By Michael Hutton
Monovision contact lenses could provide an important vision correction choice for the post-war ‘Baby Boomer' generation whose failing eyesight as they get older has led to the US Federal Highway Commission issuing new regulations on road signage. These regulations require State traffic authorities to improve the retro-reflectivity on road signs so that they appear to be illuminated when they are caught in a vehicle's headlights and make the signage details easier to read at night. This is achieved by applying prismatic sheeting to the signs which represents the latest available technology.
A second important change specified in the new FHC regulations requires all signs to use upper and lower case lettering rather than upper case alone since tests have shown that the former is more easily read by drivers. Again this change is being introduced with older drivers in mind since people find their eyesight begins to deteriorate once they reach their 40's and often they are reluctant to get their sight checked if they have previously enjoyed good vision. In particular, difficulty with reading - known as presbyopia - is a particular problem encountered by people as they get older and this is where monovision contact lenses can provide a great solution.
For many short-sighted adults who use glasses or conventional contact lenses to provide good distance vision, the onset of presbyopia often results in them choosing to have a second pair of glasses specifically for reading or trying bi-focal/vari-focal glasses. However, the option of monovision contact lenses - and especially orthok corrective contact lenses which are only worn at night while sleeping - provides a solution which can enable older people to continue enjoying all activities whether based on near or distant vision. Only one lens is worn to provide corrected distance vision whilst the uncorrected eye deals with near distance requirements such as reading.
Check if you are suitable for monovision orthok corrective contact lenses .