Austin McCormick

                                                  Consultant Ophthalmic and Oculoplastic Surgeon MBChB, FRCOphth

Mr. McCormickmr.-mccormick.html
Treatment photographsTreatment_photographs.html
Clinical Audit of Results
Patient information leafletsPatient-information-leaflets.html

Dacryocystorhinostomy (Tear Duct Bypass) Surgery for Watery Eyes

Period of audit:                            11/08/08 - 21/09/10

Follow up period:                        50% had greater than 6/12 follow up                         

Total number of operations:      68    

Number of External DCR:         41   

Number of Endonasal DCR:      27 

Overall success rate:                   92% 

External DCR success rate:       89% total success; 96% total + partial success

Endonasal DCR success rate:    96% total success (1 failure)

Complication rate:                      0%  major complications

                                                      14% minor complications (nose bleed, sinusitis) endo

                                                      18% minor complications (nose bleed, scar) external

Gold Standard: Tsirbas A, Davis G, Wormald PJ. Mechanical Endonasal Dacryocystorhinostomy Versus External Dacryocystorhinostomy. Ophthalmic Plastic and Reconstructive Surgery. 20; (1):50-56. Endonasal success rate - 93.5% (31 cases). External success rate - 95.8% (24 cases).

Comments: External DCR results include all cases: Repeat surgery from other centres; nasolacrimal duct obstruction; canalicular stenosis; functional nasolacrimal duct obstruction. The 3 external DCR cases which failed were either canalicular stenosis or functional obstruction - conditions known to have higher failure rates. Excluding these gives a 100% success rate for nasolacrimal duct obstruction cases.

14% (4 cases) of endonasal cases required a nasal septoplasty.

Data was available for analysis in 21/27 endonasal and 28/41 external cases.

Conclusion:  These results compare favourably with published gold standard results in peer reviewed scientific journals.                   

Cataract Surgery

Period of audit:   

Follow up period:                                                   

Total number of operations:           

Number of External DCR:               

Number of Endonasal DCR:           

Overall success rate:                       

External DCR success rate:           

Endonasal DCR success rate:        

Complication rate: 

Gold Standard:



Tel: 01517098442                             Fax: 01517097509                                Email:                               Address:  86 Rodney Street  L1 9AR UK

Clinical Audit of Results