Class 10 Science | Other Problems Related to the Eye, Apart from Defects of Vision

Science and Technology, Grade 10

By the end of this lesson you can

☁️

Explain what a cataract is and why it forms

🏥

Describe cataract surgery

🌈

Link colour blindness to cone cells

🌙

Link night blindness to rod cells and vitamin A

👓Defects of vision

Every part of the eye is healthy

Light focuses in the wrong place

Spectacles correct it

🩺Other eye problems

A part of the eye stops working

Lens clouds or retina cells fail

Spectacles cannot solve it

The notes are free to read in full.

Presenter notes: Today we look at three eye problems that spectacles cannot fix: cataract, colour blindness and night blindness.