J Korean Ophthalmol Soc.  2014 Aug;55(8):1150-1154.

Comparison of the Time Required for Panretinal Photocoagulation and Associated Pain between Navilas(R) and Conventional Laser Therapy in Diabetic Retinopathy

• Kim MS
• Lee SW
• Kim JS

Abstract

PURPOSE
To compare the pain scale and time necessary for panretinal photocoagulation (PRP) between Navilas(R) (OD-OS, Teltow, Germany) and conventional laser in diabetic retinopathy.
METHODS
Fifteen patients who required PRP for diabetic retinopathy were enrolled in the present study. PRP was performed using Navilas(R) (5 x 5 array patterned system) in the superior, nasal and inferior areas, and using conventional laser at the temporal area 1 week later. Total time of laser application and number of laser shots were counted for calculating required time per 100 spots of each laser system. Immediately after the laser photocoagulation, patients were asked to quantify their pain on a visual analog pain scale (0 = no pain; 10 = worst pain).
RESULTS
PRP using Navilas(R) required shorter time per 100 laser spots (27.7 sec vs. 102.0 sec, p < 0.001) and subjects had lower treatment-related pain than with the conventional laser system (3.3 vs. 6.9, p < 0.001).
CONCLUSIONS
PRP using Navilas(R) can be considered as an efficient method for improving patient and operator's comfort with faster laser application and lower treatment-related pain.

Keyword

Diabetic retinopathy; Navilas; Panretinal photocoagulation

MeSH Terms

Diabetic Retinopathy*
Humans
Laser Therapy*
Light Coagulation*
Pain Measurement

Figure

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  Figure 1. Photograph of the monitor of the Navilas®. Blue circles show treated spots. Green small circles show the aimed spots (5 × 5 array pattern) (Image courtesy of WWW.OD-OS.com).

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  Figure 2. Color fundus photograph after photocoagulation. The upper half shows burn scars with Navilas®, the lower half shows burn scars with conventional laser.

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  Figure 3. Visual analog pain scale.

Reference

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