Change of Corneal Coma Aberration Depending on Incisional Location in Cataract Surgery

Park, Jin Hyoung

Change of Corneal Coma Aberration Depending on Incisional Location in Cataract Surgery

Monday, April 28, 2014: 8:06 AM

Room 152 (Boston Convention and Exhibition Center)

Jin Hyoung Park, MD, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, Seoul, South Korea

In Seok Song, MD, Asan medical center, Seoul, Korea, Seoul, South Korea

Jong Hoon Park, MD, Asan medical center, Seoul, South Korea

Jae Yong Kim, MD, PhD, Asan Medical Center, Seoul, South Korea

Myoung Joon Kim, MD, Asan Medical Center, Seoul, Korea, Republic of

Hungwon Tchah, MD, Asan Medical Center, Seoul, Korea, Republic of

Narrative Responses:

Purpose
To investigate the change of corneal coma aberration depending on the incisional location in cataract surgery

Methods
One hundred sixty-three eyes were underwent cataract surgeries with 2.2 mm limbal incisions. The eyes were divided into 2 groups with 12 o’clock incision and 9 o'clock incision. Preoperative corneal vertical and horizontal coma aberrations were compared to postoperative coma using OPD-Scan III (Nidek, Japan).

Results
The 12 o’clock incision group showed changes of corneal coma aberration of -0.122 ± 0.205 µm (P=0.016) and +0.030 ± 0.090 µm (P=0.292) in vertical and horizontal coma, respectively. The 9 o'clock incision group showed changes of corneal coma aberration of +0.044 ± 0.199 µm (P=0.247) and +0.025 ± 0.095 µm (P=0.074) in vertical and horizontal coma, respectively.

Conclusion
The 12 o’clock incision caused a negative change of corneal vertical coma aberration in the 2.2 mm limbal incision cataract surgery. This could be a factor to consider when choosing the incision location in cataract surgery.