Keratoconus
Keratoconus (also known as “conical cornea”) is a degenerative disease of the eyes that manifests itself as a gradual degradation of the cornea into a more conical form than the typical eyeball. 
This condition can cause extreme nighttime vision distortion, sensitivity to light, itching, “ghost” images and some distortion of daytime vision. The etiology of this condition is not fully understood, though it’s known that proteases break down many of the keratin bonds in Bowman’s layer of the cornea, causing a relaxation of the tissues. 
In most patients with keratocornea, the degradation will “settle” at a degree that can be corrected by glasses. In 25% of patients, however, corneal transplant may be called for, in order to allow nighttime vision and increased sight during the day.
Diseases of the Eye: Number One. Moorfields Manchester Institute of Ophthalmology, The Medical Illustration Department, pre-1950.

Keratoconus

Keratoconus (also known as “conical cornea”) is a degenerative disease of the eyes that manifests itself as a gradual degradation of the cornea into a more conical form than the typical eyeball.

This condition can cause extreme nighttime vision distortion, sensitivity to light, itching, “ghost” images and some distortion of daytime vision. The etiology of this condition is not fully understood, though it’s known that proteases break down many of the keratin bonds in Bowman’s layer of the cornea, causing a relaxation of the tissues.

In most patients with keratocornea, the degradation will “settle” at a degree that can be corrected by glasses. In 25% of patients, however, corneal transplant may be called for, in order to allow nighttime vision and increased sight during the day.

Diseases of the Eye: Number One. Moorfields Manchester Institute of Ophthalmology, The Medical Illustration Department, pre-1950.

1,020 notes

Show

  1. utagasm reblogged this from tha-juiciest-j
  2. tha-juiciest-j reblogged this from biomedicalephemera
  3. its-relevant reblogged this from biomedicalephemera
  4. psy-geist reblogged this from biomedicalephemera
  5. i-foreyes reblogged this from biomedicalephemera
  6. noonerelevant reblogged this from nnebulaee
  7. nnebulaee reblogged this from biomedicalephemera
  8. aisyahxyz reblogged this from biomedicalephemera
  9. nikayyyy reblogged this from biomedicalephemera
  10. zombister reblogged this from eyedefects
  11. khawlah-kb reblogged this from biomedicalephemera
  12. diterrestres reblogged this from biomedicalephemera and added:
    Part of the 25%, I feel special now
  13. cerealcheeriokiller reblogged this from biomedicalephemera
  14. genuinethot reblogged this from zayndestroyme
  15. catsexchange reblogged this from zayndestroyme
  16. hoodieniallen reblogged this from zayndestroyme
  17. zayndestroyme reblogged this from biomedicalephemera
  18. killthenerverland reblogged this from biomedicalephemera
  19. qootabdulrhman reblogged this from ig-93
  20. ig-93 reblogged this from biomedicalephemera