🔶D.D decreased corneal sensation
▪️herpes simplex keratitis
▪️herpes zoster ophthalmicus
▪️DM
▪️Trigeminal dysfunction

🔶D.D OF RED EYE
▪️conjunctivitis
▪️keratitis
▪️endophthalmitis
▪️scleritis &episcleritis

🔶D.D enlargement of blind spot
▪️POAG
▪️papilledema

🔸Ring Scotoma
▪️POAG
▪️Retinitis pigmentosa

🔶D.D OF Bitemporal hemianopia
▪️pituitary tumours
▪️meningioma

🔶D.D of sudden painless loss of vision
▪️CRAO
▪️massive vitreous hemorrhage
▪️ischemic CRVO
▪️Methanol poisoning ( اذكرو الكارثة يلي صارت في 2013 )

🔶D.D sudden painful loss of vision
▪️acute congestive glaucoma
▪️acute iridocyclitis
▪️chemical injury
▪️optic neuritis

🔶D.D night blindness (nyctalopia)
▪️vitamin A deficiency
▪️retinitis pigmentosa
▪️peripheral cortical cataract
▪️high myopia

🔶D.D Day blindness
▪️central nuclear cataract
▪️central vitreous opacity
▪️congenital deficiency of Cones

🔶D.D cherry red spot in macula
▪️commotio retina
▪️CRAO
▪️Quinine poisoning
▪️giant cell arteritis

🔶D.D causes of PHOTOPSIA
▪️posterior vitreous detachment
▪️retinitis
▪️retinal detachment
▪️vitreous traction (cyclitic membrane(

🔶D.D Conjunctival discharge
▪️watery discharge (viral inflammation)
▪️mucoid discharge ( vernal conjunctivitis)
▪️purulent discharge (acute bacterial infection)
▪️Mucopurulent discharge (mild bacteria《chlamydial infection》)

🔶D.D of heterochromia
▪️congenital
▪️Horner's syndrome
▪️Fuch's hetero chromia Cyclitis
▪️Drud( xalatan)

Compare between
Rhegmatogenous retinal detachment
Exudative """RD
Tractional""RD
#عيون

DD Enlarged coneal nerves

Leprosy
Neurofibromatosis
Keratoconus
Fuchs corneal endothelial dystrophy
Herpes simplex keratitis
Herpes zoster keratitis
Acanthaomeba keratitis
#عيون

Amacrine cells function in retina
As a carriers for rod signals to ganglion cells

Muller cells function they are the major Glial cells in retina responsible for the
Homeostasic and metabolic function
Support of retinal neurons
#عيون

Saccade is an abrupt rapid Involuntary movement of the eye

Aniseikonia is the difference in the size of the images formed by the two eyes

Ophthalmoplegic migrane means
When the headache is followed by partial paralysis of the third nerve
On the same side as hemicarnia without any scotoma
#عيون

Congnital glaucoma is due to mutation
In optineurin

ongenital glaucoma best treated by
Trabeculoectomy

#عيون

The most common malignant tumor of eyelid is basal cell carcinoma

The most common benign tumor of eye lid is squamous papilloma

The most comon primary tumor of eye
In adult choroidal melanoma

The most common primary tumor of eye in children is retinoblastoma

#عيون

ماشاء الله كل الشكر لزميلنا وليد الحبيشي على المشاركة والمساعدة بهذي ال Notes الفخمة ✨✨✨✨

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