Published online Dec 26, 2020. doi: 10.12998/wjcc.v8.i24.6243
Peer-review started: August 4, 2020
First decision: August 21, 2020
Revised: September 22, 2020
Accepted: November 2, 2020
Article in press: November 2, 2020
Published online: December 26, 2020
Processing time: 137 Days and 3.8 Hours
Coats disease is an idiopathic exudative outer retinopathy caused by abnormal retinal vascular development.
To evaluate the long-term outcomes of intravitreal conbercept injection with laser photocoagulation as a treatment for Coats disease in adults.
This retrospective case series study included patients diagnosed with Coats disease and treated with intravitreal conbercept injection and 532-nm laser photocoagulation at the Ophthalmology Department of Shenzhen People’s Hospital between January 2016 and January 2017. Best-corrected visual acuity (BCVA) measurements, noncontact tonometry, ophthalmoscopy, fundus photography, fundus fluorescein angiography and optical coherence tomography were performed before treatment and at 1 wk, 1 mo, 3 mo, 6 mo, 9 mo, 12 mo, 24 mo and 36 mo after therapy. Best-corrected visual acuity was measured using the early treatment of diabetic retinopathy study chart.
The study included eight eyes of 8 patients (7 men) aged 36.10 ± 6.65 years. The average BCVA of the affected eye before treatment was 51.17 ± 15.15 letters (range, 28–70 letters), and the average central macular thickness was 303.30 ± 107.87 µm (range, 221–673 µm). Four eyes were injected once, three were injected twice, and one was injected three times. Average follow-up duration was 37.33 ± 2.26 mo. Average BCVA of the affected eye was 51.17 ± 15.15 letters before treatment and was increased by 13.50 ± 3.20, 16.25 ± 7.73, 18.25 ± 8.96, 18.03 ± 5.27, 18.63 ± 3.35, 19.75 ± 6.96, 18.05 ± 5.36 and 17.88 ± 3.45 letters at 1 wk, 1 mo, 3 mo, 6 mo, 9 mo, 12 mo, 24 mo and 36 mo after treatment, respectively (P < 0.01). The patients showed varying degrees of subretinal fluid resorption after treatment. None of the patients had serious complications such as increased intraocular pressure, development/progression of cataracts, endophthalmitis or retinal detachment.
Intravitreal injection of conbercept combined with 532-nm laser photocoagulation may be a feasible treatment for Coats disease in adult patients.
Core Tip: Coats disease is an idiopathic exudative outer retinopathy caused by abnormal retinal vascular development. Intravitreal injection of conbercept combined with 532-nm laser photocoagulation may be a feasible treatment for Coats disease in adult patients.