results the electrophysiology laboratory staff received higher doses of ionizing radiation (17.2 ± 11.9 msv; p < 0.001). there was a significant positive correlation between the years of working experience and effective dose in the lens (p < 0.001). in general, our findings showed that the incidence of lens opacity was 79% (95% ci, 69.9-88.1) in participants with exposure (the case group) and o...

BACKGROUND Previous studies have found an association between cataract or lens opacity and increased risk of mortality. Further work on determining explanatory factors for this association is needed. OBJECTIVES To determine, in a population-based cohort of older persons, the 2-year risk of death associated with different types of lens opacities; whether an association of mortality and lens op...

A clinical trial was undertaken to determine whether a commercially available lens opacity meter (LM701), which measures backward scattered light from the lens, provides reliable clinical information about the effect of lens opacities on visual acuity. At the 0.001 level of probability we found a significant relationship between the lens opacity meter reading and both the Snellen acuity and pat...

PURPOSE To examine the response of the lens to varying sizes of perforating injury. METHODS Four-week-old mice were used. Injuries consisted of pricking in the central region of the lens by transcorneal insertion of needles of two different sizes. After injury, the eyeballs were removed sequentially at various intervals up to 30 days and examined morphologically. RESULTS The mouse lens show...

This work studies ethnic and geographical differences in the age-related straylight increase by means of a stochastic model and unpublished lens opacity data of 559 residents of Villa Maria (Argentina), as well as data of 912 Indonesian subjects published previously by Husain et al. For both cohorts the prevalence of each type and grade of lens opacity was determined as a function of age, from ...

BACKGROUND Cases of cataract surgery without penetrating keratoplasty in patients with Peters' anomaly are very rare. We report a case of Peters' anomaly type 2 with tilted lens due to synechia between the lens and iris that was treated with cataract surgery without penetrating keratoplasty. CASE PRESENTATION A 16-year-old girl had Peters' anomaly in both eyes. Corneal opacity was severe in t...

PURPOSE To study the relationship between subjective lens color as observed with slit lamp biomicroscopy and spectral transmittance of the lens. To propose a model for this relationship to derive quantitative information on lens pigmentation from slit lamp observation. METHODS Twenty-nine normal lenses, from donors aged 14 to 86 years, were used. The fraction of light transmitted from a narro...

Reversible corneal exposure cataracts have been observed in many rodents. The postulated mechanism has been one of transcorneal evaporation of water increasing the concentration of the aqueous and osmotically affecting the lens. In this experiment, changes in the colligative properties of hamster aqueous were measured as related to corneal exposure and the development of lens opacity. A rise of...