wiz-icon
MyQuestionIcon
MyQuestionIcon
3
You visited us 3 times! Enjoying our articles? Unlock Full Access!
Question

Human eye lens is

A
Spherical and can be moved forward.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
Biconvex and cannot be moved forward.
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
Spherical and cannot be moved forward.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
Biconvex and can be moved forward.
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B Biconvex and cannot be moved forward.
  • At rest, the lens in the normal eye focuses images of distant objects on the retina.
  • It acts in much the same way as a biconvex optical glass lens, however, it cannot be moved forward.
  • Thus, the refractive power of the lens is a function of the curvature of the lens surfaces, as well as the refractive index of the cell mass.
  • The closely packed, highly ordered array of lens cells is essential for optical quality, and even small defects in lens fiber cell anatomy can cause detectable spherical aberration.
    So, the answer is - 'Biconvex and cannot be moved forward'.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Sensory Systems - The Eye
BIOLOGY
Watch in App
Join BYJU'S Learning Program
CrossIcon