IOL Calculation Quanderies20/40 (BAT 20/80) • Milky NSC OS > OD
(“Myopic cataracts”)
trabeculitis s/p tube shunt OD
IOL Calcs - Lenstar • Axial length:
• OD 27.32 mm • OS 29.57 mm
• Auto-keratometry: • OD 42.29/43.00 @ 159
• Avg 42.61
• IOL = SN60WF: • OD 11.0D → SE -0.43D • OS 5.0D → SE -0.41D 3
}Δ 2.25
• OD 27.25 mm • OS 29.50 mm
• Auto-keratometry: • OD 42.29/43.21 @ 150
• Avg 42.75
• IOL = SN60WF: • OD 11.0D → SE -0.47D • OS 5.0D → SE -0.45D 4
Are we good?
hyperopic errors • Adjusted axial length:
• Holladay 1 formula • New axial lengths:
• OD 26.85 mm (from 27.25 mm)
• OS 28.72 mm (from 29.5 mm)
• IOL = SN60WF: • OD 12.0D → SE -0.34D • OS 6.5D → SE -0.17D 5
ALADJ = (0.8289 * ALIOLM) + 4.2663
Post-Op UCVA 20/20 OU
*Wang L, et al. J Cataract Refract Surg 2011; 37(11):2018-2027
Case #2
• PPLOV & Monocular Diplopia OU 11/2012: • OD +1.25 +1.00 x 025
20/40- (BAT 20/70) • OS +1.00 +0.25 x 010
20/50 (BAT 20/80) • Nuclear & cortical
cataracts OU
• 68-y/o w/ Fuch’s s/p DSAEK OU: • OS 2005, OD 2006 • Post-Op BCVA 20/20
OU
• OD 24.02 mm
• OS 24.03 mm
• OD 23.99 mm
• OS 24.01 mm
9
Target Refraction (D)
OS - First
Implanted IOL = SN60WF 22.5D: UCVA 20/20- (MR -0.50 +0.75 155 20/20+)
} } 16
Target Refraction (D)
OD - Second
} }