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Year : 2019  |  Volume : 67  |  Issue : 11  |  Page : 1830-1833

Deep anterior lamellar keratoplasty outcomes in macular and granular corneal dystrophy – A comparative cross-sectional study

Department of Cornea, Cataract and Refractive Services, The Eye Foundation Hospital, Coimbatore, Tamil Nadu, India

Correspondence Address:
Dr. Shreesha Kumar Kodavoor
The Eye Foundation, 582 A, DB Road, R.S. Puram, Coimbatore - 641 002, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijo.IJO_1623_18

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Purpose: To compare the functional and anatomical outcomes (in terms of graft uptake and rejection/failure) of deep anterior lamellar keratoplasty (DALK) in stromal corneal dystrophy (macular and granular). Methods: Sixteen eyes with macular corneal dystrophy (MCD; group A) and 10 eyes with granular corneal dystrophy (GCD; group B) underwent successful DALK by big bubble technique or layer-by-layer dissection. Results: Both groups showed significant improvement in their best-corrected visual acuity postoperatively (postoperative P value in MCD and GCD was 0.00001 and 0.0008, respectively) with no statistically significant differences between the two groups (P = 0.77) at 1 year. Postoperative endothelial count did not drop significantly in group A (MCD, P= 0.1553). Only in seven eyes preoperative endothelial count could be obtained (due to dense stromal corneal opacity), but there was a significant endothelial count difference between preoperative and postoperative count in group B (GCD, P= 0.0405) at the end of 1 year postoperatively which could be because of age and stage of disease (advanced granular dystrophy) and also because of small sample size of GCD compared with MCD. Intergroup comparison between the two groups showed no statistically significant difference (P = 0.6353) with good postoperative outcome in both groups. Conclusion: DALK can be successfully done in both groups and results are comparable. However, long-term outcomes on a large scale need to be further evaluated.

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