Pachymetry-guided intrastromal air injection ("pachy-bubble") for deep anterior lamellar keratoplasty: results of the first 110 cases

Cornea
Ramon C GhanemVinícius C Ghanem

Abstract

To report intraoperative and 1-year postoperative results of the pachy-bubble technique for deep anterior lamellar keratoplasty (DALK). This prospective interventional case series included 110 eyes of 107 patients with anterior corneal pathology who underwent DALK, including 78 with keratoconus. Outcome measures included the rate of bubble formation, rate of completing DALK, bubble types, complications, and visual and keratometric parameters. Intrastromal air injection was attempted in 109 eyes, and the air bubble was achieved in 93 eyes (85.3%). Intrastromal 2% methylcellulose injection was attempted in 9 eyes, after unsuccessful air bubble formation, and the viscobubble was achieved in 7 eyes (77.8%). Manual layer-by-layer dissection was performed in 8 eyes. Bubble formation was reached in 100 eyes (90.9%). Overall, 105 eyes (95.5%) achieved DALK. Air bubble occurred as type 1 (white margin) in 96.6% of the cases and as type 2 (clear margin) in 3.4%. There was a statistically significant improvement in all visual and keratometric parameters analyzed. Macroperforations converted to penetrating keratoplasty occurred in 5 eyes (4.5%) and microperforations in 12 (10.9%). There were significantly higher rates of perforation when a...Continue Reading

References

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Citations

Feb 3, 2016·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·C CursiefenB Bachmann
Dec 2, 2015·Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft·C CursiefenB Bachmann
Nov 8, 2016·Spektrum Der Augenheilkunde : Zeitschrift Der Österreichischen Ophthalmologischen Gesellschaft, ÖOG·Bernhard StegerStephen B Kaye
Dec 25, 2017·The British Journal of Ophthalmology·Vincenzo ScorciaMassimo Busin
Jun 10, 2019·The British Journal of Ophthalmology·Vincenzo ScorciaMassimo Busin
Dec 13, 2018·Journal of Ophthalmology·Vincent M BorderieOtman Sandali

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