Explain presbyopia and astigmatism
Explain presbyopia and astigmatism?
Expert
Presbyopia refers to the visual impairment where there occurs loss of cililary muscle strength hence, decreasing the capability of crystalline lens in order to adjust the images of nearby objects onto the retina. In presbyopia, the near point of the vision becomes more distant. The disease normally takes place in the old people. Astigmatism is caused due to irregular shape of refractive structures, specially the cornea. In astigmatism, a single object-point can generate more than one image onto the retina and therefore the vision becomes distorted.
What do you mean by immunoglobulins?
What is meant by the diabetes mellitus?
What are the three major classes into which mammals are classified?
State differences between type I diabetes mellitus and type II diabetes mellitus?
What do you mean by the term bunds? Also briefly mention the types.
SAP is the name of the corporation founded in the year 1972 under the German name “Systems, Applications, and Products in Data Processing” is the leading ERP (that is, Enterprise Resource Planning) software package.
How can an organism which once underwent contact with an antigen be immunized against the future infections by similar agent?
Management: It is the organizational process which comprises strategic planning, setting; objectives, managing resources, organizing the human and financial assets required to attain objectives, and measuring outcomes. Management too comprises recordi
Write about the various flight adaptations exhibited by the birds?
How artificial and natural pearls created?
18,76,764
1950678 Asked
3,689
Active Tutors
1460090
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!