Symptomic and asymptomic infections of Demodex spp. in eye lashes of patients of different age groups. Demodex folliculorum and Demodex brevis were looked for on eyelashes sampled from 481 people, aged 3 through 96. The persons studied were divided into 9 age groups. Magnitude of the infection symptoms was assessed based on macroscopic changes of eye-lid edges and on interviews with patients. An increase of the prevalence of infection and intensification of the symptoms were observed to coincide with the age increase of the persons studied. No significant differences were demonstrated between the infection frequencies of women and men. Symptoms of ocular demodecosis were more frequent only in women of group III (aged 21-30) and group V (41-50) (p<0.05).
Diseases of the accessory organs of the eye remain a grave problem in veterinary ophthalmology. The accessory organs of the eye protect the eyeball against external factors, as well as enabling it proper rotation and vision. Pathological processes more and more frequently disturb ophthalmologic practice of veterinary doctors. The paper was designed to review the anatomy of the accessory organs of the eye: the lids, the conjunctiva, the third eyelid, the superficial and deep glands of the third eyelid, the lacrimal apparatus and the orbital fasciae in domestic animals. Such a compilation may help to conduct surgery in veterinary ophthalmology.