VISUAL OUTCOMES AFTER SUCCESSFUL VERSUS FAILED BIG-BUBBLE DEEP ANTERIOR LAMELLAR KERATOPLASTY IN KERATOCONUS

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DARYABARI S.H.; FEIZI S.; JAVADI M.A.

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Journal: BINA Year:2016 | Volume:21 | Issue:2 (83) Page(s): 124-129

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Title

VISUAL OUTCOMES AFTER SUCCESSFUL VERSUS FAILED BIG-BUBBLE DEEP ANTERIOR LAMELLAR KERATOPLASTY IN KERATOCONUS

Author(s)

DARYABARI S.H. | FEIZI S. | JAVADI M.A. | Issue Writer Certificate

Keywords

BIG-BUBBLE TECHNIQUEQ3

DEEP ANTERIOR LAMELLAR KERATOPLASTYQ3

KERATOCONUSQ3

SUCCESS RATEQ3

VISUAL ACUITYQ3

Abstract

Purpose: To compare visual outcomes after DEEP ANTERIOR LAMELLAR KERATOPLASTY (DALK) between eyes with and without successful big-bubble formation.Methods: In this retrospective comparative study, a total of 290 consecutive eyes from 257 KERATOCONUS-affected patients underwent DALK with the BIG-BUBBLE TECHNIQUE were enrolled. In cases where the big bubble could not be accomplished, manual stromal dissection down to DM was progressively performed using a crescent knife. The rate of successful big-bubble formation was determined. VISUAL ACUITY and refractive outcomes were compared between the bare Descemet membrane (DM) group (group 1) and manual dissection group (group 2).Results: The surgery was completed as DALK in 289 of 290 eyes and a bare DM was successfully achieved in 229 (79.2%) eyes. The study groups were comparable in terms of age (27.8±7.9 years in group 1 versus 27.5±8.5 years in group 2, P=0.79), preoperative best-spectacle corrected VISUAL ACUITY (BSCVA) (1.28±0.49 versus 1.31±0.51 logMAR, respectively, P=0.15), and postoperative follow-up (38.4±20.4 versus 37.4±19.9 months, respectively, P=0.73). Postoperative BSCVA was significantly better in group 1 than in group 2 throughout the follow-up period (P<0.05). At final follow-up examination, a BCVA 0.30 logMAR was achieved in 82.1% of group 1 and 54.5% of group 2 (P<0.001). Groups 1 and 2 were comparable in terms of postoperative spherical equivalent refractive error (-4.24±3.35 versus -4.49±3.25 D, respectively, P=0.61) and keratometric astigmatism (3.62±1.92 versus 3.38±1.71 D, respectively, P=0.39).Conclusion: Retention of posterior corneal stroma resulted in a lower VISUAL ACUITY as compared to the bare DM group.

Cites

KERATOCONUS, A TRUE CORNEAL DISEASE (EDITORIAL)

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APA: Copy

DARYABARI, S.H., FEIZI, S., & JAVADI, M.A.. (2016). VISUAL OUTCOMES AFTER SUCCESSFUL VERSUS FAILED BIG-BUBBLE DEEP ANTERIOR LAMELLAR KERATOPLASTY IN KERATOCONUS. BINA, 21(2 (83)), 124-129. SID. https://sid.ir/paper/43011/en

Vancouver: Copy

DARYABARI S.H., FEIZI S., JAVADI M.A.. VISUAL OUTCOMES AFTER SUCCESSFUL VERSUS FAILED BIG-BUBBLE DEEP ANTERIOR LAMELLAR KERATOPLASTY IN KERATOCONUS. BINA[Internet]. 2016;21(2 (83)):124-129. Available from: https://sid.ir/paper/43011/en

IEEE: Copy

S.H. DARYABARI, S. FEIZI, and M.A. JAVADI, “VISUAL OUTCOMES AFTER SUCCESSFUL VERSUS FAILED BIG-BUBBLE DEEP ANTERIOR LAMELLAR KERATOPLASTY IN KERATOCONUS,” BINA, vol. 21, no. 2 (83), pp. 124–129, 2016, [Online]. Available: https://sid.ir/paper/43011/en

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