Copenhagen 2016 Registration Programme Exhibitor Information Virtual Exhibition Satellite Meetings Glaucoma Day 2016 Hotel Star Alliance
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10 - 14 Sept. 2016, Bella Center, Copenhagen, Denmark

This Meeting has been awarded 27 CME credits

 

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Comparison of IOL power calculation accuracy by the SRK/T and Haigis formulas on short eyes using applanation ultrasound biometry

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Session Details

Session Title: Presented Poster Session: Phakic IOLs III

Session Date/Time: Tuesday 13/09/2016 | 09:30-11:00

Paper Time: 10:30

Venue: Poster Village: Pod 4

First Author: : D.Belov RUSSIA

Co Author(s): :    V. Nikolaenko              

Abstract Details

Purpose:

PURPOSE is to compare the IOL power calculation accuracy by applanation A-scan ultrasound biometry by the SRK/T and Haigis formulas in eyes with axial length less than 22,00 mm.

Setting:

Saint Petersburg city multi-field hospital

Methods:

Observation group consisted of 30 patients (30 eyes) with axial length less than 22,00 mm (20,10-21, 98 mm) observed with applanation A-scan ultrasound biometry.IOL power calculation executed the SRK/T and Haigis formulas. In three months after phacoemulsification with IOL implantation manifest refraction compared with aim refraction. Depending on amplitudes deviation from aim refraction were organized three groups: first group - calculation error within ±0,5 D, second group - calculation error between ±0,5 – 1,25 D, third group - calculation error more than ±1,25 D. For each formula was determined average calculation error, absolute calculation error and theirs average mean deviation.

Results:

Using applanation A-scan ultrasound biometry for IOL power calculation the SRK/T formula was more accurate in 73% of all cases compared with Haigis formula. Usage of the Haigis formula for calculation leads to postoperative myopic shift (average shift 1,04±0,73 D).

Conclusions:

Using applanation A-scan ultrasound biometry for IOL power calculation the SRK/T formula was more accurate in 73% of all cases compared with Haigis formula. Usage of the Haigis formula for calculation leads to postoperative myopic shift (average shift 1,04±0,73 D).

Financial Disclosure:

NONE

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