Klinika oczna
-
Ischemic optic neuropathy is a common cause of visual loss in the older population. This disease is classified into anterior and posterior type according to the location the lesions. The anterior type is due to transient nonperfusion or hypoperfusion of the ciliary circulation in the optic nerve head. ⋯ Posterior ischemic optic neuropathy (PION) is a rare condition and diagnosis of it usually is made only after other causes of a retrobulbar optic neuropathy have been excluded. There are three distinct subtype of PION: perioperative, arteritic and nonarteritic. They are characterized by acute visual loss, variable visual field defects, relative afferent pupillary defect and normal optic disc.
-
Ectopia lentis in children continues to be a diagnostic and therapeutic challenge for ophthalmologists. It can occur in isolation, in association with other ocular disorders or as part of systemic disorder. ⋯ The authors describe ocular findings and clinical symptoms diseases with ectopia lentis. Differential diagnostic and treatment methods are discussed.
-
Anterior ischemic optic neuropathy (AION) is one of the most common causes of acute loss vision in the middle-aged and elderly persons. It occurs due to hypoperfusion in the short posterior ciliary arteries supplying the optic nerve head. The aim of our study was evaluation of the usefulness of colour Doppler ultrasonography in diagnostics of AION. ⋯ The Color Doppler findings in the ciliary arteries do not reflect the ischemic changes in patients with AION. It is probably due to anatomical limitation of this method in evaluation of the blood flow in posterior ciliary arteries supplying the optic nerve head. Abnormal blood flow parameters in the central retinal artery are secondary changes due to optic disc oedema.
-
Biography Historical Article
[Did Leon Wyczókowski suffer from solar maculopathy?].
Noted Polish painter, Leon Wyczółkowski, during his long-standing in Ukraine used to paint pictures gazing directly at the sun in order to intensify visual sensations. Damage to the eyes caused by sunlight induced him to become a patient of a famous ophthalmologist in Kiev. Past disease led to blue color vision impairment just like it happens to people who previously suffered from solar maculopathy. We suppose, it could gradually force the artist to resign from color painting and to take up drawing.
-
Historical Article
[Ophthalmology in Byzantium between the 4th and the 7th century].
The article presents the state of development of medicine and ophthalmology in Byzantium in the period between the 4th and the 7th century. It discusses the life and work of Oribasius, Alexander of Tralles, Aëtius from Amida and Paullus from Aegina. ⋯ Paullus from Aegina was an exception in this respect as he provided a detailed description of couching of cataractous lens (e.g. hypochyma). His description is more detailed and precise than the one provided 600 years earllier by Celsus.