Podcast
Questions and Answers
What is the function of eyelids in relation to light and radiation?
What is the function of eyelids in relation to light and radiation?
- Form a barrier to reduce the amount of light and other radiation entering the eye (correct)
- Enhance the effects of light and radiation on the eye
- Contain specific pigments to absorb light and radiation
- Increase the amount of light entering the eye
What marks the boundary of the tarsal plate in the eyelids?
What marks the boundary of the tarsal plate in the eyelids?
- Grey-line (correct)
- Lacrimal puncta
- Tarsal glands
- Mucocutaneous junction
How do eyelids distribute tears over the ocular surface?
How do eyelids distribute tears over the ocular surface?
- During blinking (correct)
- By blocking tear production
- By holding tears in separate ducts
- By increasing tear evaporation
Which of the following tissues is NOT part of the structures of the eyelids?
Which of the following tissues is NOT part of the structures of the eyelids?
Which part of the eyelid undergoes a change from keratinised epithelium to unkeratinised epithelium?
Which part of the eyelid undergoes a change from keratinised epithelium to unkeratinised epithelium?
Where does the epidermis of the skin change to unkeratinised epithelium of conjunctiva in the eyelids?
Where does the epidermis of the skin change to unkeratinised epithelium of conjunctiva in the eyelids?
What acts as a barrier to prevent the spread of orbital infections into the globe?
What acts as a barrier to prevent the spread of orbital infections into the globe?
Where is the epicanthal fold commonly found?
Where is the epicanthal fold commonly found?
What marks the regions where the tissue of the eyelids is anchored to the facial bones?
What marks the regions where the tissue of the eyelids is anchored to the facial bones?
What divides each eyelid into orbital and tarsal portions?
What divides each eyelid into orbital and tarsal portions?
What creates the intraconal space by connecting the 4 recti muscles?
What creates the intraconal space by connecting the 4 recti muscles?
What covers increasing amounts of the upper cornea as age increases?
What covers increasing amounts of the upper cornea as age increases?
Which part of the eyelids consists of a network of collagen & elastic fibers with numerous fine blood vessels & lymphatics?
Which part of the eyelids consists of a network of collagen & elastic fibers with numerous fine blood vessels & lymphatics?
Which element subdivides the orbit into compartments by containing fibroblasts?
Which element subdivides the orbit into compartments by containing fibroblasts?
How are the eyelids separated from one another?
How are the eyelids separated from one another?
Which structure connects the periorbita to Tenon's capsule & intermuscular membranes?
Which structure connects the periorbita to Tenon's capsule & intermuscular membranes?
What is the function of the check ligament in relation to muscle action?
What is the function of the check ligament in relation to muscle action?
Which structure envelops the EOM and connects the muscle segments to each other?
Which structure envelops the EOM and connects the muscle segments to each other?
