Aim: The purpose of the present study was to evaluate the degree of inflammation and to monitor the dynamics of the blood-aqueous barrier disruption in selected cases of uveitis using laser tyndalometry.
Material and method: Measurements with the use of laser tyndalometer (Kowa FM-500) were performed in 72 patients (90 eyes) with various types of uveitis. They were divided into four groups: anterior uveitis (28 eyes), intermediate uveitis (pars planitis) (28 eyes), posterior uveitis (26 eyes) and panuveitis (8 eyes). Aqueous flare values were expressed as photon counts per millisecond.
Results: Tyndalometric mean values in control eyes were 4.8 +/- 1.0 ph/msec. Mean initial flare was pronounced in multifocal choroiditis and panuveitis--196.0 ph/msec, HLA-B27 positive acute anterior uveitis--145.4 ph/msec, and in acute herpes zoster anterior uveitis--52.4 ph/msec. It was mild to moderate in Fuchs uveitis syndrome--7.8 ph/msec, pars planitis--15.7 ph/msec, posterior uveitis in toxoplasmosis--6.8 ph/msec and toxocariasis--17.5 ph/msec. The potential of laser flare-meter for precise follow-up and adjustment of therapy was demonstrated in selected cases.
Conclusions: Laser tyndalometry has been proved to be a useful tool for the objective and quantitative evaluation of anterior chamber flare in uveitis and for monitoring the effectiveness of the treatment, thus improving therapeutic efficacy of uveitis.