Abstract
Pupil size of healthy study participants was measured with infrared-video PupilX pupillometer (MEye Tech GmbH) at 5 different illumination levels (0, 0.5, 4, 32 and 250 lux) before and after cataract surgery. Measurements were performed by the same investigator. 90 images were recorded during a measurement period of 3 seconds. The absolute linear camera resolution was approximately 20 pixels per mm.
Highlights
The pupil size and its relation to visual outcome in cataract and refractive surgery is an important element of optical quality
In conclusion, this study showed a significant decrease of pupil size after cataract surgery in a normal population under scotopic, mesopic and photopic static illuminance conditions
After 4 weeks postoperatively pupil size returned to approximately preoperative levels
Summary
The pupil size and its relation to visual outcome in cataract and refractive surgery is an important element of optical quality. Earlier studies reported influence of cataract surgery on pupil size [2]. Precise and easy measurement of pupil size is important for planning and outcome of refractive surgery [6,12,13]. A recently developed pupillometer PupilX (MEye Tech GmbH) enables to measure bilateral pupil sizes with indirect infrared illuminance conditions simultaneously under constant and adjustable illumination levels, facilitating comparable measurements under scotopic, mesopic and photopic conditions [5]. The aim of this study was to evaluate the influence of cataract surgery on pupil size at well-defined measurement conditions with a novel pupillometer (PupilX)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
