Comparison of the size of YAG flare in implantable contact lens with intraocular lens implantation and peripheral iridectomy

中国实用眼科杂志 Pub Date : 2017-08-10 DOI:10.3760/CMA.J.ISSN.1006-4443.2017.08.018

Yong-Ming Shen, F. Zhu

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Abstract

Objective To compare the clinical significance of large and small spot YAG in Iridectomy before the Implantable Collamer Lens (ICL) implantation. Methods Seventy cases were randomly divided into group A and B, group A of 34 patients with large YAG spot iris peripheral laser (250um energy, the total energy 11-13mJ at the top 11 o’clock to 1 o’clock direction iris roots perforation of about 1×2mm) group B of 33 cases with small YAG spot iris peripheral laser (100um energy, the total energy 11-13mJ at the top 11 o’clock to 1 o’clock direction iris root perforation of about 1×2mm). Observation of intraocular pressure changes after laser surgery. Results Group A large spot and group B small spot get high intraocular pressure two hours later (Increased IOP 8 mmHg).There was no significant difference between the two groups, intraocular pressure increased 24 hours later (Increased intraocular pressure 8mmHg). Conclusions The small-spot YAG laser in the peripheral iridectomy produces iris depigmentation, causes inflammatory response, increase intraoc-ular pressure. The larger spot YAG laser iridotomy has advantages in hole forming of the iris peripheral edge, it has clinical significance to clinical iridal laser drilling, especially in patients with thicker iris stroma and more pigments. Key words: YAG laser; Peripheral iridectomy; Intraocular pressure

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植入性接触镜与人工晶状体植入术和周围虹膜切除术中YAG耀斑大小的比较

目的比较大、小斑点YAG在虹膜切除术前植入术中的临床意义。方法将70例患者随机分为A组和B组，A组34例使用大YAG斑虹膜周围激光(250um能量，总能量11- 13mj在上11点至1点方向虹膜根部穿孔约1×2mm) B组33例使用小YAG斑虹膜周围激光(100um能量，总能量11- 13mj在上11点至1点方向虹膜根部穿孔约1×2mm)。激光术后眼压变化的观察。结果A大斑组和B小斑组2 h后眼压升高(IOP升高8 mmHg)。两组间差异无统计学意义，24小时后眼压升高(升高8mmHg)。结论小点YAG激光外周虹膜切除术使虹膜色素脱色，引起炎症反应，增加眼内压。较大光斑YAG激光虹膜切开术在虹膜外周边缘成孔方面具有优势，对临床虹膜激光钻孔尤其对虹膜间质较厚、色素较多的患者有临床意义。关键词:YAG激光器;周边虹膜切除术;眼内压

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中国实用眼科杂志

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期刊介绍： China Practical Ophthalmology was founded in May 1983. It is supervised by the National Health Commission of the People's Republic of China, sponsored by the Chinese Medical Association and China Medical University, and publicly distributed at home and abroad. It is a national-level excellent core academic journal of comprehensive ophthalmology and a series of journals of the Chinese Medical Association. China Practical Ophthalmology aims to guide and improve the theoretical level and actual clinical diagnosis and treatment ability of frontline ophthalmologists in my country. It is characterized by close integration with clinical practice, and timely publishes academic articles and scientific research results with high practical value to clinicians, so that readers can understand and use them, improve the theoretical level and diagnosis and treatment ability of ophthalmologists, help and support their innovative development, and is deeply welcomed and loved by ophthalmologists and readers.