Laser photocoagulation or endolaser combined with vitrectomy for congenital optic disc pit maculopathy: "dam sign" of optical coherence tomography is a sign to indicate the anatomic success
10.3760/cma.j.issn.1005-1015.2019.06.012
- VernacularTitle: 激光光凝及其联合玻璃体切割手术治疗先天性视盘小凹合并浆液性黄斑脱离：光相干断层扫描可见"堤坝样"改变是关键
- Author:
Li HUANG
1
;
Cancan LYU
;
Jun LI
;
Lin LYU
Author Information
1. State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou 510060, China
- Publication Type:Journal Article
- Keywords:
Optic disk/abnormalities;
Laser coagulation;
Vitrectomy;
Tomography, optical coherence;
Dam sign change
- From:
Chinese Journal of Ocular Fundus Diseases
2019;35(6):580-583
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the successful signs of laser photocoagulation or endolaser combined vitrectomy for congenital optic disc pit (ODP) with serous macular detachment.
Methods:A retrospective case analysis. Twelve eyes of 12 patients with congenital ODP complicated with serous macular detachment diagnosed in Zhongshan Ophthalmic Center from 2003 to 2018 were included in this study. There were 2 males (2 eyes) and 8 females (8 eyes). The average age was 30.17 years old. Retinal laser photocoagulation and/or vitrectomy were performed in all the eyes. The optic disc and macular area were scanned using the tracking mode of the Germany Heidelberg Spectralis OCT instrument. The "dam-sign" change was a retinal choroidal scar on the channel between the ODP and the macula on the OCT image after treatment. The eyes were divided into a "dam-sign" change group (group A, 10 eyes) and no "dam-sign" change group (group B, 2 eyes). The BCVA of eyes in group A was 0.03-0.6. In group A, 1 eye was treated with laser photocoagulation alone, 9 eyes were treated with vitrectomy combined with laser photocoagulation. The BCVA of eyes in group B was 0.1. All the eyes in group B underwent vitrectomy combined with laser photocoagulation. The follow-up was ranged from 6 to 174 months. The same equipment and method before treatment were used for 1, 3, 6, 12, 18, and 24 months after treatment. The BCVA, absorption of subretinal fluid (SRF) and the formation of "dam-sign" change were observed.
Results:At the last follow-up, the BCVA of eyes in group A was 0.4-1.0 (0.4 in 1 eye, 0.5 in 3 eyes, 0.6 in 2 eyes, 0.8 in 3 eyes, 1.0 in 1 eye). In 9 eyes treated with vitrectomy combined with laser photocoagulation, SRF was completely absorbed. In 1 eye treated with laser photocoagulation alone, SRF remained in small amount. The BCVA of the two eyes in group B was 0.03 and 0.3, respectively; and SRF was not absorbed in both of them.
Conclusions:The "dam-sign" change near optic disc after laser photocoagulation can promote SRF absorption and improve BCVA. It can be used as a success indicator after treatment.
