THE INTRAOCULAR STRAYLIGHT FUNCTION IN SOME HEREDITARY CORNEAL DYSTROPHIES

The direct compensation method allows for an accurate determination of intraocular light scattering between 3.5 and 25 degrees of scattering angle and is suitable for untrained subjects. The method was used to study light scattering in four forms of hereditary corneal dystrophies . Light scattering is the basis of glare complaints and was compared w ith visual acuity loss. The findings corresponded to the complaint pat terns: in central crystalline dystrophy light scattering can be much i ncreased with relatively well preserved visual acuity. In posterior po lymorphous dystrophy the reverse is true. In macular dystrophy (Groeno uw II)and lattice dystrophy the situation is more or less intermediate between these two extremes.