yes every qualified  ophthalmologist  will  do the complete  examination  witin the charged  fee.he/she will also  tell you about  the extent of  cataract and  it's  treatment. if she  can recover to a useful  vision  after  refraction  then operation  is not mandatory  otherwise  it has to be operated.

For cataract to be tested,  no need for specialized instruments..  But seeing in slitlamp what every ophthalmologist uses we can detect.. Usually while checkup in normal consultation all ophthalmologist will see for vision,  whether improvement with glasses or not,  cataract or any other problems are there in the eye or not.. If needed cataract sx then only we need some instruments to check for lens power and all