Department of Ophthalmology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India.
Department of Neonatology, PSG Institute of Medical Sciences and Research, Coimbatore, Tamil Nadu, India.
Indian J Ophthalmol. 2019 Jun;67(6):834-839. doi: 10.4103/ijo.IJO_268_19.
The gold standard for evaluating Retinopathy of prematurity (ROP), a potentially blinding disease in preterm babies, is by indirect ophthalmoscopy which is quite subjective. Digital imaging with RetCam, an advanced wide field imaging system is more precise but it is not easily available or affordable. Smartphones are being explored as an alternate cost effective and accessible imaging tool. This is possible because of the good illumination and the built-in high resolution cameras available in modern smartphones. The aim of this study is to illustrate the utility of MII RetCam assisted smartphone based fundus imaging (MSFI) in the documentation and monitoring of ROP.
Single-centre, retrospective observational study of all the preterm babies subjected to MSFI as part of ROP screening from September 2017 to November 2018. iPhone 4S and + 20 Diopter lens attached to the MII RetCam device was used for fundus imaging at baseline and during follow up. The statistical analysis used for the same is the SPSS statistical software.
Good quality images of central and peripheral retina could be captured in 33 out of 42 babies (78.57%) with ROP. Serial imaging done in 24 babies with ROP helped in precise monitoring of the disease and planning management. Incidentally detected non-ROP findings were also documented. Unique design of the device enabled imaging by a single examiner. Image database created was useful for academic and counselling purposes. Smaller field images which can cause difficulty in distinguishing the zones is a limitation.
MSFI is a potential alternate imaging tool enabling objective documentation and monitoring of ROP in low resource settings.
评估早产儿视网膜病变（ROP）的金标准是间接检眼镜检查，这种方法主观性较强。RetCam 数字成像系统是一种先进的广角成像系统，更为精确，但它不易获得或负担得起。智能手机正被探索作为一种替代的经济有效且易于获取的成像工具。这是因为现代智能手机具有良好的照明和内置高分辨率摄像头。本研究旨在说明 MII RetCam 辅助智能手机眼底成像（MSFI）在 ROP 记录和监测中的应用。
这是一项单中心、回顾性观察研究，纳入了 2017 年 9 月至 2018 年 11 月期间接受 MSFI 作为 ROP 筛查一部分的所有早产儿。使用 MII RetCam 设备连接 iPhone 4S 和+20 屈光度镜头进行眼底成像，基线和随访时均进行。统计分析使用的是 SPSS 统计软件。
在 33 名患有 ROP 的婴儿中（78.57%）成功捕获了中央和周边视网膜的高质量图像。对 24 名患有 ROP 的婴儿进行的连续成像有助于精确监测疾病并规划管理。还记录了偶然发现的非 ROP 发现。该设备的独特设计使一名检查者能够进行成像。创建的图像数据库可用于学术和咨询目的。较小的视野图像可能会导致难以区分区域，这是一个限制。
MSFI 是一种潜在的替代成像工具，可在资源较少的环境中实现 ROP 的客观记录和监测。
