Depending on the type of ocular injury, either a pressure patch or shield patch should be applied. Up until circa 1987, pressure patches were the preferred method of treatment for corneal abrasions in non-contact lens wearers; Multiple controlled studies conducted by accredited organizations such as the American Academy of Ophthalmology have shown that pressure patching is of little or no value in healing corneal abrasions and is actually detrimental to healing in some cases. A Cochrane Review found that patching simple corneal abrasions may not improve healing or reduce pain.[7] Pressure patching should never be used on an individual presenting with a corneal abrasion who has a history of contact lens wear.