Keratoconus l Challenging Cases

Interactive SymposiaChallenging Cases

Paulo Ferrara, MD, PhD

D.L.D.G., MALE, 23 Y.O

• PRE OP DATA

• RE = -3.00 – 4.00 X 180 = 20/20

• LE = - 3.00 – 4.00 X 180 = 20/20

• RE Q VALUE = -0.35

• LE Q VALUE = -0.40

• RE C.V. = 57.7 mm

• LE C.V. = 57.7 mm

D.L.D.G

• Surgical strategy

• OU 02 YFR 160/15

D.L.D.G

• POST OP DATA

• RE = -1.50 - 1.00 X 125 = 20/25

• LE = -1.00 – 1,00 X 80 = 20/25

• RE Q VALUE = +0.50

• LE Q VALUE = +0.52

• RE C.V. = 58.1 mm

• LE C.V. = 58.8 mm

D.L.D.G

• COMPARATIVE DATA PRE X POST OP

• RE V.A.= LOST 01 LINE

• LE V.A = LOST 01 LINE

• RE Q VALUE = INCREASE -0.85 X -0.25

EXPECTED FROM THE GRAPHIC

• LE Q VALUE = INCREASE -0.92 X -0.25 EXPECTED

FROM THE GRAPHIC