Department of Ophthalmology, Gangneung Asan Medical Center, Gangneung, Korea.
Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea.
Indian J Ophthalmol. 2019 Oct;67(10):1624-1627. doi: 10.4103/ijo.IJO_316_19.
To evaluate light exposure from microscope versus intracameral illuminations to patient's and surgeon's retina during cataract surgery.
Thirty consecutive patients who had cataract surgery using microscope and intracameral illuminations. At the point of the ocular of an operating microscope, optical illuminance and irradiance from the microscope illumination (60, 40, 20% intensity) and the intracameral illumination (60% intensity) were measured using a light meter and a spectrometer at a pause after lens capsule polishing in cataract surgery.
Average illuminance (lux) was 1.46, 0.66, 0.27, and 0.1 from 60%, 40%, 20% intensity microscope illuminations and 60% intracameral illumination. Average total spectral irradiance (μW/cm2) was 1.25, 0.65, 0.26, and 0.03 from 60%, 40%, 20% intensity microscope illuminations and 60% intracameral illumination.
Microscope ocular illuminance and irradiance during cataract surgery were higher in the microscope illumination than in the intracameral illumination. It suggests that light exposure reaching patient's and surgeon's retina during cataract surgery is lower in the intracameral illumination than in the microscope illumination.
评估白内障手术中显微镜与眼内照明对视神经和视网膜的光暴露。
连续观察 30 例行白内障手术的患者，术中使用显微镜和眼内照明。在白内障手术中晶状体囊抛光暂停时，在手术显微镜的眼部位置，使用光度计和光谱仪测量显微镜照明（60%、40%、20%强度）和眼内照明（60%强度）的光强度和辐照度。
平均照度（勒克斯）分别为 60%、40%、20%强度的显微镜照明和 60%眼内照明为 1.46、0.66、0.27、0.1。平均总光谱辐照度（μW/cm2）分别为 60%、40%、20%强度的显微镜照明和 60%眼内照明为 1.25、0.65、0.26、0.03。
白内障手术中显微镜眼部的照度和辐照度高于眼内照明。这表明在白内障手术中，眼内照明到达患者和手术者视网膜的光暴露低于显微镜照明。
