Question

The Iris
a) Controls the line of the eye
b) Controls the amount of light entering the eye
c) Acts as converging lens.
d) is controlled by the ailiary muscles.​

Answer 1

Answer:

ᴍᴇʀᴄʜᴀɴᴅɪsɪɴɢ ɪs ᴛʜᴇ ᴘʀᴏᴍᴏᴛɪᴏɴ ᴏғ ɢᴏᴏᴅs ᴀɴᴅ/ᴏʀ sᴇʀᴠɪᴄᴇs ᴛʜᴀᴛ ᴀʀᴇ ᴀᴠᴀɪʟᴀʙʟᴇ ғᴏʀ ʀᴇᴛᴀɪʟ sᴀʟᴇ. ᴍᴇʀᴄʜᴀɴᴅɪsɪɴɢ ɪɴᴄʟᴜᴅᴇs ᴛʜᴇ ᴅᴇᴛᴇʀᴍɪɴᴀᴛɪᴏɴ ᴏғ ǫᴜᴀɴᴛɪᴛɪᴇs, sᴇᴛᴛɪɴɢ ᴘʀɪᴄᴇs ғᴏʀ ɢᴏᴏᴅs ᴀɴᴅ sᴇʀᴠɪᴄᴇs, ᴄʀᴇᴀᴛɪɴɢ ᴅɪsᴘʟᴀʏ ᴅᴇsɪɢɴs, ᴅᴇᴠᴇʟᴏᴘɪɴɢ ᴍᴀʀᴋᴇᴛɪɴɢ sᴛʀᴀᴛᴇɢɪᴇs, ᴀɴᴅ ᴇsᴛᴀʙʟɪsʜɪɴɢ ᴅɪsᴄᴏᴜɴᴛs ᴏʀ ᴄᴏᴜᴘᴏɴs.

Answer 2

Answer:

The cornea and lens of an eye act together to form a real image on the light-sensing retina, which has its densest concentration of receptors in the fovea and a blind spot over the optic nerve. The power of the lens of an eye is adjustable to provide an image on the retina for varying object distances. Layers of tissues with varying indices of refraction in the lens are shown here. However, they have been omitted from other pictures for clarity.

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