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The overall rates of senile cataract in general, and of its 3 main types (ie, nuclear, cortical, posterior subcapsular), rapidly increased with age; for the oldest age group (≥75 y), nuclear, cortical, and posterior subcapsular cataracts were found in 65.5%, 27.7%, and 19.7% of the study population, respectively.
Nuclear opacities were the most commonly seen lens change.
In all probability, its pathogenesis is multifactorial involving complex interactions between various physiologic processes modulated by environmental, genetic, nutritional, and systemic factors.
As the lens ages, its weight and thickness increases while its accommodative power decreases.
Ocular imaging studies such as ultrasonography, computed tomography (CT) scanning, or magnetic resonance imaging (MRI) are requested when a significant posterior pole pathology is suspected and an adequate view of the back of the eye is obscured by a dense cataract.
Senile cataract is a vision-impairing disease characterized by gradual, progressive thickening of the lens.
It is the leading cause of blindness in the world today.
This is unfortunate, considering that the visual morbidity brought about by age-related cataract is reversible.
Nuclear cataracts result from excessive nuclear sclerosis and yellowing, with consequent formation of a central lenticular opacity.
The resulting protein changes cause abrupt fluctuations in the refractive index of the lens, scatter light rays, and reduce transparency.
Other areas being investigated include the role of nutrition in cataract development, particularly the involvement of glucose and trace minerals and vitamins.
As such, early detection, close monitoring, and timely surgical intervention must be observed in the management of senile cataracts.
Even greater challenges abound in economically disadvantaged and geographically isolated regions where limited healthcare access precludes early intervention.
Senile cataract is an age-related, vision-impairing disease characterized by gradual progressive thickening of the lens of the eye.