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Biomedical subjects

L Scullica

Publications and source records attributed to L Scullica.

At least 37 records · Page 2Linked to original sources
PubMed1996

Psychology of computer use: XXXVI. Visual discomfort and different types of work at videodisplay terminals.

The relationship between visual discomfort (or asthenopia) and different types of work using display units for 10,626 videodisplay terminal operators of the Italian Telecommunication Company was studied. Visual discomfort was evaluated as related to data entry, data checking, word processing, dialogue, enquiry, and various services. Chi-squared indicated that visual discomfort was not significantly related to any particular type of work for subjects with similar amounts of weekly time using videodisplay units. These findings are consistent with earlier results indicating that the main factor determining visual fatigue in VDT operators is the amount of time spent on the display units.

Adult↗
PubMed1995

Protective filters in the prevention of asthenopia at a video display terminal.

In this work 25,064 employees were studied with the aim of investigating whether the video display terminal (VDT) equipped with filters reduces the incidence of asthenopia with reference to weekly time spent at a VDT and duration of work at a VDT. Analysis showed that the filters themselves do not reduce the occurrence of asthenopia consequent to various factors (refractive defects, time spent at a VDT, and monitors' characteristics).

Adult↗
PubMed1993

Nedocromil sodium and astemizole, alone or combined, in the treatment of seasonal allergic conjunctivitis. A multicentre double blind clinical trial.

Two hundred and seven patients with active symptoms of allergic conjunctivitis were studied in a four-week multicentre double blind, double dummy, clinical trial comparing efficacy and safety of nedocromil sodium eye drops with oral astemizole, placebo, and the combined active treatments. Clinical signs were evaluated by clinicians after 1, 2 and 4 weeks, while symptoms were recorded by patients on daily diary cards. Overall opinions were recorded at the end of treatment. Nedocromil sodium eye drops and astemizole, alone or combined, significantly reduced ocular symptoms when compared to placebo (diary card total symptom score and patients' opinion). In the clinicians' opinion nedocromil sodium alone or combined (but not astemizole alone) significantly decreased ocular symptoms when compared to placebo. All treatments were safe and well tolerated, drowsiness being the most frequent side effect observed in patients treated with astemizole. These results indicate the effectiveness of nedocromil sodium eye drops in the treatment of seasonal allergic conjunctivitis.

Adolescent↗
PubMed1992

Human lens transparence in high-myopic subjects.

The possibility of a relation between high myopia and lens opacity was studied. For this research, the Lens Opacity Meter 701 was used. The lens opacity values measured in 91 high-myopic eyes were compared with those measured in a control group of 106 emmetropic eyes. This comparison showed that myopic had always higher lens opacity values than emmetropic ones, and this result was statistically significant after the age of 20.

Adolescent↗
PubMed1990

[Asthenopia and monitor characteristics].

An epidemiological survey on 30,000VDT operators has been carried out to evaluate the relationship between asthenopia and monitor characteristics. A VDU operator has been classified as asthenopeic if he complained about at least two of the following ten symptoms: headache, tearing, eye smarting, blurred vision, double vision, ocular itching, photophobia, blinking, nausea, eye heaviness. Visual discomfort has been related to 1) the presence of flicker; the possibility to regulate, 2) brightness, 3) height; and 4) inclination of monitor. Asthenopia has resulted statistically correlated to the presence of flicker and to the impossibility of regulating height and inclination of monitor for both sexes. The possibility to regulate monitor brightness has not determined a reduction of visual discomfort either in men or in women.

Adult↗
PubMed1989

[Cofactorial glaucoma--causes].

The various types of glaucoma may be classified more accurately by studying the structure and physiology of the trabecular meshwork. Seen in this light, the development of glaucoma is linked to "extrinsic" and "intrinsic" factors. The intrinsic factors represent the predisposition to glaucoma; the secondary factors intervene in a secondary phase, creating a resistance to aqueous humor outflow. In so-called primary glaucoma the predisposition plays a decisive role, while the extrinsic factors are not so important. In cofactorial glaucoma the predisposition is only of slight significance, while the extrinsic factors are extremely important. In true secondary glaucoma predisposition plays a minimal role, while the extrinsic factors are all the more important. In correlated glaucomas the predisposition may be extremely relevant, but the extrinsic factors which represent the key causes are still unknown. Several types of glaucoma are described as examples.

Glaucoma↗
PubMed1981

[The late development of striae vitreae of keratoconus (author's transl)].

A young patient with corneal striae vitreae in the left eye, caused by obstetrical trauma was followed up for several years by the authors and treated for amblyopia due to sight astigmatism. When the patient was eight years old a change in the shape of the cornea was observed some months after a recession of the medial rectus and typical features of keratoconus appeared. The authors discussed the pathogenesis of the so-called traumatic keratoconus and point out that late development of striae vitreae to keratoconus is by no means unlikely, and should be taken into consideration for the prognosis and in forensic medicine considered.

Birth Injuries↗
PubMed1977

"Minor" application of soft contact lenses.

Some of the minor applications of soft contact lenses are believed to be more important than was hitherto thought. Soft contact lenses may be used to potentiate the therapeutic action of drugs, for the pleoptic treatment of ambylopic patients, for determining the visual field in aphakia and high myopia, and for the treatment of corneal wounds and descemetocoele.

Amblyopia↗
PubMed1977

[Clinical and therapeutic aspects of haemorrhagic glaucoma (author's transl)].

Haemorrhagic glaucoma is a clinical syndrome. It is in fact the terminal stage of many very different ocular conditions. During the evolution towards the hypertensive haemorrhagic stage two conditions are essential: venous stasis and neoformation of capillary vessels. These factors have different incidence, but they are always present and affect each other. On the base of the pathogenesis the therapy of haemorrhagic glaucoma is more effective the sooner it is applied. When the syndrome is clear-cut the therapeutic possibilities are very poor. For these cases the authors suggest the operation of diathermotrabeculectomy whose surgical procedure is detailed.

Adult↗