Contact lenses are predominately used to correct vision and offer many advantages over glasses. People choose to wear contact lenses for some or   all of the following reasons:

 

 

 

·        Cosmetic - virtually invisible to the observer

·        No steaming or fogging in rainy weather

·        Wider field of view

·        Safer for sport

·        To obtain the best vision possible in certain conditions where spectacles cannot do so e.g. keratoconus

·        To temporarily correct short sightedness without spectacles - orthokeratology

 

 

Contact lenses are used to correct the same conditions that spectacles correct:

·        Myopia (nearsightedness)

·        Hyperopia (farsightedness)

·        Astigmatism (distorted vision)

·        Presbyopia (need for reading glasses)

 

Special tinted contacts can be used to change the colour of the eyes to various degrees.