Visual Outcomes of LASIK-Induced Monovision in Myopic Patients With Presbyopia

García-González, Montserrat; Teus, Miguel A.; Hernández-Verdejo, José Luis

doi:10.1016/j.ajo.2010.03.022

Cited by 61 publications

(34 citation statements)

References 27 publications

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“…Retrospective studies of monovision in refractive surgery patients have reported success rates of 80%-90%, 81 88%, 82 92.5%, 83 96%, 84 and 98%. 85 However, reduced contrast sensitivity 86 and reduced stereopsis 86,87 are the two major disadvantages of monovision.…”

Section: Outcomes Of Refractive Surgerymentioning

confidence: 99%

Refractive surgery or contact lenses – how and when to decide?

Xu¹,

Jhanji²

2011

OPTO

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Correction of refractive errors can be achieved with spectacles, contact lenses, and refractive surgery. The past decade has seen a surge in the availability of alternatives for patients and surgeons in terms of both surgical and nonsurgical options for the management of refractive errors. Newer generation contact lenses provide enhanced safety and better handling, whereas modern-day refractive surgery presents a plethora of choices based on the clinical characteristics and requirements of patients. We have moved from an era of "one size fits all" to a purely customized way of treating patients with refractive errors. This review presents the background, advantages, and disadvantages of the two most commonly used options for correction of ametropia, ie, contact lenses and refractive surgery.

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Section: Outcomes Of Refractive Surgerymentioning

confidence: 99%

Refractive surgery or contact lenses – how and when to decide?

Xu¹,

Jhanji²

2011

OPTO

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“…Corneal ablation by laser has become a steadily more common treatment for presbyopic patients. [7][8][9][10][11][12][13][14][15][16][17][18][19] Currently, clinics offer mainly two techniques for presbyopia treatment: monovision and multifocal corneal ablation. In monovision, one eye is corrected for distance (normally the dominant eye) while the other eye is corrected for near vision (the nondominant eye).…”

Section: Introductionmentioning

confidence: 99%

“…In monovision, one eye is corrected for distance (normally the dominant eye) while the other eye is corrected for near vision (the nondominant eye). [15][16][17][18][19] Some authors recommend, furthermore, that asphericity of the corrected cornea be incremented for near vision (hyperprolate cornea) to increase spherical aberration and thereby provide greater depth of field. 20 Despite the degree of satisfaction of patients subjected to monovision correction by LASIK (between 88 and 98%), [15][16][17] studies demonstrate a reduction in the contrast-sensitivity function, a loss of visual-discrimination capacity, and a clear worsening of stereoacuity, among other functions.…”

Section: Introductionmentioning

confidence: 99%

“…20 Despite the degree of satisfaction of patients subjected to monovision correction by LASIK (between 88 and 98%), [15][16][17] studies demonstrate a reduction in the contrast-sensitivity function, a loss of visual-discrimination capacity, and a clear worsening of stereoacuity, among other functions. 18,19 In multifocal ablations, the aim is to achieve a multifocal cornea able to correct any visual defect for distance while simultaneously reducing spectacle dependency for near vision. There are two main patterns of multifocal ablations.…”

Section: Introductionmentioning

confidence: 99%

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Designing multifocal corneal models to correct presbyopia by laser ablation

et al. 2012

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Abstract. Two multifocal corneal models and an aspheric model designed to correct presbyopia by corneal photoablation were evaluated. The design of each model was optimized to achieve the best visual quality possible for both near and distance vision. In addition, we evaluated the effect of myosis and pupil decentration on visual quality. The corrected model with the central zone for near vision provides better results since it requires less ablated corneal surface area, permits higher addition values, presents stabler visual quality with pupil-size variations and lower high-order aberrations.

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“…[13][14][15] This clinical practice is based on the assumption that it will be easier to suppress blur in the nondominant eye than in the dominant one. The surgically induced anisometropia should not exceed 2.5 diopters (D), 11,16 with the dominant eye usually being corrected for distance and the nondominant eye for near vision.…”

mentioning

confidence: 99%

Association between Ocular Dominance and Spherical/Astigmatic Anisometropia, Age, and Sex: Analysis of 1274 Hyperopic Individuals

Linke

Baviera²,

Richard

et al. 2012

Invest. Ophthalmol. Vis. Sci.

