Related Experiment Video
Updated: Jul 4, 2026

Correction of Presbyopia by Monocular Bi-Aspheric Ablation Profile
Published on: September 20, 2024
[Treatment for combined hypermetropia and presbyopia with a gaussian broad beam Excimer Laser]
L Gobin1, R Trau, M J Tassignon
1Département d'Ophtalmologie, Hôpital Universitaire d'Anvers, Université d'Anvers, Belgique. gobin.laure@gmail.com
Aim:
To analyze the performances of the Inpro-Gauss Excimer laser in the treatment of hyperopia and combined hypermetropia-presbyopia.
Methods:
The hypermetropic treatment consisted in making 12 confluent ablation spots of 3.3+/-0.1 mm at 4.5 mm from the corneal apex. The surgical parameters were simulated by a computer model of the corneal profile. The combined hypermetropic-presbyopic treatment was achieved by adding 4 spots of +2 D in the infero-nasal quadrant. Our series included forty eyes of which eleven were treated for hyperopia only and twenty nine were treated both for hyperopia and presbyopia.
Results:
The uncorrected postoperative visual acuity was equivalent or better than the preoperative corrected visual acuity in 82% of cases. The averaged postoperative spherical equivalent was -0.2+/-0.5 D. Near uncorrected visual acuity was one line better (in decimal notation) for the group treated for both hyperopia and presbyopia than in the single hyperopia group.
Conclusion:
Surface laser treatment of hyperopia and presbyopia with a gaussian broad beam laser is safe, accurate and reproducible.
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