Abstract
Purpose :
The third generation of microperimeter-3 is a new type of non-invasive visual function test equipment, which can detect visual field in patients with low vision and poor fixation. The most important feature is the precise correspondence of retinal morphology and function.
OCT angiography (OCTA) is a non-invasive and fast blood flow detection technology. OCTA can detect and quantify blood flow signals without intravenous contrast agents, and can observe and judge the changes of blood flow in the retina and choroid.
Rhegmatogenous retinal detachment is also called primary retinal detachment. Outer retinal ischemia can occur early in the course of the disease, which has a certain effect on the photoreceptor layer and then affects visual function.
The third generation microperimeter-3 combined with OCTA was used to evaluate the visual function and fundus blood flow status before and after surgery for patients with rhegmatogenous retinal detachment, to find the relationship between function and structure, and to explore the value of MP-3 and OCTA in prognosis of rhegmatogenous retinal detachment.
Methods :
For patients with rhegmatogenous retinal detachment, we collected the data of the best corrected visual acuity (BCVA), SS-OCT, OCTA and the third generation of microperimeter before the surgery and 1 week, 1month, 3months and 6 months after the surgery. We compared the relationship between microperimeter and BCVA, visual function and morphology.
Results :
The visual function of the patients improved significantly in 1 week, and improved gradually after that, while the magnitude gradually decreased. In the microperimeter results, the average visual sensitivity within the range of 20 ° × 20 ° in the macular region was positively correlated with BCVA. The poor visual function on the microperimeter map was corresponded to the morphological map. The improvement of blood flow in posterior pole was not significant.
Conclusions :
Both the third generation microperimeter and OCTA have certain diagnosis and prognosis value in the evaluation of visual function before and after surgery for patients with rhegmatogenous retinal detachment. The patient's prognosis can be comprehensively evaluated before and after operation by combining the fundus image, OCT, BCVA, and microperimeter results.
This is a 2020 ARVO Annual Meeting abstract.