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Modified Foot-Control Panel for Motorized Operating Microscope
118
AMERICAN JOURNAL OF OPHTHALMOLOGY
J U L Y , 1968
Fig. 2 (Hovland, Tanenbautn and Schepens). Left, normal position of depressor arm with no pressure applied on small post; right, depressor arm in downward position.
pressor* has been in use at the Retina Service at the Massachusetts Eye and Ear Infirmary. W e feel that this instrument has advantages for both patient and ophthalmologist that outweigh the minimal effort required for familiarization. 20 Staniford Street (02114) REFERENCES 1. Schepens, C. L. : Examination of the ora serrata region : Its clinical significance. Acta X V I Concilium Ophthalmologicum (Britannia) 2:1384,1950. 2. Schepens. C. L. and Bahn, G. C. : Examination of the ora serrata : Its importance in retinal detachment. Arch. Ophth. 44:677,1950. 3. Tran tas, A . : Moyens d'explorer par f ophthalmoscope et par translúcidas—la partie antérieure du fond oculaire, le cercle ciliaire y compris. Arch. d'Ophthal. 20:314,1900. 4. Brockhurst, R. J. : Modem indirect ophthalmoscopy. Am. J. Ophth. 41:265,1956. 5. Freeman, H . M. : General discussion of preoperative examination. In Schepens, C. L.. and Regan, C. D. (eds.) : Controversial Aspects of the Management of Retinal Detachment Boston, Little, Brown, 1965, p. 54. * This instrument can be obtained through Medical Instrument Research Associates, 150 Causeway Street, Boston, Massachusetts.
MODIFIED F O O T - C O N T R O L PANEL FOR MOTORIZED O P E R A T I N G MICROSCOPE DOUGLAS E. WILLIAMSON,
M.D.
Venice, Florida
For those ophthalmologists who sit while using an operating microscope (such as the new Zeiss motorized operating microscope with zoom magnification) and who like mobility, a single modification of the Zeiss microscope control panel, with bolting of the modified panel to a stool with a foot-ring and casters, has proven advantageous. A five-inch screw or bolt is secured to the front of the panel on the top surface between the two height control buttons. The entire panel is attached with bolts to the foot-ring of the stool. The surgeon may then manipulate the height and focus controls of the microscope while seated, without glancing at the control panel. T o adjust the height of the microscope he merely moves his foot from the foot-ring forward to the five-inch screw, locates it with the inside of his foot, and then presses down on the height control button. T o adjust the zoom focus he merely moves his foot to the side of the control box
V O L . 66, N O . 1
NOTES, CASES, I N S T R U M E N T S
119
Fig. 1 (Williamson). Position for optimum comfort during surgery, using a 24-inch stool with a 10-inch elevated foot-ring, and a 24-inch operating table. Arms rest on surgeon's thighs.
Fig. 2 (Williamson). During surgery the physician has instant control over all the foot buttons and need not look at foot positions.
120
AMERICAN JOURNAL OF O P H T H A L M O L O G Y
where it intersects with the foot-ring, and then presses down on the zoom-focus control button. When both stool and operating table are 24 inches high and the stool foot-ring 10 inches from the floor, the surgeon can very nicely use his thighs as arm rests, giving
J U L Y , 1968
him the same steadiness for microscopic surgery as that obtained with the arm rests of fixed stools, such as Barraquer's (Figures 1 and 2 illustrate positioning of the stool and microscope). Venice Medical Center (33595)
AMERICAN JOURNAL OF OPHTHALMOLOGY
J U L Y , 1968
Fig. 2 (Hovland, Tanenbautn and Schepens). Left, normal position of depressor arm with no pressure applied on small post; right, depressor arm in downward position.
pressor* has been in use at the Retina Service at the Massachusetts Eye and Ear Infirmary. W e feel that this instrument has advantages for both patient and ophthalmologist that outweigh the minimal effort required for familiarization. 20 Staniford Street (02114) REFERENCES 1. Schepens, C. L. : Examination of the ora serrata region : Its clinical significance. Acta X V I Concilium Ophthalmologicum (Britannia) 2:1384,1950. 2. Schepens. C. L. and Bahn, G. C. : Examination of the ora serrata : Its importance in retinal detachment. Arch. Ophth. 44:677,1950. 3. Tran tas, A . : Moyens d'explorer par f ophthalmoscope et par translúcidas—la partie antérieure du fond oculaire, le cercle ciliaire y compris. Arch. d'Ophthal. 20:314,1900. 4. Brockhurst, R. J. : Modem indirect ophthalmoscopy. Am. J. Ophth. 41:265,1956. 5. Freeman, H . M. : General discussion of preoperative examination. In Schepens, C. L.. and Regan, C. D. (eds.) : Controversial Aspects of the Management of Retinal Detachment Boston, Little, Brown, 1965, p. 54. * This instrument can be obtained through Medical Instrument Research Associates, 150 Causeway Street, Boston, Massachusetts.
MODIFIED F O O T - C O N T R O L PANEL FOR MOTORIZED O P E R A T I N G MICROSCOPE DOUGLAS E. WILLIAMSON,
M.D.
Venice, Florida
For those ophthalmologists who sit while using an operating microscope (such as the new Zeiss motorized operating microscope with zoom magnification) and who like mobility, a single modification of the Zeiss microscope control panel, with bolting of the modified panel to a stool with a foot-ring and casters, has proven advantageous. A five-inch screw or bolt is secured to the front of the panel on the top surface between the two height control buttons. The entire panel is attached with bolts to the foot-ring of the stool. The surgeon may then manipulate the height and focus controls of the microscope while seated, without glancing at the control panel. T o adjust the height of the microscope he merely moves his foot from the foot-ring forward to the five-inch screw, locates it with the inside of his foot, and then presses down on the height control button. T o adjust the zoom focus he merely moves his foot to the side of the control box
V O L . 66, N O . 1
NOTES, CASES, I N S T R U M E N T S
119
Fig. 1 (Williamson). Position for optimum comfort during surgery, using a 24-inch stool with a 10-inch elevated foot-ring, and a 24-inch operating table. Arms rest on surgeon's thighs.
Fig. 2 (Williamson). During surgery the physician has instant control over all the foot buttons and need not look at foot positions.
120
AMERICAN JOURNAL OF O P H T H A L M O L O G Y
where it intersects with the foot-ring, and then presses down on the zoom-focus control button. When both stool and operating table are 24 inches high and the stool foot-ring 10 inches from the floor, the surgeon can very nicely use his thighs as arm rests, giving
J U L Y , 1968
him the same steadiness for microscopic surgery as that obtained with the arm rests of fixed stools, such as Barraquer's (Figures 1 and 2 illustrate positioning of the stool and microscope). Venice Medical Center (33595)