22 results
Xeropthalmia: Pathogenesis and Ocular Manifestations

Decr Visual pigment -> Keratinization, thickening & non-wetting of the conjunctiva
Pathogenesis and Ocular ... production -> Corneal ... and cornea, typically ... blindness) • Corneal ... dryness of the cornea
Red Eye - Differential Diagnosis Framework

What?
Redness in the eye can be caused by many conditions and
Conjunctivitis, corneal ... Blepharitis Cornea ... Unilateral or bilateral symptoms ... • Is the eye painful ... • Corneal ulcer
Vision Loss - Differential Diagnosis
Chronic: 
  - Cornea: Scarring, Edema
  - Lens: Cataracts
Vision Loss - Differential ... Chronic: - Cornea ... Cataracts - Macula: Macular ... : Keratitis, Corneal ... #Diagnosis #causes
Blurry Vision - Differential Diagnosis Framework

Anatomical Approach to Eye Disease:
1. Lids/Lashes
2. Extraocular Muscles/Motility
3. Conjunctiva/Sclera
4. Cornea
5. Anterior
Cornea 5. ... Trauma Cornea ... Keratitis • Corneal ... Nucleus Visual Cortex ... → visual loss)
Orbital Cellulitis: Pathogenesis and Clinical Findings
Definitions:
a. Chemosis: Edema of the bulbar conjunctiva
b. Panopthalmitis: inflammation of all
of the bulbar conjunctiva ... Impaired extra-ocular ... Proptosis -> Exposes cornea ... -> Corneal drying ... diagnosis #signs #symptoms
Differential Diagnosis for Vision Loss
Unilateral, Painful Vision Loss:
 • Corneal abrasion, Acute angle-closure glaucoma, Inflammation-iritis, uveitis,
, Painful Vision ... Loss: • Corneal ... caustic exposure to eye ... Vision Loss: ... differential #diagnosis #causes
Unilateral Acute Vision Loss - Differential Diagnosis Algorithm
Painful - Cornea
 • Keratopathy
Painful - No Abnormalities of
Unilateral Acute Vision ... Loss - Differential ... Diagnosis Algorithm Painful ... - Cornea • Keratopathy ... Diagnosis #Algorithm #Causes
Keratoconus: Pathogenesis and Clinical Findings
Genetics
 • Family history of keratoconus
 • Ehlers-Danlos syndrome
 • Down, Turner,
Contact lens use • Eye ... Bilateral, asymmetric corneal ... degeneration, and cone-shaped ... Keratoconus Signs / Symptoms ... Rizutti's Sign • Corneal
Fusarium Eye Infections - Keratitis and Endophthalmitis
Fungal Keratitis is an infection of the cornea that is
infection of the cornea ... most commonly caused ... will result in corneal ... loss - important ... Endophthalmitis #ocular
Bitot's Spots- A 4-year-old boy was brought by his father to the ophthalmology clinic with a
decreased night vision ... near the outer corners ... The ocular findings ... as a result of corneal ... NEJM #clinical #photo