Haag-Streit Large Three Mirror Lens
The established Goldmann contact lenses series for examination of the entire ocular fundus and the iridocorneal angle. The 903 is the classic Goldmann lenses - the S in 903 S indicates that there is a scleral flange which serves as a eyelid block. They can be used with Sterycup - best to prevent the transfer of prions between patients.
