Term
How are the following four corneal problems similar? Cornea Plana
Microcornea
Megalocornea
Keratoglobus |
|
Definition
| They all have to do with abnormal size or curvature of the cornea |
|
|
Term
| Which corneal disorder is characterized by an extremely flat cornea and obscure limbal landmarks? |
|
Definition
|
|
Term
| Condition in which the cornea measures <10mm in diameter |
|
Definition
|
|
Term
| Microcornea is associated with what type of refractive error? |
|
Definition
|
|
Term
| Condition where the cornea is >13mm in diameter |
|
Definition
|
|
Term
| You have a 6mo patient whose cornea measures 13.5mm across. Which condition do you HAVE to rule out? |
|
Definition
|
|
Term
| What sort of refractive error is associated with megalocornea? |
|
Definition
| High Myopia and astigmatism |
|
|
Term
What is the condition that resembles megalocornea and is characterized by a thin cornea, especially in the periphery?
What must the patient be aware of? |
|
Definition
Keratoglobus
PT must be aware of the possibility of the cornea rupturing with trauma, thus they must be extra careful in protecting their eyes. |
|
|
Term
| Condition where the posterior cornea is indented but the anterior cornea is normal, acuity is not often affected. |
|
Definition
|
|
Term
| Abnormality in the posterior stroma, Descemet's and endothelium results in central corneal opacification in infants, peripheral is clear |
|
Definition
| Peter's Anomaly-a mesenchymal Dysgeneses |
|
|
Term
| Disorder characterized by anterior displacement of Schwalbe's line |
|
Definition
|
|
Term
| Disorder characterized by anterior displacement of Schwalbe's line along with iris strands that run across the anterior chamber to attach to Schwalbe's |
|
Definition
| Axenfeld's Anomaly/Syndrome |
|
|
Term
| How are Axenfeld's Anomaly and Syndrome different? |
|
Definition
| In the syndrome IOPs are elevated but normal in anomaly |
|
|
Term
| Disorder characterized by anterior displacement of Schwalbe's line, iris strands attaching to Schwalbe's and iris hypoplasia |
|
Definition
| Rieger's Anomaly/Syndrome |
|
|
Term
| What is the difference between Rieger's Syndrome and Anomaly |
|
Definition
Anomaly-only the eye is involved
Syndrome-a systemic condition |
|
|
Term
| Describe what illumination is best to visualize EBMD with the slit lamp and what you may see. |
|
Definition
High Mag, Retroillumination
Staining is useful too, will observe negative staining
May see-map like structures, dots, fingerprints etc.
May see a instantaneous TBUT
|
|
|
Term
| How is Mild EBMD treated? |
|
Definition
Hypertonic 5% NaCl ung at night
Lubrication |
|
|
Term
| Which condition is characterized by an irregular, fishnet opaque pattern in Bowman's layer, accompanied by painful RCE |
|
Definition
|
|
Term
| Granular, Lattice and Crystalline Dystrophies affect which layer of the cornea? |
|
Definition
|
|
Term
| Which sort of dystrophy is associated with hypercholesterolemia and possibly xanthelasma? |
|
Definition
|
|
Term
| Name a procedure used to treat epithelial and anterior stromal corneal dystrophies, but is less invasive than PKP. |
|
Definition
| Phototherapeutic Keratectomy |
|
|
Term
| Condition where the full thickness of the stroma is invaded by mucopolysaccharide material |
|
Definition
|
|
