☝cyclopentolate 1 %
☝diclofenac 0.1 %.
✍Check consent form whether complete or not
✍Check any new ophthalmic problems (evidence of active infection)
✍Mark side of operation.
☝IOL type and power and axis
☝operating position( superior or temporal )
✍Inserting the incorrect IOL has become a NEVER-EVENT ( never allowed to happen)
☝biometry does indeed belong to your patient.
☝axial length and K values consistency in the operated eye
☝axial length and K values consistency in both eyes
• Most individuals have similar axial lengths and corneal curvatures in either eye
• 92% of axial lengths are within the range 21 –25.5 mm
• 99% of K readings are within the range 40–48D.
✍Check appropriate formula used
☝AL <22mm ( hoffer Q or SRK/T)
☝AL 22–24.5 mm ( SRK/T, holladay, haigis)
☝AL >24.6 ( SRK/T)
✍Select appropriate lens power (usually, but not always, aiming for emmetropia)
☝slightly myopic ( 0.50 D) for presbyopic
✍previous corneal refractive surgery
☝enter corrected K values into the suitable IOL calculation formula or use IOL master
☝if patient previously myopic (select the highest IOL power suggested).
☝ if patient previously hyperopic ( select the lowest IOL power suggested ).
Redo biometry whenever
✍axial length is
☝AL < 21.20 mm
☝AL >26.60 mm
✍mean corneal power is
☝K <41 D
✍delta K ( astigmatism) is
✍difference in axial length between both eyes
✍difference in mean corneal power between both eyes
☝> 0.9 D.