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Moorfields Private Blog

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    Is laser eye surgery painful?

    Written by Mr Romesh Angunawela, Consultant Ophthalmic Surgeon
    • There is more than one type of laser eye surgery.
    • Whichever type of surgery is right for you, it will be performed under local anaesthetic drops.
    • We explain the treatment and aftercare.


    Read more: What are the different lasers used for laser sight correction? 

    Understandably, patients seeking laser surgery worry that the procedure may be painful.

    Laser eye surgery techniques are broadly divided into, what we call, interfacial treatments performed just beneath the corneal surface like LASIK or SMILE and surface laser techniques such as LASEK (yes, when you’re researching the subject for the first time, it can be easy to confuse LASIK and LASEK with each other) or transPRK.

    Whichever type of surgery is right for you, it will be performed under local anaesthetic drops that completely numb the surface of the eye. Surgery is typically short and takes just 10-15 minute for both eyes. Nervous patients can be given tablets to calm them prior to the surgery if they wish.

    During LASIK or SMILE, patients do not feel pain. There is a brief moment lasting 30-40 seconds when the LASIK flap or SMILE lenticule is being created where patients feel a sensation of pressure on the eye. Some describe this as feeling similar to wearing a tight pair of swimming goggles. After LASIK or SMILE, there is normally about four to six hours of mild discomfort – a bit like wearing uncomfortable contact lenses. Having said that, most patients can return to work the day after surgery.

    For patients having LASEK or TransPRK, there is no pain during the surgery as the surface of the eye is typically completely numbed by local anaesthetic drops. After surface laser treatments, a bandage contact lens is placed on the surface of the eye to protect the surface while it heals in the first week after treatment.


    Most patients will experience irritation and a feeling of grittiness in their eyes during the first two to three days after surgery. The level of discomfort after surface laser treatment will vary greatly, and can be reduced by resting with the eyes gently closed and by using the eye drops we prescribe. The discomfort always dissipates within a few days of surgery, and modern techniques like TransPRK help to speed up the recovery process. As a general rule, we recommend a week off work to allow for recovery from surface laser treatments.


    Or speak to the New Patient Enquiry Team:
    0800 328 3421



    Mr Romesh Angunawela

    Written by Mr Romesh Angunawela

    Consultant Ophthalmic Surgeon