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COVID-19 update: We have re-opened our central London clinic. We have many additional safety and spacing measures in place to ensure we prioritise your health and wellbeing.

Understanding the different types of Laser Eye Surgery

Posted: Apr 23 2020

Understanding the different types of Laser Eye Surgery

Laser eye surgery commonly corrects short-sightedness (myopia), long-sightedness (hypermetropia), astigmatism and reading vision problems (presbyopia). The technique used to correct the conditions above are all different but are achieved through the use of a laser which reshapes the surface of the cornea and adjusts the focus of the eye.

Types of Laser Eye Surgery

Laser eye surgery commonly corrects short-sightedness (myopia), long-sightedness (hypermetropia), astigmatism and reading vision problems (presbyopia). The technique used to correct the conditions above are all different but are achieved through the use of a laser which reshapes the surface of the cornea and adjusts the focus of the eye.

Upon your initial consultation you will have various diagnostic tests carried out to determine suitability for the laser procedure and which type of procedure is best suited to you:

Lasik

This is one of the safest and most commonly performed surgical procedure worldwide with 90% of patients being suitable. An anaesthetic drop will be put into the eye to numb the surface and the procedure takes around 5-10 minutes. A femtosecond laser will create a thin flap in the corneal tissue, which the surgeon will gently reflect so the second (excimer) laser can reshape the cornea correcting the prescription. The flap will then be repositioned and the same done to the other eye. Most patients notice a drastic improvement in the following 24 hours.

Lasek

This is an alternative to the Lasik procedure and a better choice for patients who have thinner corneas, it is a surface laser eye surgery sometimes referred to as Advanced surface ablation. After the anaesthetic drops to numb the surface of the cornea, the surgeon will simply make a tiny cut with the laser and peels back the tissue on the surface of the eye (epithelium) which will remain intact throughout the procedure. Once this procedure is finished, a bandage contact lens will be inserted to aid the healing process, which is a slower visual recovery than the Lasik procedure. The bandage contact lens will be removed between 3-5 days after surgery with vision improving noticeably for weeks after the treatment.

Blended Vision

This is a procedure offered to presbyopic patients where the dominant eye is corrected for distance vision and the non-dominant eye corrected for reading/near vision. This is a reversible procedure and results in a great quality of vision throughout the day. Blended Vision is performed either by Lasik or Lasek, again dependent on the suitability for the procedure.

Presbymax

This is a procedure available only on the Schwind Amaris 1050RS laser platform. This procedure extends the depth of focus in the non-dominant eye by precisely adjusting the optics of the eye. This extended range of focus creates a smoother transition between the distance and near vision for a complete range of focus.