MS LEC FINALS (eyes)

• Another term for a decrease in accommodation

  Presbyopia
• This is related to visual processes and impairment.


  Aging
• It is termed as smaller pupils.

  Senile Miosis
• Termed as pupillary dilation.

  Mydriasis
• Termed as pupillary constriction.

  Miosis
• This would mask and reduce the brightness of object in the visual field.

  Presence of glare
• This would lead to increased opaqueness due to deposits of substances.

  decreased lens transparency
• Irregular curvature of the lens would result to distorted and blurred images, also known as?

  Astigmatism
• 2/3 of the population with impaired vision is older than _ years old.

  65
• For younger people the risk for eye disorders is usually related to ?

  traumatic injuries
• The encoding of pattern of light from the environment is referred to as ?

  photoreceptors
• This nerve is considered to be purely sensory.

  optic nerve no. 2
• It is round, ball-shaped organ, about 2.5 cm long and 2.3 cm in diameter, located in front of the eye orbit.

  eyeball
• bony socket of the skull, surrounds and protects the eye.

  orbit
• Medial aspect of the orbit.

  Lacrimal bone
• Posterior aspect of the orbit

  Ethmoid bone
• Lateral aspect of the orbit.

  Sphenoid bone
• Superior aspect of the orbit.

  Frontal bone
• Inferior aspect of the orbit.

  Zygomatic and Maxillary bones
• Eye is not in direct contact with the bone because that is protected or your eye is usually surrounded by fatty tissues.

  True
• Parts of the Uvea include?

  Choroid, Ciliary body, Iris
• The external layer of the eye is referred to ?

  Sclera
• The middle layer of the eye is referred to?

  Uvea
• The innermost layer is referred to ?

  Retina
• It is the outer layer that appear white and covered by the cornea

  Sclera
• Regulates the light entry in and out of the eye.

  Pupil
• The inner sensory portion which would be composed of photoreceptors.

  Retina
• What are the 2 kinds of Photoreceptors?

  Rods and Cones
• It is a kind of photoreceptor that work on low light levels and provide peripheral vision

  Rods
• Rods contain the protein

  Rhodopsin
• It is part of the retina that is active with bright light levels and provide color/ central vision.

  Cones
• What vitamin do you give to patients with color blindness?

  Vit A
• This vitamin is needed by Rhodopsin which aids in the production of rods and cones.

  Vit A
• It is considered to be a transparent biconvex structure, located directly behind iris and pupil, one of its function is to refract light rays to focus them on the retina, it is also responsible for accommodation.

  Lens
• It is the drainage system for the fluid moving between the anterior and posterior chambers.

  Canal of Schlemm
• They are the ones that secrete acidic sweat to kill bacteria.

  Ciliary Gland
• This gland secrete oily substances to protect the eyes.

  Meibomian Gland
• This facilitates the tears and aid in the protection of the eyes.

  Lacrimal apparatus
• This facilitates the lubrication of the eye.

  Mucus secretion
• This gland intends to produce the fluid.

  Lacrimal gland