Abstract
Purpose :
To compare the pain and the duration of a panretinal photocoagulation (PRP) session using a conventional multispot laser (Suprascan, 577nm, Quantel Medical) and using a navigated laser. (Navilas 577s, 577nm, OD-OS)
Methods :
Twenty eyes of ten naives patients requiring bilateral PRP for diabetic retinopathy were included. The treatment of one eye was performed using a conventional multispot laser and the other eye was treated with the Navilas laser with the same parameters (same power, exposure time, number, size and spacing of the spots). For each eye, the duration of the session and the pain, measured using respectively a chronometer and a visual analogic scale (VAS), were compared.
Results :
A mean of 1289 (1000-1500) spots with a mean power of 352 mW (300-450mW) and an exposure time of 27 msec (20-30msec) were delivered. The PRP session with the Navilas laser (mean time of 5minutes 32 secondes) was faster than with the conventional multispot laser (6 minutes 36 seconds) (P=0,06). The pain caused by the Navilas laser was significantly reduced (VAS : 3,2 +/- 1,2) compared to the treatment with the conventional laser (VAS : 8,3 +/- 1,51) (p<0,05)
Conclusions :
The PRP sessions using the Navilas laser were faster and less painful than with a conventionnal multispot laser.
This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.