150 patients suffering from primary hypercholesterolemia were divided
into three different groups receiving (1) lovastatin, (2) simvastatin,
or (3) fenofibrate as controls. The aim of the study was to detect po
ssible drug-induced ocular side effects, especially in the lens. The s
tudy period was 2 years. Ophthalmological examination and Scheimpflug
photography were performed at the beginning and every 6 months. Increa
ses or decreases in the visual acuity were distributed very similarly
in the three groups. Definite evidence of side effects was not found,
nor was there evidence of deleterious effects on refraction. The intra
ocular pressure revealed intraindividual fluctuations without clinical
significance. Many changes were observed in the lens, all were minima
l, including those of the extreme lens periphery which had no effect o
n visual acuity. The present study shows the great value of Scheimpflu
g photography with densitometric image analyses because of its objecti
vity when compared with other methods. Our observations provide good e
vidence that lovastatin and simvastatin have no undesirable toxic effe
cts on the lens and other ocular tissues, compared with fenofibrate.