#PAGE_PARAMS# #ADS_HEAD_SCRIPTS# #MICRODATA#

Influence of Spheric and Aspheric IOLs on Visual Acuity and Contrast Sensitivity


Authors: M. Halás ml.;  K. Peško;  Z. Oláh;  V. Krásnik;  P. Strmeň
Authors‘ workplace: Klinika oftalmológie LFUK a UNB, Nemocnica Ružinov, Bratislava, prednosta prof. MUDr. P. Strmeň, CSc.
Published in: Čes. a slov. Oftal., 66, 2010, No. 5, p. 209-212
Category: Original Article

Overview

Purpose:
To compare best corrected visual acuity and contrast sensitivity in patients with aspheric and spheric intraocular lens (IOL) after uncomplicated cataract surgery in photopic and mesopic conditions.

Methods:
38 eyes after uncomplicated cataract surgery were divided in two groups. A (18 eyes, average 69,5 ± 6,89 years, spheric IOLs Softec 1, Lenstec, Inc. USA); B (20 eyes, average 69,47 ± 9,44 years, aspheric IOLs Softec HD, Lenstec, Inc. USA). Follow up 3.–5. day and 4.–5. week postoperatively.

Results:
Best corrected visual acuity in group A was 20/23, in group B was 20/22. Contrast sensitivity in photopic conditions between group A and B were nonsignificant. Contrast sensitivity in scotopic conditions was in group B (aspheric IOLs) significant in comparison to group A (spheric IOLs).

Conclusions:
Aspheric IOLs in scotopic light conditions provide patients with significant better contrast sensitivity than in patients with spheric IOLs.

Key words:
aspheric, spheric, contrast sensitivity, photopic light conditions, scotopic light conditions


Sources

1. Tzelikis, P.F., Akaishi, L., Trindade, F.C., Boteon, J.E.: Spherical Aberration and Contrast Sensitivity in Eyes Implanted with Aspheric and Spherical Intraocular Lenses: A Comparative Study. Am. J. Ophthalmol. 145, 2008, May (5), 827–833.

2. Svoreňová, I.: Validita vyšetrovacích metód makuly. Písomná práca pre skúšku z oktorandského minima z dboru Oftalmológia; LFUK Bratislava 2008; 40.–42., celkový počet strán 88.

3. Kohnen, T., Klaproth, O.K.: Aspheric intraocular lenses. Ophthalmologe 105, 2008 Mar. (3), 234–240.

4. Vlková, ., Došková, H.: Akrylické multifokální nitrooční čočky. Transacta Ophthalmologica Slovaca, 1, 2001, 45–47.

5. Bellucci, R., Morselli, S., Pucci, V.: Spherical aberration and coma with an aspherical and a spherical intraocular lens in normal age-matched eyes. J. Cataract. Refract. Surg. 33, 2007, Feb. (2), 203 – 209.

6. Yao, K., Tang, X.J., Chen, P.Q., Shentu, X.C., Hu, P.K., Chen, B.B.: Clinical comparison study of aspheric and spherical intraocular lenses. Zhonghua Yan Ke Za Zhi 43, 2007, Aug (8), 709–712.

7. Caporossi, A., Casprini, F., Martone, G., Balestrazzi, A., Tosi, G.M., Ciompi, L.: Contrast sensitivity evaluation of aspheric and spherical intraocular lenses 2 years after implantation. J. Refract. Surg. 25, 2009, Jul (7), 578–590.

8. Awwad, S.T., Lehmann, J.D., McCulley, J.P., Bowman, R.W.: A comparison of higher order aberrations in eyes implanted with AcrySof IQ SN60WF and AcrySof SN60AT intraocular lenses. Eur. J. Ophthalmol. 17, 2007 May-Jun, 320–326.

9. Trueb, P.R. et al.: Visual acuity and contrast sensitivity in eyes implanted with aspheric and spherical intraocular lenses. Ophthalmology 116, 2009 May (5), 890–895.  

10. Ohtani, S. et al.: Intraindividual comparison of aspherical and spherical intraocular lenses of same material and platform. Ophthalmology 116, 2009 May (5), 896–901.  

Labels
Ophthalmology
Topics Journals
Login
Forgotten password

Enter the email address that you registered with. We will send you instructions on how to set a new password.

Login

Don‘t have an account?  Create new account

#ADS_BOTTOM_SCRIPTS#