1-Functions of the RPE:
A-retinal attachment
B-synthesis of Bruch's membrane
C-scavenging free radicals
D-formation of the photoreceptor's inner segment
E-renewal of photoreceptors
2-Corneal Endothelial Cells:
A-have phagocytic properties
B-are multi-nuclear
C-have tight junctions between neighbouring cells
D-have a bicarbonate pump
E-can maintain clarity even when 50% are lost
3-Regarding the Lens:
A-has a high metabolic activity
B-is the main source of lactic acid in the aqueous
C-has a uniform thickness capsule
D-the capsule is derived from the mesenchyme
E-has a high sorbitol content in diabetic patients
4-the Medial Palpebral Ligament:
A-a part of it is attached to the maxilla
B-is continuous with the lacrimal sac's fascia
C-lies anterior to the angular vein
D-interacts with fibres of orbicularis oculi
E-is formed of the aponeurosis of LPS
5-the following processes start to take place
before 5 months gestation:
A-pigmentation of iris
B-formation of dialator pupillae
C-formation of the lens placode
D-opening of eyelids
E-regression of hyaloid artery
6-the Cilioretinal artery:
A-is a branch of thr long posterior ciliary artery
B-is found in 40% of people
C-has a important role in CRAO cases
D-forms an anastomosis between retinal and
choroidal circulations
E-is affected in giant cell arteritis
7-the following nucleus are located in the pons:
A-IV nerve
B-VI nerve
C-VII nerve
D-Edinger-Westphal nucleus
E-both salivary nuclei
8-nerves of the orbit:
A-the lacrimal nerve passes above the muscle cone
B-the nasociliary nerve passes above the cone
C-the frontal nerve passes below the orbital roof
on the upper aspect of the superior rectus
D-the abducent nerve supplies the lateral rectus on
it's medial aspect
E-the frontal nerve is the largest division of the
ophthalmic
9-the blinking reflex:
A-its frequency is 20/min
B-starts with the contraction of orbicularis oculi
C-is more infrequent in blind people
D-is important for tear drainage
E-absence of the corneal reflex is the first sign
of V nerve injury
10-with respect to tears:
A-the aqueous layer is 6.5 µm thick
B-rarely contain IgA
C-less than 10% of it is lost through evaporation
D-have a diurnal variation in production
E-contain urea
11-smooth pursuit tracking movements:
A-are voluntary in most cases
B-have a latency of 200 msec
C-to the right, are under control from the right
occipital and parietal cortex
D-are relatively faster than saccades movements
12-with respect to pulfriche's phenomenon:
A-is an optic illusion
B-may be caused by cataract surgery
C-may be associated with rubeotic glaucoma
D-can be treated with LASIK
13-regarding choroidal arteries:
A-are considered "end" arteries
B-have numerous fenesterations within the endothelium
C-participate in forming bruch's membrane
D-are absent at the fovea
E-lobular ischaemia may be present in severe acute
hypertension
14-clarity of human cornea:
A-is due to low water content
B-is dependent on the integrity of the epithelium
C-the epithelium and tear film help maintain clarity
and hydration state of the cornea
D-is also due to uniform thickness of the cornea
E-when no epithelium is present, regeneration is achieved by
proliferation of conjunctival cells at the limbus