Optic coherence tomography measurement of choroidal and retinal thicknesses after uncomplicated YAG laser capsulotomy

Abstract

Approved by the following research ethics committee: Erciyes University Ethics Committee 2014/356. ABSTRACTPurpose: Optic coherence tomography (OCT) evaluation of the choroid, retina, and retinal nerve fiber layer after uncomplicated yttrium-aluminum-garnet (YAG) laser capsulotomy. Methods: OCT analysis of retinal and choroidal structures was performed in 28 eyes of 28 patients following routine examinations before and 24 h, 72 h, 2 weeks, 4 weeks, and 12 weeks after YAG laser capsulotomy. Data were analyzed using the SPSS software. 275,85 ± 74,78 m; após YAG foi 278,46 ± 83,46 µm, 283,39 ± 82,84 µm, 280,00 ± 77,16 µm, 278,37 ± 76,95 µm, e 278,67 ± 76,20 µm, respectivamente. A espessura macular central foi 272,14 ± 25,76 mm antes YAG; e 266,53 ± 26,47 µm, 269,14 ± 27,20 µm, 272,17 ± 26,97 µm, 270,91 ± 26,79 µm, e 273 ± 26,63 µm, respectivamente. Espessura média da camada de fibras nervosas da retina antes do YAG foi 99,89 ± 7,61 mm; e 98,50 ± 8,62 µm, 98,14 ± 8,69 µm, 99,60 ± 8,39 µm, de 99,60 ± 8,39 µm, 99,60 ± 8,35

The Effect of Nd:YAG Laser Posterior Capsulotomy on Macular Pigment Optical Density in Cases with Posterior Capsule Opacification

“…Those two studies and the previous studies examining the relationship between cataract surgery and choroid structure have suggested that postoperative inflammation may be responsible for increased choroidal thickness. [8][9][10][11] These results support the fact that inflammatory processes may assume an essential role in the change in choroidal thickness after Nd: YAG laser. As subfoveal and nasal areas are closer to the optical disc compared to the temporal region, the choroidal thickness change there requires more detailed studies concerning mechanisms.…”

“…There were temporary or nonsignificant changes in the choroidal thicknesses after laser procedure in the aforementioned studies. 8,9 While temporary increases have been seen in the subfoveal and temporal areas also in our study; a significant increase has been observed only in the nasal choroidal thickness. The reason for this situation might be the lower energy content of the laser procedure performed in the previous study or the fluctuation of intraocular pressure induced by higher energy in our study.…”

“…9 In another study, Yuvaci et al have reported a nonsignificant increase in subfoveal choroidal thickness after Nd: YAG laser. 8 In our study, significant increases were observed in the only nasal choroidal region, whereas temporary changes were observed in the subfoveal and temporal regions. There were temporary or nonsignificant changes in the choroidal thicknesses after laser procedure in the aforementioned studies.…”

“…The study about the comparison of Nd: YAG laser posterior capsulotomy size and choroidal thickness, has claimed that Nd: YAG capsulotomy causes the thickening of choroid. 8 One of the structures situated in the retina is macular pigment. The macular pigment has a critical role in absorbing high-energy visible (HEV) blue lights that have the potential of damaging to the retina.…”

Retinal changes after laser interventions on anterior segment of the eyeball

“…Несколько групп авторов [38,39,[41][42][43] с помощью ОКТ исследовали состояние различных слоев сетчатки, хориоидеи, толщину сетчатки в макулятной области. Результаты этих исследований хорошо согласовались друг с другом и показывали тенденцию к утолщению сетчатки и хориоидеи, а также истончение слоя ретинальных нервных волокон.…”