[A comparative evaluation of contact lens tolerance and the possibilities for its enhancement].

The paper analyses results after examination of 276 patients (495 eyes) with different types of rigid and soft contact lenses. A study of some ways for improvement of contact lens tolerance has shown that improvement of rigid contact lenses can be achieved both by perfection of their construction (in particular by using spherotoric rigid lenses) and with the help of gas-permeable materials (in particular, cellulase acetobutyrate). The improvement of soft lens tolerance can be achieved by reducing the thickness of the lens as well us by using highly hydrophilic gels. If the known methods for improvement of contact lens tolerance fail to be effective, medicamentous preparations (such as solcoseryl, taufon, emoxipin) can be used as a method of choice; their usage is justified in keratoconus of stages II-IV, when rigid lenses are a single kind of optic correction and their tolerance is lowered.