September 2016
Volume 57, Issue 12
Open Access
ARVO Annual Meeting Abstract  |   September 2016
Novel clinical method for preventing condensation in noncontact wide-angle viewing systems
Author Affiliations & Notes
  • Dongchul Choi
    Ophthalmology, Hallym Unversity Sacred Heart Hospital, Anyang, Kunggido, Korea (the Republic of)
  • Soonil Kwon
    Ophthalmology, Hallym Unversity Sacred Heart Hospital, Anyang, Kunggido, Korea (the Republic of)
  • Inwon Park
    Ophthalmology, Hallym Unversity Sacred Heart Hospital, Anyang, Kunggido, Korea (the Republic of)
  • Jung Pil Lee
    Ophthalmology, Incheon Medical center, Incheon, Korea (the Republic of)
  • Joo Yeon Lee
    Ophthalmology, Hallym Unversity Sacred Heart Hospital, Anyang, Kunggido, Korea (the Republic of)
  • Footnotes
    Commercial Relationships   Dongchul Choi, None; Soonil Kwon, None; Inwon Park, None; Jung Pil Lee, None; Joo Yeon Lee, None
  • Footnotes
    Support  none
Investigative Ophthalmology & Visual Science September 2016, Vol.57, 5817. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      Dongchul Choi, Soonil Kwon, Inwon Park, Jung Pil Lee, Joo Yeon Lee; Novel clinical method for preventing condensation in noncontact wide-angle viewing systems. Invest. Ophthalmol. Vis. Sci. 2016;57(12):5817.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Purpose : To compare the effects of a soaking objective lens into warm saline and a corneal coating with ophthalmic viscoelastic devices (OVDs) for preventing condensation during vitrectomy with noncontact wide-angle viewing systems (WAVs).

Methods : Four experiments were performed with a noncontact WAVs. First, we explored the condensation time according to the distance between cornea and objective lens. Second, after coating the dispersive ophthalmic viscoelastic devices (OVDs) on cornea surface, we rechecked the condensation time in the same manner. Third, we repeated experiment after soaking the objective lens in warm saline. Before 3rd experiment, to determine the optimal soaking time, we checked the temperature changes after soaking lens for 1, 5, 10, 15,and 20 minutes.

Results : The difference in temperature of the lenses soaked for 1 and 5 minutes was not statistically significant. On the other hand, the lenses soaked for 10, 15 and 20 minutes showed statistically significant difference compared with the lenses soaked for 1 minute in the saline. There was no difference in the condensation time between control and OVDs coating group at 1, 3 and 5mm distance from the corneal surface (P = .068, P = .051 and P= .063 respectively). However, the condensation time of the 1 minute warm saline soaking group was higher than that of the control at 1, 3 and 5mm distance from the corneal surface (P = .043, P = .041 and P= .043 respectively).

Conclusions : A corneal coating with OVDs was not much effective in delaying condensation time while warm saline soaked lens proved to be simple and effective to get clear surgical view for a long enough time.

This is an abstract that was submitted for the 2016 ARVO Annual Meeting, held in Seattle, Wash., May 1-5, 2016.

 

Experimet Method : distance between cornea and objective lens

Experimet Method : distance between cornea and objective lens

 

Condensated Lens

Condensated Lens

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×