• Gullstrand's fundus microscopy is adapted for slit-lamp microscopy without a contact lens, equipped by a wide-aperture argon laser beam. The z axis magnification of the image is used to advantage for vitrectomy. The mobility of the device permits vitrectomy on a fixed eye.
Schirmer KE. Slit-lamp Fundus Microscopy Without Contact Lens and With Laser Attachment. Arch Ophthalmol. 1981;99(1):155-157. doi:10.1001/archopht.1981.03930010157025