No Touch Laser (Eye Laser Surgery)

No Touch Laser


In conventional laser treatments that have been in use for a long time to get rid of glasses and contact lenses the eye must be “touched”. This can cause anxiety in patients who choose to have laser surgery. The laser method called TransPRK (No Touch Laser) technique prevents this worry. There is no contact with the laser device in this method. It is enough for the patient to look at a remote light source for seconds for treatment to be completed.

What is the difference between TransPRK (No Touch Laser) method and other laser treatment methods? In classical treatment methods LASIK andintraLASIK (femto-second)  techniques, the corneal tissue in the eye is cut with a special knife or laser and then treated. In the PRKmethod, the front wall of the eye is eroded with alcohol and then treated.In the  No Touch Lasertreatment this is not done, treatment takes place in one step. In this method, it is sufficient to look at a distant light source for less than 50 seconds. This method reduces the risk of high-grade astigmatism and surgery-related progressive corneal dilation called ectasia, which is seen after LASIK and femtosecond (intraLASIK, i-LASIK) treatments to zero. In addition, the risk of retinal rupture, which can be caused by the vacuum (suction) ring, which is applied in the LASIK and femtosecond methods, is completely eliminated.

Which patients can this method be applied to? Can be applied to those with myopia, hypermetropia and astigmatism whose eye structure is suitable. So, patients with far and near sightedness may be candidates for this treatment.  In some cases, No Touch Laser treatment can be the only way to solve the problem, especially in cases of thin cornea and normal corneal surface.

How is the application carried out? No Touch Laser treatment is carried out with only anesthetic drops, and the patient does not feel any pain during application. There is no device contact with the eye during the treatment, direct treatment is performed with the rays emitted from the laser device. After the treatment, the eyes do not have to be closed, the patient can go home with both eyes open. The treatment is performed on both eyes in the same treatment session. After going home, the patient develops complaints such as stinging in the eyes, flushing, disturbing light and blurred small text on TV for 36 hours. On the fourth day after the treatment, the patient may begin to work on the computer and drive.

What is the application in night vision problems? In wavefrontpractice, also known as ‘eagle eye’ colloquially, light scattering and deviations in the eye are measured and laser treatment is adjusted accordingly. When these deflections which can not be corrected even with glasses or lenses are corrected with the wavefront technique, appropriate treatment for the eye structure of the person is achieved. As a result, the night vision of the patient increases and the complaints of the dazzling type produced by the car headlights coming at night come to an end.

Why No Touch Laser?

  • Treatment occurs without eye contact with the machine.
  • Treatment is completed within seconds.
  • The membrane is not lifted from the eye, the eye is not scored, parts are not removed from the eye.
  • The epithelium that covers the eye is not cleaned with alcohol, and epithelial excavation is not performed.
  • There is no pain during treatment.
  • The two eyes are treated in the same session.
  • Eyes are not closed after treatment.
  • Patients with thin cornea can be treated.
  • Ectasia risk is next to zero.
  • The risk of retinal tear is zero.
  • Membrane crumpling, cell accumulation under the membrane problems do not occur.
  • Can be applied to those with myopia, hypermetropia and astigmatism.
  • The post-treatment eye dryness is of low severity and is transient.
  • While long term protection of the eyes is required in treatment such as LASIK, femto-second, this kind of protection is no longer required following No Touch Laser treatment after 3-4 days.
  • It is possible to enter the sea and the pool from the 7th day after the treatment.

TransPRK (No Touch Laser) treatment was first used in Germany and is currently approved by official authorities in Japan, Russia, America and many other countries throughout the European Union.

In our country, some of the private sector hospitals and some of the Education and Research Hospitals affiliated to the Ministry of Health apply this treatment.

göz ameliyatı


The scientific literature on the No Touch Laser (TransPRK) method is presented below:

1. Advanced Surface Laser Ablation: A True No-Touch Technique, June 2011

M. Aslanides, MD, PHD, MBA, FRCOPHTH; S. Padroni, MD, MRCOPHTH, MSc. Cataract & Refractive Surgery Today Europe, Supplement, June 2011.

2. Single-Step Transepithelial PRK (Trans-PRK) vs Alcohol-Assisted PRK and Compound Astigmatism Correction.

Kaluzny BJ, Cieslinska I, Mosquera SA, Verma S. Medicine, February 2016.

3. A pharmalogical modification of pain and epithelial healing in contemporary transepithelial all-surface laser ablation (ASLA)

Ioannis M Aslanides, Vasilis D Selimis, Nikolaos V Bessis, Panagiotis N Georgoudis. Clinical Ophthalmology, 2015

4. One-Step Transepithelial Photorefractive Keratectomy (Trans-PRK) With C as an Early Treatment for LASIK Flap Buttonhole Formation.

