scholarly journals Clinical Outcomes After Femtosecond Laser-Assisted Arcuate Corneal Incisions versus Manual Incisions

2021 ◽  
Vol Volume 15 ◽  
pp. 2635-2641
Author(s):  
Clayton Blehm ◽  
Richard Potvin
Keyword(s):  
Femtosecond Laser ◽  
Clinical Outcomes ◽  
Corneal Incisions

Clinical outcomes of a novel IOL design for Femtosecond laser assisted cataract surgery

2018 ◽  
Vol 41 ◽  
pp. S51 ◽  
Author(s):  
Racquel Gil-Cazorla ◽  
Shehzad Naroo ◽  
Emma Berrow ◽  
James Wolffsohn ◽  
Sunil Shah
Keyword(s):  
Femtosecond Laser ◽  
Cataract Surgery ◽  
Clinical Outcomes

Long-term Clinical Outcomes of Femtosecond LASER-Assisted Descemet's Stripping Endothelial Keratoplasty

2011 ◽  
Vol 52 (6) ◽  
pp. 679 ◽  
Author(s):  
Byung Gil Moon ◽  
Jae Hyung Kim ◽  
Joo Eun Lee ◽  
Myoung Joon Kim ◽  
Jae Yong Kim ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Clinical Outcomes ◽  
Endothelial Keratoplasty ◽  
Descemet’S Stripping Endothelial Keratoplasty

Effect of the variability in implantation depth of intracorneal ring segments using the femtosecond laser technology in corneal ectasia

2019 ◽  
Vol 30 (4) ◽  
pp. 668-675
Author(s):  
Cristina Peris-Martínez ◽  
Cristina Dualde-Beltrán ◽  
Ester Fernández-López ◽  
Maria José Roig-Revert ◽  
Mikhail Hernández-Díaz ◽  
...  
Keyword(s):  
Visual Acuity ◽  
Femtosecond Laser ◽  
Clinical Outcomes ◽  
Relative Depth ◽  
Laser Technology ◽  
Corneal Ectasia ◽  
Implantation Depth ◽  
Prospective Longitudinal ◽  
The Impact

Purpose: To analyze the impact of the depth of implantation of intracorneal ring segments on morphological, biomechanical, and clinical outcomes in ectatic corneas. Methods: This prospective longitudinal study enrolled 40 eyes of 29 patients (age 20–51 years) with corneal ectasia that underwent intracorneal ring segments implantation (KeraRing, Mediphacos). Changes in visual acuity, refraction, corneal tomography, and corneal biomechanics (Ocular Response Analyzer, Reichert) were evaluated during a 6 month follow-up. Likewise, changes in ring segment implantation depth measured by optical coherence tomography (Visante OCT, Carl Zeiss Meditec) were also evaluated. Results: Mean relative depth of implantation was 71.6 ± 5.8%, 71.5 ± 6.5%, and 71.9 ± 6.3% at 1, 3, and 6 months after surgery, respectively (p = 0.827). The difference between the real relative depth of implantation and the theoretical attempted value of 70% was not statistically significant (p = 0.072). Differences in spherical equivalent during the follow-up changed significantly depending on the level of relative depth of implantation (p = 0.036), with an increase of 0.114 D per each 1% increase in relative depth of implantation. Likewise, a decrease of –0.194 D in the steepest keratometric reading was found per each decrease of 1% in relative depth of implantation (p = 0.026). Changes in corneal thickness (p = 0.092) and biomechanics (p = 0.080) were not related to relative depth of implantation. Conclusion: The effect on visual acuity and refraction of intracorneal ring segments when implanted in corneal ectasia is less clinically relevant when the implantation is done at a very deep plane. The variability of the depth of intracorneal ring segments implantation when using femtosecond laser technology is minimal and with no clinically significant effect on clinical outcomes.

scholarly journals Prediction of surgically induced astigmatism in manual and femtosecond laser-assisted clear corneal incisions

