Cataract and surgery for cataract.
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Cataract↗
Biomedical subjects
Abhay Vasavada
Publications and source records attributed to Abhay Vasavada.
Causative and preventive action of calcium in cataracto-genesis.
Calcium and Ca-dependent enzymes play specific role in the development of human cataracts. Entry of Ca2+ into the lens epithelial cells (LEC) is highly regulated by quantum of receptors. The Ca2+ level controls homeostasis and growth of entire lens. Intracellular overload of Ca2+ in the LEC trigger a series of events such as activation of Ca-dependent enzymes, irreversible breakdown of important structural proteins and cell death. Proper maintenance of Ca2+ levels by regulating activity of Ca-pumps and Ca-channels and inhibition of Ca-dependent enzymes can help in prevention of cataract. Induction of cell death in the LEC by increase in the intracellular Ca2+ may be utilized for the prevention of posterior capsular opacification.
Animals↗
Pinteraction of sex steroid hormones with the eye.
Many epidemiologic and laboratory studies in the recent past suggested that the physiology of the eye may be affected by alterations in sex steroid homeostasis due to ageing and pathogenesis. This hypothesis is again strengthened by the presence of specific receptors for steroid hormones in various ocular tissues. However their involvement in pathological process is not yet clearly established. This review deals with a viewpoint on the possible beneficial and detrimental effects of sex steroids on ocular physiopathology. Since sex steroids are different in males and females, an interesting concept of sexual dimorphism in human eye also emerges from this information.
Choroid↗