Score of Tatham et al for Grading Eye Drop Instillation Technique

Tatham et al used a score to grade a patient's technique for eye drop instillation. The authors are from University Hospital Leicester.

Patient selection: self-instillation of eye drops

Parameters:

(1) technique

(2) drop delivery

(3) contamination (touches tip to eye, eyelid or eyelashes)

(4) touches cornea

Technique	Drop Delivery	Contamination	Cornea	Score
good	on target with drop in eye	none	no	4
awkward	on target with drop in eye	none	no	3
awkward	on target with drop in eye	present	no	2
awkward	on target with drop in eye	present	touches cornea	1
poor	not on target, drop misses eye	none	NA	0
poor	not on target, drop misses eye	present	NA	-1

where:

• Touching the cornea with the bottle or dropper may be associated with corneal injury.

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