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LETTER TO THE EDITOR
Year : 2014  |  Volume : 62  |  Issue : 9  |  Page : 971-972

Nasolacrimal duct recanalization with endodiathermy bipolar probe: Response from authors


1 Department of Ophthalmology, King Georges' Medical University, Lucknow, Uttar Pradesh, India
2 Sukriti Eye Clinic, Kapoothala Bagh, Lucknow, Uttar Pradesh, India

Date of Web Publication4-Nov-2014

Correspondence Address:
Siddharth Agrawal
Department of Ophthalmology, King Georges' Medical University, Lucknow, Uttar Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0301-4738.143960

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How to cite this article:
Agrawal S, Gupta SK, Singh V, Agrawal S. Nasolacrimal duct recanalization with endodiathermy bipolar probe: Response from authors . Indian J Ophthalmol 2014;62:971-2

How to cite this URL:
Agrawal S, Gupta SK, Singh V, Agrawal S. Nasolacrimal duct recanalization with endodiathermy bipolar probe: Response from authors . Indian J Ophthalmol [serial online] 2014 [cited 2019 Jun 20];62:971-2. Available from: http://www.ijo.in/text.asp?2014/62/9/971/143960

Dear Sir,

We appreciate the interest shown in our work. Our response to the queries raised follows.

  1. For probing, after entering the puncta, the probe is initially directed medially until a hard stop is encountered. The probe is then slightly withdrawn and rotated upward 90°, in the same plane, and then angled to point 15° posteriorly. [1] Once the probe enters the nasolacrimal duct, its direction automatically becomes slightly lateral (as is the direction of this pathway). Anyone with some experience navigates the pathway with ease. However, we agree that false passages and trauma may occur
  2. We do not undermine the utility of endoscopy in children where pathways are narrow and child being under general anesthesia does not respond to pain. We have demonstrated this procedure only in adults above 18 years. Creation of the false passage in adults is usually painful and with the instrument that we are using the possibility of it being created is reduced though not eliminated. Once the probe is in the inferior meatus, it is visualized with the optic fiber directly. Probably in patients that could not be intubated and those that failed, false passage creation was one of the contributory factors
  3. Regarding the comment on success rate, please note that a probing as a treatment option in adults with blocked nasolacrimal ducts is not new and has been demonstrated to cause a significant symptomatic relief. [2] We have intubated our patients after recanalization, which should logically enhance the success. Moreover, we have specified that our criteria for success were "either a satisfied patient or a patent pathway on syringing". [3] The process does have a learning curve, but its simplicity makes it worthwhile
  4. The patient recruitment was carried out from January 2009 to December 2010, and the study was completed in December 2012.


 
  References Top

1.
Tanenbaum M, McCord CD Jr. Lacrimal drainage system. Duane's Ophthalmology on CD Rom. 2006 th ed. Philadelphia, PA: Lipincott Williams and Wilkins; 2006.  Back to cited text no. 1
    
2.
Guinot-Saera A, Koay P. Efficacy of probing as treatment of epiphora in adults with blocked nasolacrimal ducts. Br J Ophthalmol 1998;82:389-91.  Back to cited text no. 2
    
3.
Agrawal S, Gupta SK, Singh V, Agrawal S. A novel technique to recanalize the nasolacrimal duct with endodiathermy bipolar probe. Indian J Ophthalmol 2013;61:718-21.  Back to cited text no. 3
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