How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dr. A.S. Desai Your Own Question
Dr. A.S. Desai
Dr. A.S. Desai, Ophthalmologist
Category: Eye
Satisfied Customers: 2436
Experience:  MS Ophthalmology with 13 years of surgical expereince
25407765
Type Your Eye Question Here...
Dr. A.S. Desai is online now
A new question is answered every 9 seconds

I had lasik 6 months ago. my vision is fluctuating and they

Resolved Question:

i had lasik 6 months ago.
my vision is fluctuating and they did a dry eye test.
You know they put some dye in my eyes and told me to close my eyes and then under the lamp they told me to open it and they said that it got dry in like 2 seconds. How bad is this? Is this normal with post lasik.
Submitted: 5 years ago.
Category: Eye
Expert:  Dr. A.S. Desai replied 5 years ago.
Dr. A.S. Desai :

Hello, Welcome to Just Answer

Dr. A.S. Desai :

Are you available for chat now?

Dr. A.S. Desai :

The test done is called tear film break up time(TBUT) and is done to detect dry eyes. Post-lasik it is quite common for dry eyes to be present.

Dr. A.S. Desai :

Normally the TBUT time is above 10 seconds, 5-10 seconds is marginal while less than 2 seconds is a high indicator of dry eyes.

Dr. A.S. Desai :

Dry eyes can persist beyond 6 months also post lasik.

Dr. A.S. Desai :

Sometimes it might even persist upto an year after lasik too.

Dr. A.S. Desai :

Are you there?

Dr. A.S. Desai :

Vision fluctuation could be due to the severity of dry eyes. Continous use of lubricating eye drops would help.

Dr. A.S. Desai :

Looks like something is wrong with the chat system as I am unable to see your replies.

Dr. A.S. Desai :

I'll switch over to the Q&A system so that you can view the answer later.

Dr. A.S. Desai :

Please feel free to ask additional follow up questions, if any.

Dr. A.S. Desai :

Thank you and best wishes.

If you are satisfied with the answer , please press the accept button so that I get my dues.

A bonus and/or positive feedback are welcome.

Views expressed are for information purpose only and cannot substitute a visit to an ophthalmologist

Customer: replied 5 years ago.
Is it normal after 6 nonths
Expert:  Dr. A.S. Desai replied 5 years ago.
Did you get to see my replies?

The test done is called tear film break up time(TBUT) and is done to detect dry eyes. Post-lasik it is quite common for dry eyes to be present.

Normally the TBUT time is above 10 seconds, 5-10 seconds is marginal while less than 2 seconds is a high indicator of dry eyes.

Dry eyes can persist beyond 6 months also post lasik.

Sometimes it might even persist upto an year after lasik too.

Dr. A.S. Desai :

Are you there?

Vision fluctuation could be due to the severity of dry eyes. Continous use of lubricating eye drops would help.

Looks like something is wrong with the chat system as I am unable to see your replies.

I'll switch over to the Q&A system so that you can view the answer later.

Please feel free to ask additional follow up questions, if any.

Customer: replied 5 years ago.
ok so 2 seconds wow. They are dry.
Expert:  Dr. A.S. Desai replied 5 years ago.
it defintely shows that there is significant dry eyes. Treatment is in the form of regular use of lubricating eye drops such as preservative free refresh tears eye drops , one drop 6 times a day. The dry eyes significantly improves with time say about an year or so. So I guess you can continue to regularly use the lubricating eye drops as prescribed to you for another 6 months.

Thank you and best wishes.

If you are satisfied with the answer , please press the accept button so that I get my dues.

A bonus and/or positive feedback are welcome.

Views expressed are for information purpose only and cannot substitute a visit to an ophthalmologist
Dr. A.S. Desai and other Eye Specialists are ready to help you