May 2003
Volume 44, Issue 13
Free
ARVO Annual Meeting Abstract  |   May 2003
Evaluation of Suctioning Port in Microkeratomes: Comparison of Single and Dual Ports
Author Affiliations & Notes
  • S. Suzuki
    Ophthalmology, Tokyo Dental College Suidobashi Hospital, Tokyo, Japan
  • H. Bissen-Miyajima
    Ophthalmology, Tokyo Dental College Suidobashi Hospital, Tokyo, Japan
  • Y. Ohashi
    Ophthalmology, Tokyo Dental College Suidobashi Hospital, Tokyo, Japan
  • K. Minami
    Santen Pharmaceutical Co., Osaka, Japan
  • Footnotes
    Commercial Relationships  S. Suzuki, None; H. Bissen-Miyajima, None; Y. Ohashi, None; K. Minami, None.
Investigative Ophthalmology & Visual Science May 2003, Vol.44, 2689. doi:
  • Views
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      S. Suzuki, H. Bissen-Miyajima, Y. Ohashi, K. Minami; Evaluation of Suctioning Port in Microkeratomes: Comparison of Single and Dual Ports . Invest. Ophthalmol. Vis. Sci. 2003;44(13):2689.

      Download citation file:


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

      ×
  • Supplements
Abstract

Abstract: : Purpose: To evaluate the effect of suctioning ports of the microkeratomes on the course of suction, the changes of intraocular pressure (IOP) were compared between single and dual ports. Methods: Suction rings with single and dual ports were made with transparent acrylic acid resin to observe the course of suctioning. Inter-ring design was the same with that of BD K-3000®. Using six porcine eyes, IOP was measured with intra-vein pressure sensor catheter (diameter: 1.2mm, 3.5F) by placing it in the vitreous cavity. The course of the suction was observed through acrylic suction ring and the changes of IOP were recorded simultaneously with a digital video camera. The rise time which was defined as the time to reach 90% of the maximum IOP was measured. For each eye, these measurements were conducted twice for both single and dual ports. Result: In the course of suctioning, the similar behavior was observed with single and dual ports. The initial IOP was 15.4±4.5 mmHg and the increase of the IOP was 99.1±6.1 mmHg with single port and 99.0±6.5 mmHg with dual ports. The rise time was 4.21±0.24 seconds with single port and 4.12±0.33 seconds with dual ports. The IOP changes and rise time were not significantly different between single and dual ports. Conclusion: The number of ports did not affect the course of suctioning and the changes of IOP in our system. Other factors such as the shape of the inter-ring and the vacuum systems should be further investigated.

Keywords: animal model • intraocular pressure • refractive surgery: LASIK 
×
×

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.

×