Should I avoid night work after LASIK, and how long is the downtime?

Doctor's Answers 1

Great question on the impact of LASIK on night time vision and the practice of performing LASIK on the same day as the assessment.

Generally speaking, most patients recover well after LASIK surgery with good night time vision. Occasionally, patients may experience seeing haloes and glare which tends to be more obvious in the immediate post-operative period. The effects improves gradually over several weeks after the procedure.

Haloes and glare may become a permanent effect following LASIK for some patients. This can occur to varying degrees in different individuals. In fact, some people naturally experience the effects of haloes and glare.

Part of the purpose of the LASIK Suitability Assessment is to identify individuals who are at higher risk of developing haloes and glare and to advise them accordingly.

Most are able to function well despite the presence of haloes and glare. Where the effects can be more challenging are in occupations that involve long periods and long distances of driving at night such as long distance vehicle drivers or taxi drivers.

The average time away from regular activities, including work, after LASIK is about 3 to 4 days. Most are able to return to near normal activities with some precautions to avoid post-operative infection.

Working at night will have neither negative or positive impact on your eyes. Driving at night in itself would not cause harm to your eyes. The only limitation may be dryness of the eyes that may limit the duration in which you are able to drive continuously for long hours during the initial recovery period after LASIK.

I would not recommend for LASIK to be performed on the same day as the assessment. The accuracy of the treatment may be compromised. The reason for this is due to the fact that the pupils are dilated for the purpose of the assessment. During LASIK, this dilated pupil may not allow the laser to be properly centred on the eye, confusing the laser eye tracking function. A poorly centred treatment could result in an unsatisfactory outcome.

At my practice, we advise all our patients, including overseas patients, to have LASIK on a separate day from the assessment day in order to maximise their chances of a good surgical outcome. In all things, we favour long term quality results over short term convenience.

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Hi Susanne In the first step of the LASIK procedure, a ‘flap’ is created using a femtosecond laser (or, in the past, a special blade called a microkeratome). During this step, the laser is ‘connected’/docked to the eye with a ring-like device that grips the white part of your eye. You can watch an animation here: There are many small blood vessels on this part of the eye, and sometimes the suction pressure providing the grip may cause some of the blood vessels to leak some blood, causing red patches after the LASIK.

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