Study of Possible Predictors Associated with Self-Assessed Visual Function after Cataract Surgery

Rønbeck, Margrethe; Lundström, Mats; Kugelberg, Maria

doi:10.1016/j.ophtha.2011.04.013

Cited by 47 publications

(45 citation statements)

References 26 publications

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“…Other researchers have shown that patients undergoing bilateral cataract surgery have greater subjective satisfaction along with clinical improvement in acuity and stereopsis than those undergoing unilateral surgery. 7,16–17,23–25 Moreover, those who undergo second-eye surgery have a higher likelihood of meeting the driver’s license field of vision requirement, 30 and one study showed a non-significant trend toward fewer falls in patients with prior unilateral cataract surgery randomized to second-eye surgery versus no surgery. 24 …”

Section: Discussionmentioning

confidence: 99%

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Functional Improvement after One- and Two-Eye Cataract Surgery in the Salisbury Eye Evaluation

Lee¹,

Muñoz²,

West³

et al. 2013

Ophthalmology

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Purpose To determine the impact cataract and cataract surgery have on clinical measurements of vision, reading speed, objective mobility performance, and subjective visual functioning. Design Prospective, population-based study Participants 1,739 Salisbury Eye Evaluation (SEE) participants without previous cataract surgery with bilateral baseline best corrected visual acuity (BCVA) of logarithm of the Minimum Angle of Resolution (logMAR) ≤ 0.3 (20/40 or better) or cataract surgery between round 1 and 2. Methods Participants were categorized based on cataract surgery by round 2 into: no surgery, unilateral surgery, or bilateral surgery. Visual performance, mobility-based tasks, and the Activities of Daily Vision Scale (ADVS) were measured at baseline and two years. Mobility score was converted into a z-score, by subtracting the participant’s time from the population baseline average then dividing by the standard deviation. Comparisons were made between the no surgery and surgery groups using multivariate linear regression. Main Outcome Measures Change in bilateral best corrected visual acuity in logMAR, contrast sensitivity, reading speed in words per minute (wpm), mobility score, and ADVS. Results During the study period, 29 participants had cataract surgery on both eyes, 90 had unilateral surgery, and 1,620 had none. After adjusting for baseline value, demographics, depression and mental status, the unilateral surgery group BCVA improved 0.04 logMAR (p=0.001) and the bilateral group improved 0.13 compared to no surgery (p<0.001). Overall mobility declined in all groups. The unilateral group z-score declined 0.18 more than the no surgery group (p=0.02), while the bilateral group showed a 0.18 z-score improvement compared to no surgery (p=0.19). Change in reading speed significantly improved in the unilateral and bilateral groups compared to no surgery (12 and 31 words per minute, respectively). The bilateral surgery group showed significant positive change in ADVS compared to no surgery (5 points relative improvement, p = 0.01), while the unilateral group showed a 5-point relative decline (p<0.001). Conclusions Cataract negatively affects both subjective quality of life and objective performance measures. Unilateral cataract surgery improves visual functioning, but the largest gains are found in patients who undergo second-eye cataract surgery. This finding supports second-eye cataract surgery for patients with visual or functional complaints even after successful first-eye surgery.

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Section: Discussionmentioning

confidence: 99%

“…However, most studies of first and second-eye surgery have generally concluded that second-eye surgery is beneficial, at least for a subset of patients. 7,16–25 …”

Section: Introductionmentioning

confidence: 99%

Functional Improvement after One- and Two-Eye Cataract Surgery in the Salisbury Eye Evaluation

Lee¹,

Muñoz²,

West³

et al. 2013

Ophthalmology

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“…1,2 Refractive outcomes have an impact on postoperative self-assessed visual function. 3 Improved surgical results 4 together with improved biometry with partial coherence interferometry 5 and optimized formulas [6][7][8] have contributed to a gradual improvement in predictability of refractive outcomes, 1 with as many as 75% of eyes achieving a spherical equivalent (SE) within G0.50 diopter (D) of the planned refraction. 9 One limiting factor for optimum uncorrected postoperative visual acuity is preexisting corneal astigmatism, which is reported to exceed 1.00 D in approximately one third of cataract patients, with some variations between populations.…”

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confidence: 99%

Aiming for emmetropia after cataract surgery: Swedish National Cataract Register study

Behndig

Montan²,

Stenevi³

et al. 2012

Journal of Cataract and Refractive Surgery

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144

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“…[1][2][3][4][5][6][7][8][9] For vision-specific instruments, vision functioning is one of the key latent traits. Recently, Rasch analysis has been used to estimate and evaluate latent traits, producing Rasch-scaled scores in preference to raw scores from questionnaire data.…”

mentioning

confidence: 99%

“…Recently, Rasch analysis has been used to estimate and evaluate latent traits, producing Rasch-scaled scores in preference to raw scores from questionnaire data. Numerous vision-specific instruments have been rigorously validated using Rasch analysis for daily living activities dependent on vision 10,11 and for a spectrum of eye conditions, such as cataract, 8,12,13 diabetic retinopathy, 6 AMD, 4,14 and glaucoma. 7,15,16 A literature review for instruments for the assessment of vision-specific quality of life identified 22 instruments.…”

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confidence: 99%

Accounting for Standard Errors of Vision-Specific Latent Trait in Regression Models

Wong

et al. 2014

Invest. Ophthalmol. Vis. Sci.

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Study of Possible Predictors Associated with Self-Assessed Visual Function after Cataract Surgery

Cited by 47 publications

References 26 publications

Functional Improvement after One- and Two-Eye Cataract Surgery in the Salisbury Eye Evaluation

Functional Improvement after One- and Two-Eye Cataract Surgery in the Salisbury Eye Evaluation

Aiming for emmetropia after cataract surgery: Swedish National Cataract Register study

Accounting for Standard Errors of Vision-Specific Latent Trait in Regression Models

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