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Strabismus following retinal detachment repair: a comparison between scleral buckling and vitrectomy procedures.

ABSTRACT: PURPOSE: We conducted a study to investigate: (1) deviations caused by retinal detachment (RD) repair; (2) correlation between visual acuity and the number of surgeries to deviation size; and (3) differences between deviations following scleral buckling (SB) and pars plana vitrectomy (PPV). METHODS: A retrospective analysis of patients with persistent binocular diplopia following RD repair. Magnitude of manifest deviation (∣dev∣) in the primary position (PP) and position of greatest deviation (maxDev) was calculated. LogMAR acuity and number of previous vitreoretinal procedures were correlated to ∣dev∣ in both PP and maxDev. Manifest ∣dev∣ were compared between SB and PPV groups. RESULTS: Twenty-five patients were identified. The median ∣dev∣ was 7 prism diopters (PD) in PP and 17 PD in maxDev. We found no association between number of surgeries or VA with ∣dev∣ in either the PP (r=-0.18 and r=0.08) or maxDev (r=-0.26 and r=-0.05). Twelve patients underwent PPV: median ∣dev∣ in PP 6 PD and maxDev 9 PD. In the SB group: median ∣dev∣ in PP 8 PD and in maxDev 22 PD. ∣dev∣ in PP showed no significant differences between PPV and SB (U=63, P=0.41); however, ∣dev∣ in maxDev, showed that SB have significantly greater deviations (U=36.0, P=0.02). CONCLUSION: We report the largest cohort of patients with symptomatic ocular motility defects following PPV. We show no association between VA or number of procedures to strabismus magnitude. Ocular deviations in maxDev are significantly greater after SB procedures.

SUBMITTER: Kasbekar SA

PROVIDER: S-EPMC3178247 | biostudies-other | 2011 Sep

REPOSITORIES: biostudies-other

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Project description:Purpose:To investigate the characteristics of silicone oil (SO) emulsification after vitrectomy for rhegmatogenous retinal detachment and their possible correlations with clinical factors. Methods:The first 2?mL of washing out fluid after SO removal was collected, and used for the measurement of the size and number of SO droplets using a Multisizer® 3 Coulter counter (Beckman Coulter, USA). The correlations between SO droplets and clinical factors were analyzed. Results:A total of 38 patients (23 males, 15 females) who underwent primary PPV with SO injection for RRD and whose retina stayed attached for ?3 months after SO removal were included in the study. The average number of oil droplets was 1.96?×?106?±?3.95?×?106/mL (range 0.17?×?106 to 21.71?×?106/ml), and 80.8% (range 64.23%-99.07%) of the droplets were 1-2??m in diameter. The total number of emulsified SO droplets was not correlated with any clinical factor (all P > 0.05). When the emulsified SO droplets were divided into groups by their diameter, multiple linear regression revealed that age was negatively correlated with the numbers of 5-7-?m in diameter. The total number of emulsified SO droplets was not correlated with any clinical factor (all ?m in diameter. The total number of emulsified SO droplets was not correlated with any clinical factor (all P > 0.05). When the emulsified SO droplets were divided into groups by their diameter, multiple linear regression revealed that age was negatively correlated with the numbers of 5-7-?m in diameter. The total number of emulsified SO droplets was not correlated with any clinical factor (all ?m in diameter. The total number of emulsified SO droplets was not correlated with any clinical factor (all P > 0.05). When the emulsified SO droplets were divided into groups by their diameter, multiple linear regression revealed that age was negatively correlated with the numbers of 5-7. Conclusion:Using a Multisizer® Coulter counter, we successfully determined the number and size of SO droplets after emulsification. We found that the number of 5-12-?m-diameter droplets was higher in younger-age patients and was higher in patients using antiglaucoma eyedrops.?m in diameter. The total number of emulsified SO droplets was not correlated with any clinical factor (all.

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Strabismus following retinal detachment repair: a comparison between scleral buckling and vitrectomy procedures.

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