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The Clinical Study of Laser Treating Retinal Vein Occlusion

Author: LiangLiNa
Tutor: ZhangLiZhi
School: Yanbian University
Course: Ophthalmology
Keywords: Retinal vein occlusion Laser photocoagulation Vision
CLC: R774.1
Type: Master's thesis
Year: 2010
Downloads: 24
Quote: 0
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Abstract


Objective: To evaluate argon laser photocoagulation treatment of different periods of retinal vein occlusion (retinal vein occlusion, RVO) the clinical efficacy; explore clinical time and spot settings argon laser photocoagulation treatment of retinal vein occlusion. Methods: A retrospective analysis of our hospital from February 2008 - July 2009 by Japan Kowa fundus fluorescein angiography (fundus fluorescein angiography FFA) confirmed RVO 111 patients (111), of which 40 cases of patients with CRVO (40 ) HCRVO 13 patients (13), patients with BRVO 58 cases (58). According to the observation of the FFA, capillary non-perfusion area will appear as a preventive photocoagulation group but not yet 58 angiogenesis, neovascularization 53 as a therapeutic photocoagulation group. Preventive the photocoagulation group of 58 eyes of CRVO 21, BRVO 30, HCRVO 7. Therapeutic photocoagulation group of 53 eyes of 19 CRVO, BRVO 28 HCRVO, 6; retinal laser photocoagulation of the two groups of patients after 3 and 6 months after the review, visual acuity, the most Best corrected visual acuity, slit lamp, fundus and FFA examination. If the FFA new or photocoagulation is less than the perfusion area and neovascularization did not subside to supplement photocoagulation. The two groups are 6 months after the review results of the evaluation criteria. All patient data were confirmed by the SPSS statistical software for statistical analysis. Results: (1) preventive the photocoagulation group of 58 vision condensate after 51 does not appear neovascularization, accounting for 87.9%, 7 neovascularization, accounting for 12.1%, of which a neovascular glaucoma; therapeutic photocoagulation group of 53 eyes condensate after the last follow-up, 48 new blood vessels shrink, accounting for 90.6%; the five therapy, 9.4%, of which a neovascular glaucoma; no significant difference in efficacy between the two groups. (2) two sets of CRVO patients photocoagulation before and after treatment are poor vision, no significant difference; visual prognosis of HCRVO patients compared with CRVO slightly better; vision after laser photocoagulation in BRVO patients with good prognosis. Patients after photocoagulation vision is closely related to the level and type of vein occlusion. (3) of prophylactic photocoagulation group II level spot level III spot treatment no significant difference; therapeutic photocoagulation group level III spot a spot diameter of the reaction interval density than class II spot reaction 1.5 spot diameter interval density; Conclusion : (1) argon laser photocoagulation have a significant effect in the suppression and reduce intraocular neovascularization due to RVO; when neovascular appears photocoagulation treatment is a better time of the RVO patients with laser treatment; argon laser photocoagulation can reduce newborn the incidence of vascular or neovascular glaucoma, but does not completely prevent the emergence of neovascularization or neovascular glaucoma. (2) photocoagulation can be improved to varying degrees depending on the function, but the degree of visual acuity improved closely related to the type of retinal vein occlusion. (3) spot set: RVO patients neovascularization should be given to the level III spot; does not appear neovascularization RVO patients should be given a grade II spot.

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CLC: > Medicine, health > Ophthalmology > Retina and optic nerve diseases > Retinal disease
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