The Use of a Model Eye to Gain Endophotocoagulation Skills

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Abstract
To the Editor. —The value of argon laser endophotocoagulation during pars plana vitrectomy for proliferative diabetic retinopathy has been well documented.1 Recently, Hampton2 illustrated the use of this modality under indirect ophthalmoscopic control in situations in which the fundal view through the operating microscope is poor. Practice is required to position the endolaser probe safely and accurately with indirect ophthalmoscopic control (MIRA, Waltham, Mass). This skill can be learned by using the MIRA practice eye. This model eye can be used to acquire the eye-hand coordination necessary for precise positioning of the intraocular probe with indirect ophthalmoscopic control. The MIRA eye is stabilized on its wooden mount (Fig 1). The globe can be oriented according to the optic nerve and fundal pattern that is painted on its internal posterior surface. A 19-gauge needle is introduced through the pars plana in the appropriate meridian. The endolaser probe is then

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