Spontaneous vitreous haemorrhage treated by pars plana vitrectomy.

Objective To investigate visual outcomes for non_diabetic and non_traumatic vitreous haemorrhage treated with a pars plana vitrectomy. Methods All the cases(46) of non_diabetic and non_traumatic vitreous haemorrhage treated with a pars plana vitrectomy were studied.A comparative analysis was made of visual acuities and complications postoperatively. Results Postoperatively,visual acuity improved in 32 eyes who underwent vitrectomy in 1 month.Visual acuity improved in 2 eyes,remained unchanged in 8 eyes and visual acuity worse in 3 eyes who underwent vitrectomy over 1 month.The complications included haemorrhage,retinal tear in the operation and increased intraocular pressure postoperatively.Retinal tear and retinal detachment happened in patients who underwent vitrectomy over 1 month. Conclusion The pars plana vitrectomy is an effective treatment for nondiabetic spontaneous vitreous hemorrhage and the complications are less.With respect to retinal tears,the vitrectomy should be done at once.