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PURPOSE. To determine the association between ocular dominance and spherical/astigmatic anisometropia, age, and sex in hyperopic subjects.METHODS. The medical records of 1274 hyperopic refractive surgery candidates were filtered. Ocular dominance was assessed with the hole-in-the-card test. Refractive error (manifest and cycloplegic) was measured in each subject and correlated to ocular dominance. Only subjects with corrected distance visual acuity of >20/22 in each eye were enrolled, to exclude amblyopia. Associations between ocular dominance and refractive state were analyzed by means of t-test, v 2 test, Spearman correlation, and multivariate logistic regression analysis.RESULTS. Right and left eye ocular dominance was noted in 57.4 and 40.5% of the individuals. Nondominant eyes were more hyperopic (2.6 6 1.27 diopters [D] vs. 2.35 6 1.16 D; P < 0.001) and more astigmatic (À1.3 6 1.3 D vs. À1.2 6 1.2 D; P ¼ 0.003) compared to dominant eyes. For spherical equivalent (SE) anisometropia of >2.5 D (n ¼ 21), the nondominant eye was more hyperopic in 95.2% (SE 4.7 6 1.4 D) compared to 4.8% (1.8 6 0.94 D; P < 0.001) for the dominant eye being more hyperopic. For astigmatic anisometropia of >2.5 D (n ¼ 27), the nondominant eye was more astigmatic in 89% (mean astigmatism À3.8 6 1.1 D) compared to 11.1% (À1.4 6 1.4 D; P < 0.001) for the dominant eye being more astigmatic.CONCLUSIONS. The present study is the first to show that the nondominant eye has a greater degree of hyperopia and astigmatism than the dominant eye in hyperopic subjects. The prevalence of the nondominant eye being more hyperopic and more astigmatic increases with increasing anisometropia. (Invest Ophthalmol Vis Sci. 2012;53:5362-5369) DOI: 10.1167/iovs.11-8781 F unctional lateralization occurs in the paired organs of the body, such as hands, legs, eyes, and cerebral hemispheres; but the exact mechanisms resulting in lateralization as well as the strength and quality of lateralization remain obscure.In 1903, Rosenbach claimed that most people have a dominant eye, even though each of their two eyes in isolation may provide equal vision and, in unequal vision, the dominant eye is not always the eye with better visual acuity. In general, ocular dominance is defined as the tendency to prefer visual input from one eye over the other 2,3 and may be further characterized as a status whereby one of the eyes commonly dominates or leads the other eye, both in fixation and attention and in perceptive function. 4 Eye dominance, which is commonly determined with the hole-in-the-card test, provides the foundation for a range of clinical decisions, including contact lens wear, 5,6 cataract surgery, 7,8 and monovision presbyopic treatment, 9-11 and is thought to be important in the control of reading. 12The role of ocular dominance in surgically induced monovision can be assessed by looking at success rates and patient satisfaction after monovision refractive surgery. [13][14][15] This clinical practice is based on the assumption that it will be easier to suppress b...

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Visual Outcomes of LASIK-Induced Monovision in Myopic Patients With Presbyopia

Cited by 61 publications

References 27 publications

Refractive surgery or contact lenses – how and when to decide?

Refractive surgery or contact lenses – how and when to decide?

Designing multifocal corneal models to correct presbyopia by laser ablation

Association between Ocular Dominance and Spherical/Astigmatic Anisometropia, Age, and Sex: Analysis of 1274 Hyperopic Individuals

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Visual Outcomes of LASIK-Induced Monovision in Myopic Patients With Presbyopia

Cited by 61 publications

References 27 publications

Refractive surgery or contact lenses &ndash; how and when to decide?

Refractive surgery or contact lenses &ndash; how and when to decide?

Designing multifocal corneal models to correct presbyopia by laser ablation

Association between Ocular Dominance and Spherical/Astigmatic Anisometropia, Age, and Sex: Analysis of 1274 Hyperopic Individuals

Contact Info

Product

Resources

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Refractive surgery or contact lenses – how and when to decide?

Refractive surgery or contact lenses – how and when to decide?