Pattern Scanning Laser Pan-retinal Photocoagulation in Proliferative Diabetic Retinopathy

United Christian Hospital

Status: Completed

Conditions: Lasers; Treatment Outcome; Diabetic Retinopathy

Treatments: Device: Pan-retinal photocoagulation using pattern scanning laser

Study type: Interventional

Funder types: Other

Identifiers

NCT02816073

12-0079

Details and patient eligibility

About

A randomized study to assess the safety and efficacy of single-session pan-retinal photocoagulation (PRP) using Pattern Scan Laser (PASCAL) in proliferative diabetic retinopathy (PDR) - 1,700 shots vs 2,500 shots

Enrollment: 17 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• All treatment-naïve patients with proliferative diabetic retinopathy (PDR) who attended our ophthalmic clinic from 1st December 2012 to 30th November

Exclusion criteria

• significant media opacity affecting laser uptake (e.g. corneal opacity, mature cataract, dense vitreous haemorrhage)
• any pre-existing ocular disorders resulting in visual impairment (e.g. retinal degenerations, maculopathies, primary glaucoma and other optic neuropathies)
• those who received previous retinal laser treatment, intravitreal injections or intraocular surgeries
• clinically significant macular oedema on clinical examination.

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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17 participants in 2 patient groups

1,700

Active Comparator group

Description:

Patients receive 1,700 (+/- 5%) laser shots in a single session of pan-retinal photocoagulation using pattern scanning laser

Treatment:

Device: Pan-retinal photocoagulation using pattern scanning laser

2,500

Active Comparator group

Description:

Patients receive 2,500 (+/- 5%) laser shots in a single session of pan-retinal photocoagulation using pattern scanning laser

Treatment:

Device: Pan-retinal photocoagulation using pattern scanning laser