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Contact lenses for Fundus Photocoagulation
(Laser spot diameter at the retina versus the photocoagulator spot size setting. For example, a lens with a spot magnification factor of 0.80 would yield a retinal spot size of 80 micros, given a 100 micron photocoagulator setting.)

Lens	Uses	Image	Spot Magnification	Field of view
Goldmann	Macula Equator Periphery	Virtual Erect	1.08	360
Volk Supermacula 2.0	Macula	Real Inverted	2.15	700
Mainster High Magnification	Macula	Real Inverted	1.34	750
Volk Area Centralis	Macula Equator	Real Inverted	1.13	820
Mainster Standard	Macula Equator	Real Inverted	1.03	900
Panfunduscopic	Equator  Periphery	Real Inverted	0.76	1200
Volk Transequator	Equator  Periphery	Real Inverted	0.75	1220
Mainster Wide Field	Equator  Periphery	Real Inverted	0.73	1250
Volk QuadrAspheric	Equator  Periphery	Real Inverted	0.56	1300
Mainster Ultra Field PRP	Equator  Periphery	Real Inverted	0.57	1400
Volk SuperQuard 160	Equator Periphery	Real Inverted	0.56	1600
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