Barroso LR, Montes GLJ, Gutiérrez CM, Ramos PY

Language: Spanish
References: 12
Page: 1-13
PDF size: 266.42 Kb.

ABSTRACT

Objective: Determine the relationship between subjective lens opacity classification by LOCS III, best corrected visual acuity and objective visual quality analysis by aberrometry.
Methods: A cross-sectional observational descriptive study was conducted based on LOCS III to classify senile cataracts in patients with visual acuity above 0.7 and objective visual quality measurement by wavefront analysis attending the Ocular Microsurgery Center of Ramón Pando Ferrer Cuban Institute of Ophthalmology from June 2016 to December 2017.
Results: Cortical cataracts were associated to a large number of higher-order ocular aberrations, mainly coma and trefoil. Significant spherical aberration values were also found in the nuclear cataract group. Cataracts in the posterior subcapsular group did not display a prevailing aberration type. It was not possible to determine the relationship between the magnitude of the cataract as classified by LOCS III and visual quality indicators or best corrected visual acuity, because sample size was insufficient to be related to the large number of categories in LOCS III.
Conclusions: In patients with senile cataract and good visual acuity, the type and degree of opacity as classified by LOCS III determines the type and magnitude of the aberrations, and thus the deterioration of visual quality.

REFERENCES

1. David BE. Contrast sensitivity and glare testing. in: William JB, editor. Borish's clinical refracfion. St. Louis: Elsevier; 2006. p. 247-88.

2. Parede TRR, Torricelli AAM, Mukai A, Vieira Netto M, Bechara SJ. Quality of vision in refractive and cataract surgery, indirect measurers. Arquiv Bras Oftalmol. 2013;76(6):386-90.

3. Mello GR, Rocha KM, Santhiago MR, Smadja D, Krueger RR. Applications of wavefront technology. J Cataract Refract Surg. 2012;38:1671-83.

4. Namba H, Kawasaki R, Sugano A, Murakami T, NishitsukaK, Kato T, Kayama T, et al. Age-related changes in ocular aberrations and the Yamagata study (Funagata). Cornea. 2017;36(Suppl 1):S34-S40.

5. Kuroda T, Fujikado T, Maeda N, Oshika T, Hirohara Y, Mihashi T. Wavefront Analysis in Eyes With Nuclear or Cortical Cataract. Am J Ophthalmol. 2002;134:1-9.

6. Chylack LT Jr, Wolfe JK, Singer DM, Leske MC, Bullimore MA, Bailey IL, Friend J, Mc Carthy D, Wu SY. The Lens Opacities Classification System III. The Longitudinal Study of Cataract Study Group. Arch Ophthalmol. 1993;111(6):831-6.

7. Hashemi H, Khabazkhoob M, Jafarzadehpur E, Yekta A, Emamian MH, Shariati M, Fotouhi A. Higher order aberrations in a normal adult population. J Curr Ophthalmol. 2016;27(3-4):115-24.

8. Paz Filgueira C, Sánchez RF, Issolio LA, Colombo EM. Straylight and visual quality on early nuclear and posterior subcapsular cataracts. Curr Eye Res. 2016;41(9):1209-15.

9. Zhu X, Ye H, He W, Yang J, Dai J, Lu Y. Objective functional visual outcomes of cataract surgery in patients with good preoperative visual acuity. Eye (Lond). 2017;31(3):452-9.

10. Lyall DA, Srinivasan S, Gray LS. Changes in ocular monochromatic higher-order aberrations in the aging eye. Optom Vis Sci. 2013;9:996-1003.

11. Rocha KM, Nosé W, Bottós K, Bottós J, Morimoto L, Soriano E. Higher-order aberrations of age-related cataract. J Cataract Refract Surg. 2007;33(8):1442-6.

12. Cheng Y, Shi X, Cao XG, Li XX, Bao YZ. Correlation between contrast sensitivity and the lens opacities classification system III in age-related nuclear and cortical cataracts. Chin Med J (Engl). 2013;126(8):1430-5.