Abdulaal MR, Wehbe HA, Awwad ST. Journal of Refractive Surgery, January 2015.

5. Pain, wound healing and refractive comparison of mechanical and transepithelial debridement in photorefractive keratectomy (Trans-PRK) for myopia: Results of 1 year follow-up.

Celik U, Bozkurt E, Celik B, Demirok A, Yilmaz OF. Contact Lens Anterior Eye. July 28, 2014.

6. Introducing a new techinique for transepithelial surface ablation (TransPRK).

Sajjad Mughal, Arif Sokwala, Vaishali Patel and Amir Hamid describe the latest method, a new addition to the armoury for surface ablations. Optician, November 2014.

7. Comparison of Clinical Results between Transepithelial Photorefractive Keratectomy and Brush Photorefractive Keratectomy.

Hyunseung Kang, MD, Chul Myong Choe, MD, Tae Hoon Choi, MD, PhD, Se Kyung Kim, MD. ournal of Korean Ophthalmological Society, September 2014.

8. A Clinical and Confocal Microscopic Comparison of Transepithelial PRK (Trans-PRK) and LASEK for Myopia.

Safak Korkmaz,Kamil Bilgihan, Sabahattin Sul, Ahmet Hondur. Journal of Ophthalmology. July 2014.

9. Transepithelial photorefractive keratectomy (Trans-PRK) versus conventional alcohol-assisted photorefractive keratectomy (PRK) for correction of mild and moderate myopia.

Waleed A. Ghobashy, Mohamed E. Shahin, Karem A. Kolkailah. Journal of Egyptian Ophthalmological Society, June 2014.

10. On-line pachymetry outcome of ablation in aberration free mode TransPRK.

Adib-Moghaddam S, Arba-Mosquera S, Salmanian B, Omidvari AH, Noorizadeh F. European Journal of Ophthalmology, June 2014.

11. Spectral OCT with speckle contrast reduction for evaluation of the healing process after PRK and transepithelial PRK (TransPRK).

Kaluzny B J, Szkulmowski M, Bokowska DM, Wojtkowski M, Gora M, Wojtkowski M. Biomedical Optical Express, April 2014.

12. Transepithelial Photorefractive Keratectomy (TransPRK) with Cross-linking for Keratoconus.

A. N. Mukherjee, V. Selimis and I. Aslanides. The Open Ophthalmology Journal, October 2013.

13. Theoretical analyses of the refractive implications of trans-epithelial PRK (TransPRK) ablations

Arba Mosquera S, Awwad ST, British Journal of Ophthalmology, July 2013.

14. Consecutive myopia correction with transepithelial (TransPRK) versus alcohol-assisted photorefractive keratectomy (PRK) in contralateral eyes.

M. H. A. Luger, MD; T. Ewering, Dipl-Ing (FH); S.Arba-Mosquera, MSc, PhD. Journal of Cataract & Refractive Surgery, August 2012.

15. Transepithelial photorefractive keratectomy (TransPRK) mode using SCHWIND ESIRIS excimer laser.

Dong-Mei Wang; Yi Du; Guang-Sheng Chen; Liu-Song Tang, and Jian-Feng He. International Journal of Ophthalmology, June 2012.

16. Comparison of single-step reverse transepithelial all-surface (TransPRK) laser ablation (ASLA) to alcohol-assisted photorefractive keratectomy (PRK).

M. Aslanides, S. Padroni, S. Arba Mosquera, A. Ioannides, A. Mukherjee. Clinical Ophthalmology, June 2012.

17. Transepithelial photorefractive keratectomy (TransPRK) : Clinical Results

Fadlallah A, Fahed D, Khalil K, Dunia I, Menassa J, El Rami H, Chlela E, Fahed S. Journal of Cataract & Refractive Surgery, October 2011.

18. Simultaneous aspheric wavefront-guided transepithelial photorefractive keratectomy (TransPRK) and phototherapeutic keratectomy (PRK) to correct aberrations and refractive errors after corneal surgery

M. Camellin, MD; S. Arba Mosquera, MSc. Journal of Cataract & Refractive Surgery, July 2010.

19. Laser corneal refractive surgery in the twenty-first century: a review of the impact of refractive surgery on high-order aberrations (and vice versa).

S. Arba Mosquera, M. C. Arbelaez, D. de Ortueta. Journal of Modern Optics, July 2010.



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