If a soft lens with a base curve of 8.6 was slightly tight, which of the following base curves would you try?

It is important to consider vertex distance when fitting contact lenses if the prescription is greater than plus or minus:

 The pre-corneal tear film is composed of three distinct layers they are: 

The distance between the upper and lower lid margins is the:

The best lens for a moderate dry eye patient is a: 

 What does Fluorescein do?

  A soft lens should have how much movement ?

 The  “dK” value of a contact lens material indicates its: 

 The tear film layer which converts the epithelium from a hydrophobic to a hydrophilic surface is the: __________ layer.

 Given the following prescription and keratometer readings: Rx: -1.00 -2.00 x 090 Ks: 45.00/43.00 x090 select the statement which describes the location and type of astigmatism present.