1 July 1995 Optical properties of miniaturized endoscopes for ophthalmic use
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Abstract
Endoscopes for use in ophthalmology can now be manufactured with overall intraocular diameters smaller than 0.89 mm. Endoscopes based on gradient-index lenses yield a higher resolution than those making use of ordered fiber bundles having the same diameter. Likewise, endoscopes with optical elements having a diameter of 0.50 mm yield a higher resolution than those with smaller diameter (0.35 mm). Thanks to the miniaturization, a working channel can also be integrated within the tube of the endoscope instead of being a part of the illumination bundle. This allows the design of new endoscopic devices including various surgical instruments. Preference is given to an endoscope with an integrated aspiration/irrigation system or with a fiber for laser therapy. The potential phototoxicity of these systems is briefly discussed.
Pascal O. Rol, Reinhard Jenny, Dominik Beck, Franz Fankhauser, Peter F. Niederer, "Optical properties of miniaturized endoscopes for ophthalmic use," Optical Engineering 34(7), (1 July 1995). https://doi.org/10.1117/12.204800 . Submission:
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