (3 days later)

What if the nurse accidentally did not turn off the ct scan, and I walked into the room and left soon after can radiation from ct scan affect or cause any changes to eyeglasses or eyeglass lens such as optical properties of eyeglasses such as clarity of eyeglass lens? Thank you.

Answered by Dr. Harshita (3 days later)

Brief Answer:
The time duration is very less

Detailed Answer:
Hey thanks for the follow up. The time duration is very less so it wont affect much . Hope it helps

Above answer was peer-reviewed by : Dr. Vaishalee Punj