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Results of modified big bubble technique of deep anterior lamellar keratoplasty (DALK) for pellucid marginal corneal degeneration (PMCD)

Poster Details

First Author: R.Fogla INDIA

Co Author(s):    K. Ratnayake              

Abstract Details


To evaluate clinical outcome of modified Big Bubble DALK in management of PMCD with contact lens intolerance.


Cornea Clinic, Apollo Hospitals, Hyderabad, India


Prospective, non-randomized, interventional case series. In modified DALK surgery, Descemet Membrane separation was limited to central 7mm cornea. Donor cornea size was 9 -11 mm.


6 eyes of 4 patients, (mean age 47.7 years) underwent surgery. Mean follow up 17.3 months. UCVA & BSCVA improved from 20/320 & 20/60 preoperatively to 20/60 & 20/25 postoperatively. Average keratometry & astigmatism values were 42.8 + 2.7 & 3.4 + 1.67 diopters postoperatively. ECD at last follow up was noted to be 2578 +/- 127 cells/mm2


Modified Big Bubble DALK appears to be safe & effective to manage PMCD with contact lens intolerance

Financial Disclosure:


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