[Retracted] Effect of Polyethylene Cover for Preventing Corneal Injury in Critically Ill Patients: A Meta-Analysis

Table 2

Clinical baseline information and primary conclusion of studies.

Study	Study design	Patient type	No. patients		Intervention		Conclusion
			Experimental	Control	Experimental	Control
Cortese 1995	RCT	Critically ill patients	30	30	Polyethylene cover	Methylcellulose lubricating drops every 2 h	Moisture chamber is more effective than lubricating drops in preventing corneal epithelial breakdown in critically ill patients with limited or absent blink reflex
Koroloff 2004	RCT	Semiconscious intensive care patient	50	60	Polyethylene cover	Combining hypromellose drops and Lacri-Lube every 2 h	Polyethylene covers are as effective as HL in reducing the incidence of corneal damage in intensive care patients
So 2008	RCT	Critically ill patients	59	57	Polyethylene cover	1 cm of Duratears ointment every 4 h	Polyethylene cover is found to be equally effective in preventing corneal abrasions when compared with lanolin eye ointment
Shan 2010	RCT	ICU	29	28	Polyethylene cover	Two drops of carboxymethylcellulose drops every 2 h	Polyethylene covers are more effective and more time-saving in reducing the incidence of corneal damage in intensive care patients
Baker 2012	RCT	Ventilated patients in ICU	20	20	Polyethylene cover	One drop of Viscotears (polyacrylic acid viscous gel) every 8 h	The use of polyethylene cover and Viscotears gel were equally effective in prevention of corneal abrasions in critically ill patients
Su 2012	RCT	Critically ill patients	30	30	Polyethylene cover	Artificial eye gels and antibiotic ointment every 4 h	Using polyethylene film for eye care of critically ill patients can effectively prevent eye complications and prevent eye dryness
Ahmadinejad 2020	RCT	Critically ill patients	41	42	Polyethylene cover	2 cm of ointment; every 2 h	Polyethylene cover followed by simple eye ointment and eyelid taping were the most effective methods in preventing ocular surface disorders
Khatiban 2021	RCT	Comatose patients	29	25	Polyethylene cover	Artificial teardrops (polyvinyl alcohol or hydroxypropyl methylcellulose)	Polyethylene eye covers significantly reduced the incidence and severity of ocular surface disorders

RCT: randomized controlled trails.