Other vitreous opacities
Conditions
Interventions
The study population will be divided into two groups of fifteen people:
1) The first group will be submitted to Nd-YAG laser vitreolysis of vitreous opacitie. The amount of laser will depend on the in
Procedure/surgery
Sponsors
Instituto de Assistência Médica ao Servidor Público Estadual - SP
Instituto de Assistência Médica ao Servidor Público Estadual - SP
Eligibility
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: Symptomatic Weiss ring (due to posterior vitreous detachment); Symptoms for at least 6 months; Posterior vitreous detachment documented in clinical examination and ocular ultrasound (B-scan); Weiss ring located at least 3mm from the retina and 5mm from the lens, if phakic; If both eyes are symptomatic, only one will undergo the procedure
Exclusion criteria
Exclusion criteria: Patients unfit for, or refusing to, sign the ICF; Associated diseases that may compromise data analysis; Visual acuity in the other eye worse than 20/50; History of retinal detachment, uveitis, macular edema, glaucoma and aphakia in the studied eye
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| To compare objective and subjective data of symptom improvement in patients with symptomatic vitreous detachment submitted to the vitreolysis procedure with Nd: YAG laser and to compare them with those same data of patients submitted to the simulated procedure. The objective data will be evaluated by means of retinography six months after the procedure. The subjective data will be evaluated with an improvement score reported by the patient six months after the procedure. | — |
Secondary
| Measure | Time frame |
|---|---|
| Assess the safety of the procedure by reporting possible complications in the six-month period Evaluate the NEI-VFQ 25 score before and six months after the procedure Evaluate contrast sensitivity test before and six months after the procedure Evaluate intraocular pressure before and six months after the procedure | — |
Countries
Brazil
Contacts
Public ContactGustavo Ludwig
Instituto de Assistência Médica ao Servidor Público Estadual - SP
Outcome results
None listed