Simple device for quantifying the influence of halos after lasik surgery

摘要: We present a simple device (called halometer) to detect and quantify the phenomenon of halos after certain surgical proce- dures, such as refractive surgery. The task subject consists ba- sically discriminating, dark adaptation, small light source around central high-luminance stimulus. device, which is con- nected computer, provides disturbance index measure effect on observer's vision. Tested with normal subjects patients LASIK (laser in situ keratomileusis) surgery, this ap- paratus proved sufficiently sensitive who had undergone © 2003 Society Photo-Optical Instrumentation En- gineers. (DOI: 10.1117/1.1607333)