T-PRK (Transepithelial Photorefractive Keratectomy)

Photorefractive Keratectomy (PRK) has been one of the most commonly used laser eye surgery technique for the past 20 years. This technique involves the surgeon removing the outermost layer of the cornea (the epithelium) in the area where the underlying cornea is to be treated with a hand held instrument. The excimer laser is then applied to the cornea to ‘shave’ a minute amount of tissue from the surface.

The technology at AAEC allows an advanced form of PRK called Transepithelial PRK (T-PRK) to be used. The laser itself removes the epithelium before proceeding to alter the corneal shape. Once the instrument to prevent blinking is in place this is the customised, Trans-Epithelial No-touch (cTEN) laser technique, available only at Ashford Advanced Eye Care. Usually, the entire laser treatment lasts for around a minute.

For more information on Laser Eye Surgery - TPRK, click here to watch a video.


T-PRK Laser


The entire procedure is carried under anesthesia drops placed onto the eye immediately before the procedure. After the procedure, the healing process commences immediately, and the epithelium begins to regenerate, healing over about four days. Most patients find that they are able to achieve useful vision within a week to 10 days after this type of laser eye surgery.

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