Rainbow glare by retinal imaging

• Monte-Carlo ray tracing is used to study the visual conditions of an ordered microstructure array on the cornea.
• This study can help elucidate the real cause of rainbow glare as a side effect of IntraLase.
• This study can indirectly verify that extremely large diffraction angles of rainbow glare cannot produce constructive interference on the second-order bright line.

This study aims to determine whether IntraLase surgery can cause rainbow glare. Monte-Carlo ray tracing method is used to study visual conditions of an ordered microstructure array on the cornea. A corneal flap in the simulated eye model can generate numerous microbubbles caused by IntraLase surgery. Moreover, this study evaluates the visual performance under different conditions such as the size and interval of the microbubble structure on the cornea with vary incident angles and diameters of light. The results of this study can help elucidate the real cause of rainbow glare as a side effect of IntraLase.