Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 2412
  • Home
  • Print this page
  • Email this page

   Table of Contents      
LETTER TO THE EDITOR
Year : 2020  |  Volume : 68  |  Issue : 8  |  Page : 1712-1713

A simple solution to prevent microscope eyepiece fogging and spectacle fogging in COVID-19 era


1 Cornea and Refractive Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Pondicherry, India
2 Pediatric and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Pondicherry, India
3 Wilmer Eye Institute, Baltimore, United States of America
4 Glaucoma Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Pondicherry, India

Date of Web Publication24-Jul-2020

Correspondence Address:
Dr. Kirandeep Kaur
Fellow Pediatric and Squint Services, Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Pondicherry
India
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijo.IJO_1500_20

Rights and Permissions

How to cite this article:
Gurnani B, Kaur K, Mishra K, Venkatesh R. A simple solution to prevent microscope eyepiece fogging and spectacle fogging in COVID-19 era. Indian J Ophthalmol 2020;68:1712-3

How to cite this URL:
Gurnani B, Kaur K, Mishra K, Venkatesh R. A simple solution to prevent microscope eyepiece fogging and spectacle fogging in COVID-19 era. Indian J Ophthalmol [serial online] 2020 [cited 2020 Aug 11];68:1712-3. Available from: http://www.ijo.in/text.asp?2020/68/8/1712/290390



Dear Editor:

Despite brisk and extensive developments in ocular surgery,[1] surgeons continue to face the problem of recurrent fogging of their spectacles and microscope eyepieces while performing surgery.[2] With surgeons now wearing masks and face shield to protect against COVID-19, fogging seems to be a major issue. This has emphasized the need for maintaining surfaces devoid of fogging. The lens fogging occurs due to an imbalance between the temperature of the eyepiece, airway cavity, and relative humidity of the environment resulting in condensation of small water droplets [Figure 1]a and [Figure 1]b.[3],[4] Some of other challenges faced by the surgeons are reduced stereoacuity, fogging of teaching binoculars (side-scope), application of a plastic tape over the surgical mask before surgery [Figure 1]c and also lowering the upper mask strap to encourage easy breathing [Figure 1]d.
Figure 1: (a) Image depicting fogging of microscope eyepiece lenses with the condensation of small water droplets (white arrowhead). (b) Image depicting fogging of spectacle lenses while performing routine ophthalmic surgery (black arrowhead). (c) Image depicting the application of the plastic tape over the surgical mask by the ophthalmic surgeon before starting the surgery to prevent fogging (black arrowhead). (d) Image depicting the surgeon lowering the surgical mask strap to encourage breaths to escape downward (black arrowhead)

Click here to view


For our rescue, the medical grade anti-fog solutions [Figure 2]a have come as a boon. The anti-fog solution can be easily procured as a spray or pre-moistened towelette from the market at an inexpensive cost. They work by reducing the surface tension, allows formation of a uniform film of water and improves clarity.[5] This also ensures no scratches on the optical devices. The solution is applied with a sterilized dry cotton swab or sprayed directly onto the eyepiece [Figure 2]b and then, the eyepiece is cleaned with a sponge provided with the solution and allowed to dry [Figure 2]b. The big advantage is that the solution holds good for approximately 6 hours.
Figure 2: (a) Image depicting medical-grade anti-fog solution with an anti-scratch sponge for cleaning the microscope eyepieces. (b) Image depicting microscope eyepiece being cleaned with an anti-scratch sponge after anti-fog solution application (black arrowhead)

Click here to view


Hence as a result, surgeons have noted a clear, unobstructed view throughout their cases. The spectacled surgeons have found it very beneficial during the surgical procedures as there is no need for regular plastic tape application. As our medical team members are wearing masks throughout the examination, this can also be a solution for fogging in face shield, slit lamp eyepieces, fundus lenses, refraction lenses, and glasses.

One of its limitations is that the solution can't be sterilized. In future, if we find a way to sterilize it, can also be tried for Vitreoretinal surgeries using a Binocular Indirect Ophthalmo Microscope (BIOM, Oculus, Wetziar, Germany). This simple innovative and reproducible technique may help maximize surgical output, minimize complications during ophthalmic surgery and will be a boon for health care workers during this growing coronavirus pandemic.

Acknowledgements

Aravind Eye Hospital and Post Graduate Institute of Ophthalmology, Pondicherry.

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.



 
  References Top

1.
Davis G. The evolution of cataract surgery. Mo Med 2016;113:58-62.  Back to cited text no. 1
    
2.
Nezhat C, Morozov V. A simple solution to lens fogging during robotic and laparoscopic surgery. JSLS 2008;12:431.  Back to cited text no. 2
    
3.
Schurr MO, Kunert W, Arezzo A, Buess G. The role and future of endoscopic imaging systems. Endoscopy 1999;31:557-62.  Back to cited text no. 3
    
4.
Lawrentschuk N, Fleshner NE, Bolton DM. Laparoscopic lens fogging: A review of etiology and methods to maintain a clear visual field. J Endourol 2010;24:905-13.  Back to cited text no. 4
    
5.
Song T, Lee DH. A randomized comparison of laparoscopic LEns defogging using anti-fog solution, waRm saline, and chlorhexidine solution (CLEAR). Surg Endosc 2020;34:940-5.  Back to cited text no. 5
    


    Figures

  [Figure 1], [Figure 2]



 

Top
 
 
  Search
 
    Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
    Access Statistics
    Email Alert *
    Add to My List *
* Registration required (free)  

 
  In this article
References
Article Figures

 Article Access Statistics
    Viewed386    
    Printed0    
    Emailed0    
    PDF Downloaded136    
    Comments [Add]    

Recommend this journal