From: Intraocular lens power calculation for the equine eye
Breed
IOL dioptric power derived using Binkhorst formula
IOL dioptric power derived using Retzlaff formula
Haflinger
19.55 D
19.36 D
Friesian
18.20 D
18.03 D
Pony
18.27 D
18.07 D
Shetland pony
19.03 D
18.80 D
Warmblood
18.66 D
18.48 D