2018 ◽  
Vol 28 (4) ◽  
pp. 398-405 ◽  
Author(s):  
Joaquín Fernández ◽  
Manuel Rodríguez-Vallejo ◽  
Javier Martínez ◽  
Ana Tauste ◽  
David P Piñero
Keyword(s):  
Femtosecond Laser ◽  
Corneal Astigmatism ◽  
Toric Intraocular Lens ◽  
Surgically Induced Astigmatism ◽  
Orthogonal Components ◽  
Induced Astigmatism ◽  
The Mean ◽  
Surgically Induced ◽  
Corneal Incisions ◽  
Intraocular Lens Calculation

Purpose: To assess the surgically induced astigmatism with femtosecond laser-assisted and manual temporal clear corneal incisions and to evaluate the performance of a model for prediction of the surgically induced astigmatism based on the preoperative corneal astigmatism. Methods: Clinical data of 104 right eyes and 104 left eyes undergoing cataract surgery, 52 with manual incisions and 52 with femtosecond laser-assisted incisions in each eye group, were extracted and revised retrospectively. In all cases, manual incisions were 2.2 mm width and femtosecond incisions were 2.5 mm width, both at temporal location. A predictive model of the surgically induced astigmatism was obtained by means of simple linear regression analyses. Results: Mean surgically induced astigmatisms for right eyes were 0.14D@65° (manual) and 0.24D@92° (femtosecond) (p > 0.05) and for left eyes, 0.15D@101° (manual) and 0.19D@104° (femtosecond) (p > 0.05). The orthogonal components of the surgically induced astigmatism (XSIA, YSIA) were significantly correlated (p < 0.05) with the preoperative orthogonal components of corneal astigmatism (Xpreop, Ypreop) (r = −0.29 for X and r = −0.1 for Y). The preoperative astigmatism explained 8% of the variability of the XSIA and 3% of the variability of YSIA. The postoperative corneal astigmatism prediction was not improved by the surgically induced astigmatism obtained from the model in comparison with the simple vector subtraction of the mean surgically induced astigmatism. Conclusion: Temporal incisions induce similar astigmatism either for manual or for femtosecond procedures. This can be clinically negligible for being considered for toric intraocular lens calculation due to the great standard deviation in comparison with the mean. The usefulness of the prediction model should be confirmed in patients with high preoperative corneal astigmatism.

Arcuate Incisions in Corneal Surgery

2013 ◽  
Vol 06 (01) ◽  
pp. 26
Author(s):  
Christopher L Blanton ◽  
Keyword(s):  
Clinical Practice ◽  
Femtosecond Laser ◽  
Cataract Surgery ◽  
Current Status ◽  
Corneal Surgery ◽  
Future Developments ◽  
History Of ◽  
Correction Of Astigmatism ◽  
Indications For Use ◽  
Corneal Incisions

This article describes the current status of the femtosecond generated arcuate incision to correct corneal steepening. It covers the history of the surgical correction of astigmatism and describes the entrance of the femtosecond laser into modern corneal and cataract surgery. The process of photodisruption is explained as are the current indications for use of the femtosecond laser to make corneal incisions. A detailed narrative for programming the laser to perform arcuate incisions is included. Nomograms are referenced, and advantages over bladed incisions are described. A case is presented to show the use of these incisions in clinical practice. Finally, future developments are contemplated.

Primary femtosecond laser posterior capsulotomy: Without clinical outcomes, caution should be exercised

2017 ◽  
Vol 43 (9) ◽  
pp. 1237 ◽  
Author(s):  
Fiona S. Lau ◽  
Anna M. Waldie ◽  
Sascha K.R. Spencer ◽  
Ian C. Francis
Keyword(s):  
Femtosecond Laser ◽  
Clinical Outcomes ◽  
Posterior Capsulotomy

scholarly journals Comparison of the Long-term Clinical Outcomes of Penetrating Keratoplasty Using a Manual Trephine and Femtosecond-Laser Trephination

2020 ◽  
Vol 61 (12) ◽  
pp. 1424-1432
Author(s):  
Ha-Rim So ◽  
Seon-Joo Kim ◽  
Choun-Ki Joo ◽  
You-Sook Hwang ◽  
Yong-Soo Byun ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Clinical Outcomes ◽  
Penetrating Keratoplasty
Sign in / Sign up

Export Citation Format

Share Document