Abstract：
AIM:To evaluate the repeatability of an optical device for measuring the Zernike coefficients of toric intraocular lenses (IOLs) and assess whether its toricity has any impact in its repeatability. METHODS:An experienced technician used the NIMO TR1504 to measure the Zernike coefficients 30 times for an aperture of 4.50 mm for all lenses included. The IOLs included were divided into two group: toric and non-toric ones. The cylindrical powers of the toric lenses included in the present study were 1.00, 1.50, 2.25, 3.00 and 3.75 D. Finally, the repeatability of the NIMO TR1504 was described in terms of within subject standard deviation (Sw) and repeatability limit. RESULTS:The Sw was smaller than 0.011 µm for both lens groups and all Zernike coefficients, and the difference between both groups was smaller than 0.004 µm for all Zernike coefficients. Regarding the repeatability limit, this value was smaller than 0.025 µm for the toric lens group, and smaller than 0.031 µm for the non-toric lens one for all Zernike coefficients. Furthermore, the maximum difference between both lens groups was 0.010 µm. CONCLUSION:The repeatability of the NIMO TR1504 to measure the optical quality is high and independent of the lens toricity. These results reflect that this system is robust and could be used to measure the in-vitro optical quality of either toric or non-toric IOLs.
journal_name
Int J Ophthalmoljournal_title
International journal of ophthalmologyauthors
Ferrer-Blasco T,Domínguez-Vicent A,García-Lázaro S,Díez-Ajenjo MA,Alfonso JF,Esteve-Taboada JJdoi
10.18240/ijo.2018.07.11subject
Has Abstractpub_date
2018-07-18 00:00:00pages
1139-1144issue
7eissn
2222-3959issn
2227-4898pii
ijo-11-07-1139journal_volume
11pub_type
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