Hypermetropia and myopia
Optically explain, the visual deficiencies known as hypermetropia and myopia?
Expert
Myopia refers to the visual condition where the images are formed before the retina. Hypermetropia refers to the visual condition where the point of image formation is beyond the retina. Myopia is caused with an increase in the distance between retina and crystalline lens, majorly, caused due to slight flattening of eyeball. In hypermetropia, the retina appears to be too close to the crystalline lens because of slight shortening of eyeball. In myopia, the near and far point of the vision come closer (the refractivity of crystalline lens which corresponds to maximum distension capacity of ciliary muscles is not sufficient in order to provide the visual accommodation). In hypermetropia, the ciliary muscles are not able to contract more in order to compensate the inadequate position of the retina, that is, near point becomes more distant.
In metagenesis of Obelia and Aurelia what is the form which produces gametes? What is the form which replicates asexually?
Briefly illustrate the term Equity Theory?
Describe histological nature of the glands and their formation?
What is meant by the gastrulation? How during gastrulation first two germ layers are formed? Specify these germ layers?
How is the sound vibration captured by tympanum transmitted through ossicular chain of middle ear?
Is epithelium vascularized? How do oxygen and nutrients reach the epithelium? Why is this characteristic an important evolutionary acquisition?
In the chemical terms how is neuronal repolarization attained?
How do biodiversity, total number of living beings and biomass respectively differ throughout the ecological succession?
Groups may be classified into different types. The basis of differentiation may be purpose, extent of structuring, process of formation, and size of the group membership. 1) Primary and secondary groups: primary groups are those characterized by in
What is the main difference between diabetes insipidus and diabetes mellitus? What are the characteristic signs of the diabetes insipidus?
18,76,764
1945295 Asked
3,689
Active Tutors
1439604
Questions Answered
Start Excelling in your courses, Ask an Expert and get answers for your homework and assignments!!