We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Article |

Chondroitin Sulfate for Corneal Preservation at 4°C Evaluation by Electron Microscopy

Raymond M. Stein, MD; William M. Bourne, MD; R. Jean Campbell, MD
Arch Ophthalmol. 1986;104(9):1358-1361. doi:10.1001/archopht.1986.01050210112035.
Text Size: A A A
Published online


• We tested three new corneal preservation media in which the dextran in McCarey-Kaufman (M-K) medium was replaced by three preparations of chondroitin sulfate (CS): 1.5% CS, 5.0% CS, and 2.0% modified CS (K-Sol). One cornea from each of 36 pairs of corneas was placed in M-K medium and the opposite cornea was placed in one of the CS media. Endothelial preservation was evaluated by electron microscopy after storage at 4°C for 1, 3, 5, 7, 10, and 14 days. We judged cellular preservation in a masked manner from the electron micrographs according to a morphologic grading system. Preservation in 1.5% CS solution was similar to that in M-K medium. Both 5.0% CS and K-Sol gave better endothelial preservation than M-K medium. The best preservation appeared to be in K-Sol, in which only 3% of the endothelial cells were disrupted after 14 days of storage at 4°C.


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?





Also Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.


Some tools below are only available to our subscribers or users with an online account.

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

Customize your page view by dragging & repositioning the boxes below.