LCA-VISION INC

CUSIP: 501803308 Class: COM PAR $.001

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q4 2013
Shares 21,248 Value ($000) $83 Avg Close — Range —
Q3 2013
Shares 7,118 Value ($000) $26 Avg Close — Range —
Q2 2013
Shares 8,439 Value ($000) $25 Avg Close — Range —