Does a small central Nd:YAG posterior capsulotomy improve peripheral fundal visualisation for the Vitreoretinal surgeon?

Patton, Niall; Aslam, Tariq; Bennett, Harry; Dhillon, Baljean

doi:10.1186/1471-2415-4-8

Cited by 5 publications

(8 citation statements)

References 20 publications

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“…The mean pre-procedural IOP was 16.15 ± 2.71 mmHg (10-20) in Group 1, 14.86 ± 2.63 mmHg (11)(12)(13)(14)(15)(16)(17)(18)(19) in Group 2, 15.31 ± 3.59 mmHg (9-21) in Group 3, and 15.43 ± 1.94 mmHg (2-19) in Group 4. There was no statistical differences between groups (p=0.452).…”

Section: Resultsmentioning

confidence: 99%

“…There was no statistical differences between groups (p=0.452). The mean post-procedural IOP was 16.55 ± 2.48 mmHg (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) in Group 1,14.65 ± 2.56 mmHg (10)(11)(12)(13)(14)(15)(16)(17)(18) in Group 2, 15.36 ± 3.23 mmHg (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21) in Group 3, and 15.34 ± 1.96 mmHg (12)(13)(14)(15)(16)(17)(18)(19) in Group 4. There was no statistical differences between groups (p=0.125, Figure 5).…”

Section: Resultsmentioning

confidence: 99%

“…On the other hand, larger capsulotomy openings may increase risk of cystoid macular edema, vitreous prolapse, and retinal detachment (11,17) or cause posterior IOL dislocation leading to hyperopia (18) . In addition, a higher amount of energy is required that may increase the risk of retinal detachment (19) .…”

Section: Discussionmentioning

confidence: 99%

“…PCO decreases visual acuity and contrast sen sitivity leading to disability as a result of glare (9,10) . Nd:YAG laser capsulotomy has utility in the treatment of PCO; however, a number of complications of this procedure have been reported including IOL (11)(12)(13) . A number of Nd:YAG laser capsulotomy shapes and sizes may be utilized.…”

Section: Introductionmentioning

confidence: 99%

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The influence of size and shape of Nd:YAG capsulotomy on visual acuity and refraction

Çetinkaya

Cetinkaya²,

Yener

et al. 2015

Arquivos Brasileiros De Oftalmologia

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The influence of size and shape of Nd:YAG capsulotomy on visual acuity and refraction

Çetinkaya

Cetinkaya²,

Yener

et al. 2015

Arquivos Brasileiros De Oftalmologia

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“…By enrolling those awaiting YLC, we might have included a higher than average proportion of patient with clinically significant central PCO or eccentric pearls. 7,8 It might be interesting repeating the study on a group of asymptomatic patients.…”

Section: Discussionmentioning

confidence: 99%

The influence of posterior capsule opacification on scanning laser polarimetry

Vetrugno

Masselli

Greco

et al. 2006

Eye

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Purpose To evaluate the influence of posterior capsule opacification (PCO) on GDx parameters in a population of pseudophakic, non-glaucomatous patients who underwent Nd:YAG laser capsulotomy (YLC). Methods The posterior capsules were photographed with a Topcon digital camera and each image was then entered into the EPCO 2000 software and evaluated independently by three examiners. The EPCO 2000 software was used to calculate the fibrosis index (FI) and the pearl index (PI) for the central 1.5, 2.5, and 3.5 mm of the posterior capsule. Scanning laser polarimetry was performed with GDx before and after YLC. We compared the GDx readings obtained before and after the YLC using paired Student's t-test. The parameters that varied significantly after YLC were subsequently used for regression analysis. Stepwise multiple linear regression was used to analyse the impact of the change in the amount of FI and PI on change in GDx parameters after YLC. Results In total, 158 patients were enrolled (74 men, 84 women). The mean age was 69.4678.83 years (range 46-83 years). The interobserver agreement among the three experts was found to be good (repeatability coefficient R ¼ 1.51, 1.49, 1.49 for observer A vs B, A vs C, and B vs C respectively). One-sample Student's t-test show no difference between all GDx parameters before and after YLC except for Symmetry, Superior/Nasal ratio, Inferior Ratio, and Temporal-Superior-Nasal-InferiorTemporal (TSNIT). Stepwise multiple regression showed that the two variables of greatest significance for changes in Symmetry were the FI in the central 1.5 and the PI in the central 3.5 mm (P ¼ 0.02). Superior/nasal ratio was shown to be most strongly correlated to the FI in the central 1.5 mm and PI in the central 3.5 mm (Po0.001), whereas the variable of greatest significance to Inferior Ratio was PI in the central 3.5 mm (P ¼ 0.03). Finally, TSNIT was most strongly correlated to FI in the central 1.5 mm and FI in the central 2.5 mm (Po0.001). Conclusion Presence of capsular fibrosis seems to be more clinically relevant in the central zone, whereas pearls tend to be clinically significant in the central 3.5 mm area. Hence, it might be worthwhile assessing the amount of PCO in pseudophakic patients when performing scanning laser polarimetry. Investigators should ensure that the type of PCO and the size of the area analysed are documented in the notes in order to interpret GDx findings appropriately.

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Transforming scales of measurement of visual acuity at the group level

Khoshnood

Mesbah

Jeanbat

et al. 2010

Ophthalmic and Physiological Optics

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Does a small central Nd:YAG posterior capsulotomy improve peripheral fundal visualisation for the Vitreoretinal surgeon?

Abstract: Background: To evaluate the effect of Nd:YAG capsulotomy for posterior capsular opacification (PCO) on visualisation of the peripheral fundus with scleral indentation.

Cited by 5 publications

References 20 publications

The influence of size and shape of Nd:YAG capsulotomy on visual acuity and refraction

The influence of size and shape of Nd:YAG capsulotomy on visual acuity and refraction

The influence of posterior capsule opacification on scanning laser polarimetry

Transforming scales of measurement of visual acuity at the group level

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