Tadeusz Kecik

The significance of salivary gland ultrasonography in the diagnosis of dry eye syndrome.

The differential diagnosis between Sjogren’s (SDE) and non-Sjogren’s dry eye (NSDE) is critical to the prevention of severe complications in Sjogren’s syndrome, and to favorable prognoses in both forms of the disease. The purpose of this study is to determine the value of salivary gland ultrasonography (US) to ophthalmologists as a tool in the diagnosis of both SDE and NSDE.

Ophthalmological LH-58 set with the holmium laser

The paper presents a description of a construction of the ophthalmological set LH-58 with the holmium laser. Results of preliminary medical tests of eye lens curvature correction carried out by means of this set are given.

Usage possibilities of laser stimulation in ophthalmology

The laser stimulation is used in ophthalmology as a supplement toother way of therapy. Nowadays, the following types of procedures are being performed: eyeball anterior segment stimulation, lacrimal gland stimulation, eyeball posterior pole stimulation, trigeminal nerve opening stimulation. Laser stimulation can be used as an independent procedure or together with pharmacological treatment.

Image digital analysis method for investigation of change dynamics in coagulation spots generated by the frequency-doubled Nd:YAG laser

The iris of a gray rabbit has been used for the studies on the process of coagulation with the frequency-doubled Nd:YAG laser. Coagulation spots image have been processed using programs for the image analysis. In places of exposure gas bubble cavitation has been identified. It has been stated in the research that the process of coagulation spots formation is longer than it has been estimated.

Holmium laser use in the treatment of selected dry eye syndrome complications

The authors present initial results of treatment selected complications of dry eye syndrome with holmium laser. The lacrimal puncta obliteration and coagulation of the corneal ulcer surface were done.

Ophthalmological coagulator LKP-1500 with a semiconductor laser

The ophthalmological coagulator LKP-1500 with the semiconductor laser is presented. The LKP-1500 set has been compared with other such type sets. The elaborated device has been tested under clinical conditions.

Device with krypton lasers for diagnostics and therapy of tumors

In this paper a unit with two krypton lasers is described. This apparatus is designed to be used in photodynamic diagnosis and therapy of tumors in ophthalmology. Some technical data are given.

Experimental research of the possible use of photodynamic methods in the treatment of melanoma of the iris

In our experimental work we present the use of hematoporphyrin derivative photodynamic therapy (HpD-PDT) in the treatment of melanoma. Eighteen eyes of rabbits were incubated intracamerally with amelanotic Greene melanoma tissue. The technique involves the administration of HpD and photoactivation of tumor with red light (630 nm) to achieve selective destruction of cancer cells. After photoradiation the tumor showed blanching and shrinkage, we could also observe the tumor vasculature damaged. Successfully treated tumors had large areas of necrosis with severely damaged blood vessels in histopathological examination. Results indicate that HpD-PDT is a very promising modern modality offering a new method of melanoma treatment.

Ophthalmic endocoagulator with argon laser

An endocoagulator with an ion argon laser designed and manufactured at Warsaw Technical University is described in this paper. Technical data and a short description of this unit are given.

Photodynamic method of diagnosis and treatment of intraocular melanoma

Malignant melanoma is the most prevalent and the most dangerous primary intraocular tumor. The most common treatment until recently was enucleation. In our experimental work we would like to present the use of hematoporphyrin derivative photodynamic therapy (HpD- PDT) in diagnosis and treatment of cancer. Eighteen eyes of rabbits were incubated intracamerally with amelanotic Greene melanoma tissue. The technique involves the administration of HpD and photoactivation of the tumor with violet light (406 nm) for diagnostic purposes and with red light (630 nm) to achieve selective destruction of cancer cells. After photoradiation the tumor showed blanching and shrinkage, we could also observe the tumor vasculature damage. Successfully treated tumors had large areas of necrosis with severely damaged blood vessels in histopathological examination. Results indicate that HpD- PDT is a very promising modern modality offering new diagnostic and treatment methods for melanoma.