July 2018
Volume 59, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2018
Effects of intraocular pressure on Peripapillary and Macular Vessel Density after cataract surgery: An Optical Coherence Tomography Angiography Study
Author Affiliations & Notes
  • Guiqiu Zhao
    Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China
  • Lina Zhang
    Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China
  • Jing Lin
    Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China
  • Cui Li
    Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China
  • Xiaoxiao Li
    Ophthalmology, The Affiliated Hospital of Qingdao University, Qingdao, China
  • Footnotes
    Commercial Relationships   Guiqiu Zhao, None; Lina Zhang, None; Jing Lin, None; Cui Li, None; Xiaoxiao Li, None
  • Footnotes
    Support  NSFC81470609
Investigative Ophthalmology & Visual Science July 2018, Vol.59, 2219. doi:https://doi.org/
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    • Get Citation

      Guiqiu Zhao, Lina Zhang, Jing Lin, Cui Li, Xiaoxiao Li; Effects of intraocular pressure on Peripapillary and Macular Vessel Density after cataract surgery: An Optical Coherence Tomography Angiography Study. Invest. Ophthalmol. Vis. Sci. 2018;59(9):2219. doi: https://doi.org/.

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

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Abstract

Purpose : To measure the influence of cataract surgically induced intraocular pressure fluctuating on peripapillary and macular vessel density in patients using optical coherence tomography angiography.

Methods : Fifty-two eyes of 52 patients with cataract for cataract surgery were enrolled prospectively. IOP was measured by a non-contacttonometer and Peripapillary and Macular Vessel Density was measured by OCTA at preoperative and postoperative minutes 0 and 60 and hours 8 and 24.

Results : Compared with preoperative, intraocular pressure in the normal range at 0 minutes, 60 minutes postoperative, the difference was not statistically significant. But the perfusion density of macular at postoperative 0 min and postoperative 60min were reduced than preoperative,and it recovered between1hour and 2hour . The vascular density of macular at postoperative 0 min were reduced than preoperative,and it recovered at postoperative 60 min. At 8 and 24 hours postoperative, peripapillary and macular vessel density did not change than preoperative when the intraocular pressure lower than 40 mmHg. The peripapillary and macular vessel density were reduced than preoperative when the intraocular pressure higher than 40 mmHg.

Conclusions : Fundus vessel density reduced result from the intraoperative perfusion pressure, the perfusion density of macular was still not fully recovered after 60 minutes. It can lead to the reduction of the fundus vessel density when the intraocular pressure higher than 40 mmHg. We should pay close attention to intraoperative and postoperative intraocular pressure on the impact of peripapillary and macular vessel density, in avoid of fundus ischemic injury.

This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.

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