Femtosecond laser-assisted big bubble for deep anterior lamellar keratoplasty
Date
2021-01Author
Gogri, Pratik Y
Bore, Millicent C
Rips, Aaron G T
Reddy, Jagadesh C
Rostov, Audrey T
Vaddavalli, Pravin K
Type
ArticleLanguage
enMetadata
Show full item recordAbstract
Purpose: To assess the utility of a femtosecond laser-assisted stromal channel to assist the creation of a big bubble (BB) for deep anterior lamellar keratoplasty (DALK) surgery in cadaveric corneas.
Setting: L V Prasad Eye Institute, Hyderabad, India.
Design: Experimental study.
Methods: An attempt to create a BB was made on 10 donor pairs of human cadaveric corneoscleral tissues. The 20 corneas were split into 2 groups: Group A underwent femtosecond laser pretreatment and Group B had conventional manual deep lamellar technique. Laser pretreatment was performed using the VisuMax femtosecond laser system to create a stromal channel using the intracorneal ring segment treatment module for direct insertion of the 27-gauge air cannula for pneumodissection at a predetermined depth.
Results: Of the 20 corneas studied, type 1 BB was achieved in 9 of 10 corneas in Group A and in 7 of 10 corneas in Group B. One cornea from Group A had a combined type 1 and 2 BB, whereas no BB was achieved in 1 cornea.
Conclusions: Creation of an intrastromal channel using a femtosecond laser at a predetermined depth seemed to be a promising option to increase the chances of achieving a BB when compared with the conventional air injection technique of BB DALK.
Citation
Gogri PY, Bore MC, Rips AGT, Reddy JC, Rostov AT, Vaddavalli PK. Femtosecond laser-assisted big bubble for deep anterior lamellar keratoplasty. J Cataract Refract Surg. 2021 Jan 1;47(1):106-110. doi: 10.1097/j.jcrs.0000000000000400. PMID: 32932372.Publisher
University of Nairobi
Rights
Attribution-NonCommercial-NoDerivs 3.0 United StatesUsage Rights
http://creativecommons.org/licenses/by-nc-nd/3.0/us/Collections
- Faculty of Health Sciences (FHS) [10378]
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