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Martin Charles MD
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This is a case of a Macular hole surgery using the Volk's MERLIN surgical system. This system provides precise control of non-contact lens position and focus for clear, crisp views during vitreoretinal surgery. I use the automated version which synchronizes the condensing lens with the retinal lens. With Merlin's automated system, once the system senses the retinal lens has been moved into the surgical field, it shifts the condensing lens into the optical pathway. This allows me to avoid changing the microscope height when working on the vitreous after switching from corneal to retinal views. Merlin has a choice of three high resolution lenses: a wide angle with views to the ora; a small diameter wide angle for working with narrow-browed patients; and a mid field with higher magnification for more detailed examination of the posterior pole to the equator. All lenses are high grade, autoclave sterilizable glass lenses and deliver the highest quality retinal views. Methylcellulose is used to avoid wetting the cornea with BSS. It gives approximately 15 minutes of coating on the cornea. The Wide angle lens is used in this case. A core vitrectomy is performed. Triamcinolone is injected to stain the vitreous and then aspirated with the vitreous probe. Brilliant blue G dye is injected to stain the ILM and aspirated after some seconds. I change my lens to the Volk SSV direct image contact lens to perform the macular peel. When the ILM is not exposed the dye does not stain it at all. I start peeling the posterior hyaloid that was strongly attached. A new stain is achieved with Brilliant blue G dye now that the ILM is completely exposed. I start the peel by picking the ILM in its natural left cleavage by the previous posterior hyaloid dissection. The ILM is peeled in a circular fashion. I switch the lens to the Merlin High mag lens. Fluid air exchange is performed. Note the crisp image that this lens provides with an air filled eye. The wide field lens is re-attached. Note the high resolution peripheral image this lens provides.
Posted: 3/07/2012
Martin Charles MD
This is a case of a Macular hole surgery using the Volk's MERLIN surgical system. This system provides precise control of non-contact lens position and focus for clear, crisp views during vitreoretinal surgery. I use the automated version which synchronizes the condensing lens with the retinal lens. With Merlin's automated system, once the system senses the retinal lens has been moved into the surgical field, it shifts the condensing lens into the optical pathway. This allows me to avoid changing the microscope height when working on the vitreous after switching from corneal to retinal views. Merlin has a choice of three high resolution lenses: a wide angle with views to the ora; a small diameter wide angle for working with narrow-browed patients; and a mid field with higher magnification for more detailed examination of the posterior pole to the equator. All lenses are high grade, autoclave sterilizable glass lenses and deliver the highest quality retinal views. Methylcellulose is used to avoid wetting the cornea with BSS. It gives approximately 15 minutes of coating on the cornea. The Wide angle lens is used in this case. A core vitrectomy is performed. Triamcinolone is injected to stain the vitreous and then aspirated with the vitreous probe. Brilliant blue G dye is injected to stain the ILM and aspirated after some seconds. I change my lens to the Volk SSV direct image contact lens to perform the macular peel. When the ILM is not exposed the dye does not stain it at all. I start peeling the posterior hyaloid that was strongly attached. A new stain is achieved with Brilliant blue G dye now that the ILM is completely exposed. I start the peel by picking the ILM in its natural left cleavage by the previous posterior hyaloid dissection. The ILM is peeled in a circular fashion. I switch the lens to the Merlin High mag lens. Fluid air exchange is performed. Note the crisp image that this lens provides with an air filled eye. The wide field lens is re-attached. Note the high resolution peripheral image this lens provides.
Posted: 3/07/2012
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