![](/images/graphics-bg.png)
Changes in Retinal Vasculature and Thickness after Small Incision Lenticule Extraction with Optical Coherence Tomography Angiography
Joint Authors
Gong, Lan
Chen, Minjie
Dai, Jinhui
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-05-20
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Purpose.
To evaluate the changes in retinal vessel density and thickness after small incision lenticule extraction (SMILE) with optical coherence tomography angiography (OCTA) in myopic patients.
Methods.
In this prospective study, SMILE surgeries were done in 46 eyes of 24 patients with spherical equivalent (SE) more than −6.0 diopters (D).
Retinal vessel density and thickness at the macula and optic nerve were recorded with OCTA before and 1 day, 2 weeks, and 1 month after surgery.
Intraocular pressure (IOP), uncorrected distance visual acuity (UDVA), and refraction were taken at the same time.
Results.
The superficial retinal vessel density and deep foveal retinal vessel density 1 day after surgery were less than those before surgery; however, the changes at any timepoints were not statistically significant (p=0.2736 and p=0.1590, respectively).
Both the superficial vessel density and deep vessel density at the parafoveal and perifoveal regions decreased significantly 1 day postoperatively (all p<0.05) and then returned to the preoperative level at 2 weeks and stabilized thereafter.
There were no significant changes in any of the 4 vessel densities in the area of peripapillary before and 1 day, 2 weeks, and 1 month after surgery (p=0.3345).
No statistically significant differences between preoperative and postoperative retinal thickness were detected for the area of macula and optic nerve (all p>0.5).
Conclusions.
The vessel density at the parafoveal and perifoveal regions decreased at 1 day after SMILE with no effect on the visual acuity and relieved within 2 weeks.
Decreased ocular blood flow in response to the spike in IOP may account for such changes.
American Psychological Association (APA)
Chen, Minjie& Dai, Jinhui& Gong, Lan. 2019. Changes in Retinal Vasculature and Thickness after Small Incision Lenticule Extraction with Optical Coherence Tomography Angiography. Journal of Ophthalmology،Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1185480
Modern Language Association (MLA)
Chen, Minjie…[et al.]. Changes in Retinal Vasculature and Thickness after Small Incision Lenticule Extraction with Optical Coherence Tomography Angiography. Journal of Ophthalmology No. 2019 (2019), pp.1-7.
https://search.emarefa.net/detail/BIM-1185480
American Medical Association (AMA)
Chen, Minjie& Dai, Jinhui& Gong, Lan. Changes in Retinal Vasculature and Thickness after Small Incision Lenticule Extraction with Optical Coherence Tomography Angiography. Journal of Ophthalmology. 2019. Vol. 2019, no. 2019, pp.1-7.
https://search.emarefa.net/detail/BIM-1185480
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1185480