Success of monovision in presbyopes: Review of the literature and potential applications to refractive surgery

Jain, Sandeep; Arora, Indu; Azar, Dimitri T.

doi:10.1016/s0039-6257(96)82015-7

Cited by 206 publications

(157 citation statements)

References 30 publications

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“…Some patients do not tolerate monovision owing to reduced contrast sensitivity and stereoacuity, as well as esophoric shifts. 10,11 During the time that the patient implanted with an LAL acclimated to monovision, he or she would have to wear protective UV glasses so the lens would not develop undesired optical changes from outside ambient light exposure.…”

Section: Discussionmentioning

confidence: 99%

Light-Adjustable Lens Complication

Hafezi¹,

Seiler²,

Iseli³

2010

Ophthalmology

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Purpose: To determine whether residual myopia could be corrected postoperatively using the light-adjustable lens (LAL) technology in patients undergoing cataract surgery and LAL implantation.Design: A prospective clinical study was conducted at Codet Vision Institute in Tijuana, Mexico. The LALs were implanted that would purposely result in myopic errors of up to Ϫ1.5 D (diopter). The LAL was treated with a spatial intensity profile delivered by a digital light delivery device to induce a targeted myopic refractive change. Once the desirable myopic correction was achieved, the LAL was treated again to lock-in the lens power.Participants: Fourteen eyes of 14 patients were studied. Methods: The manifest refraction, uncorrected visual acuity (UCVA), and best-or spectacle-corrected visual acuity (BCVA), were measured with follow up time of 1 to 9 months to determine the achieved refractive corrections and their stability.Main Outcome Measures: We measured UCVA and BCVA, achieved versus targeted refractive outcome, and refractive stability with follow up time of 1 to 9 months.Results: Of 14 eyes, 13 eyes (92.9%) achieved 0.25 D of the target refraction at 1 day post lock-in with 100% of the eyes achieving the targeted refractive adjustment within 0.5 D or better with up to 9 months postoperative follow-up. All eyes treated show no change in manifest spherical refraction Ͼ0.25 D between 1 day post lock-in, and 3, 6, and 9 months postoperative visits. The data demonstrate the stability of the achieved refractive change after the adjustment and lock-in procedures. The mean rate of change was 0.006 D per month, which is 6 times more stable than that of laser corneal refractive procedures.Conclusions: Residual myopia errors up to Ϫ1.5 D were successfully corrected with precision and significant improvement in UCVA and without compromising BCVA using the LAL technology.Financial Disclosure(s): Proprietary or commercial disclosure may be found after the references.

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Section: Discussionmentioning

confidence: 99%

Light-Adjustable Lens Complication

Hafezi¹,

Seiler²,

Iseli³

2010

Ophthalmology

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“…Recently contact lenses and intraocular lenses with various refractive power zones have been introduced; however, it seems these lenses may show reduced image quality at relatively large pupillary diameters at dawn, twilight, or during the night (33)(34)(35). Correction by means of so-called monovision (one eye corrected for distance, the other for near vision) is also possible, but at the cost of restricted stereopsis (36).…”

Section: Cylindrical Ametropiamentioning

confidence: 99%

Refractive errors

Schiefer¹,

Kraus²,

Baumbach³

et al. 2016

Deutsches Ärzteblatt International

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“…In traditional monovision, anisometropia is induced to the nondominant eye, thereby correcting it for near vision, whereas the dominant eye remains corrected for distant vision. [18][19][20] Via suppression of the blurred retinal image of the defocused eye, 21 through-focus binocular visual acuity (VA) is approximately determined by the monocular acuity of the optically superior eye. 22,23 Monovision can be implemented with contact lenses, 22,24,25 corneal refractive surgery, [26][27][28][29] or monofocal IOLs following crystalline lens removal in cataract surgery.…”

mentioning

confidence: 99%

Modified Monovision With Spherical Aberration to Improve Presbyopic Through-Focus Visual Performance

Zheleznyak

Sabesan

et al. 2013

Invest. Ophthalmol. Vis. Sci.

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PURPOSE.To investigate the impact on visual performance of modifying monovision with monocularly induced spherical aberration (SA) to increase depth of focus (DoF), thereby enhancing binocular through-focus visual performance. METHODS.A binocular adaptive optics (AO) vision simulator was used to correct both eyes' native aberrations and induce traditional (TMV) and modified (MMV) monovision corrections. TMV was simulated with 1.5 diopters (D) of anisometropia (dominant eye at distance, nondominant eye at near). Zernike primary SA was induced in the nondominant eye in MMV. A total of four MMV conditions were tested with various amounts of SA (60.2 and 60.4 lm) and fixed anisometropia (1.5 D). Monocular and binocular visual acuity (VA) and contrast sensitivity (CS) at 10 cyc/deg and binocular summation were measured through-focus in three cyclopledged subjects with 4-mm pupils.RESULTS. MMV with positive SA had a larger benefit for intermediate distances (1.5 lines at 1.0 D) than with negative SA, compared with TMV. Negative SA had a stronger benefit in VA at near. DoF of all MMV conditions was 3.5 6 0.5 D (mean) as compared with TMV (2.7 6 0.3 D). Through-focus CS at 10 cyc/deg was significantly reduced with MMV as compared to TMV only at intermediate object distances, however was unaffected at distance. Binocular summation was absent at all object distances except 0.5 D, where it improved in MMV by 19% over TMV. CONCLUSIONS.Modified monovision with SA improves through-focus VA and DoF as compared with traditional monovision. Binocular summation also increased as interocular similarity of image quality increased due to extended monocular DoF.Keywords: aberrations, presbyopia, monovision, binocular adaptive optics P resbyopia, the age-related loss of accommodation, mostly affects the population aged over approximately 50 years.

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Success of monovision in presbyopes: Review of the literature and potential applications to refractive surgery

Cited by 206 publications

References 30 publications

Light-Adjustable Lens Complication

Light-Adjustable Lens Complication

Refractive errors

Modified Monovision With Spherical Aberration to Improve Presbyopic Through-Focus Visual Performance

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