EyeWorld Asia-Pacific September 2019 Issue

Alcon Wavelight ® USER MEETING HIGHLIGHTS 16-17 March 2019 HONG KONG The Alcon Wavelight ® User Meeting was held on March 16 and 17, 2019 in Hong Kong. Experts DQG NH\ RSLQLRQ OHDGHUV LQ UHIUDFWLYH VXUJHU\ DFURVV WKH $VLD 3DFLȴF UHJLRQV FDPH WRJHWKHU WR VKDUH WKHLU H[SHULHQFH DQG DOLJQ ZLWK WKH ODWHVW GHYHORSPHQWV LQ UHIUDFWLYH VXUJHU\ 7KH REMHFWLYHV RI WKH PHHWLQJ ZHUH WR SURYLGH D IRUXP WR H[FKDQJH EHVW SUDFWLFHV DQG WHFKQLFDO H[SHULHQFHV LQ WRSRJUDSK\ JXLGHG WUHDWPHQWV IHPWRVHFRQG ODVHU DQG &RQWRXUD TM Vision. .HHSLQJ SDFH ZLWK LQQRYDWLRQ XSFRPLQJ QHZ WHFKQRORJLHV VXFK DV 6WUHDPOLJKW TM and ray tracing were discussed. )520 7232*5$3+< *8Ζ'(' 75($70(17 72 &217285$ TM 9Ζ6Ζ21 7KH 1HHG IRU 7RSRJUDSK\ *XLGHG 7UHDWPHQWV Prof. Zhang Fengju 7RSRJUDSK\ JXLGHG WUHDWPHQW LV GHVLJQHG WR regularize the cornea. Indications for topography- JXLGHG WUHDWPHQW LQFOXGH LUUHJXODU FRUQHDV FRUQHDO VFDUV NHUDWRFRQXV WUHDWPHQW RI FRPSOLFDWLRQV RI SUHYLRXV UHIUDFWLYH VXUJHU\ VXFK DV GHFHQWHUHG DEODWLRQV VPDOO RSWLFDO ]RQHV DQG LUUHJXODU DVWLJPDWLVP Conventional refractive surgeries have several limitations with a considerable proportion of patients experiencing visual symptoms such as night glare, halo, and decreased night vision, impacting night driving and working. 1 Higher order aberrations resulting from pre-operative corneal irregularities, increased coma due to decentered ablations and increased post-operative spherical aberrations (from small optical zones), are some of the common factors responsible for poor quality vision after conventional refractive surgeries. Prof. Zhang Fengju, a leading expert in refractive surgery, explained that with technological advances, twomaincustomizedsolutions,wavefront- guided and corneal topography-guided treatments, are now available. Wavefront-guided ablations use static measurements of the eye. However, human wavefront aberrations are dynamic and constantly changing with accommodation, while topography- guided treatments use information from corneal topography and do not change with accommodation.