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John Wong, Philemon Huang, Han Bor Fam; Reliability of IOL Master 700 biometry readings in eyes with dense cataracts. Invest. Ophthalmol. Vis. Sci. 2018;59(9):430.
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© ARVO (1962-2015); The Authors (2016-present)
To report visual and refractive outcomes of phacoemulsification in eyes that failed IOLMaster 500 biometry but underwent successful IOLMaster 700 biometry. We also compared the biometry readings obtained from immersion ultrasound biometry and IOLMaster 700 biometry.
Forty-eight eyes with dense cataracts which failed IOLMaster500 biometry underwent both IOLMaster 700 and ultrasound biometry. The axial length readings, anterior chamber depth, lens thickness and time required to obtain biometry between the 2 methods were compared. The post-operative refractive outcomes using IOLMaster 700 in these eyes are reported.
Forty-three eyes (89.6%) underwent successful IOLMaster 700 biometry. Eyes were measured longer by IOLMaster 700 compared to immersion ultrasound (23.67±1.45mm vs 23.57±1.42mm, p<0.0001). The was no statistically significant difference between the measured values of anterior chamber depth and lens thickness. With regards to the post-operative refractive outcomes in these patients, the mean error was +0.097±0.34D and the mean absolute error 0.27±0.22D.
The IOLMaster 700 was able to acquire biometry readings in the majority of dense cataracts. These readings for IOL calculations yielded good post-operative results in our patients.
This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.
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