An md-11 first officer reported the MXP210 smoke goggles are unusable when worn over his eyeglasses ...

Narrative:

I have recently been prescribed glasses to assist in near vision while performing flying duties. I have difficulty seeing checklists; approach plates; notes; and instruments without them. The md-11 preflight requires us to ensure that the smoke goggles are serviceable. During the last international pairing I preflighted my goggles several times; all with negative results. I was unable to successfully don the mask and goggles over my glasses.the aircraft is equipped with the eros MC10 oxygen masks and MXP210 goggles. I am not able to use the MXP210 goggles over my glasses; and concluded that in order to achieve an airtight fit in a smoke situation; I would have to leave off my glasses. Even without the glasses on; the MC10 mask and MXP210 goggles render an extremely limited field of view; without my prescribed glasses; the visibility in the cockpit becomes a real challenge; even without the smoke. The company which manufactures the eros mask and goggles does make a glasses-friendly goggle series; the mxg; which is compatible with the MC10 mask.in conclusion; I am concerned that the high proportion of wearers of glasses (almost 100% of captains; and 50% of first officers) are not in fact capable of wearing their prescribed corrective lenses in conjunction with the eros system provided in our md-11s. In the event of a smoke situation; our ability to function will be seriously compromised.

Original NASA ASRS Text

Title: An MD-11 First Officer reported the MXP210 smoke goggles are unusable when worn over his eyeglasses because the glasses prevent the goggles from making an air tight seal.

Narrative: I have recently been prescribed glasses to assist in near vision while performing flying duties. I have difficulty seeing checklists; approach plates; notes; and instruments without them. The MD-11 preflight requires us to ensure that the smoke goggles are serviceable. During the last international pairing I preflighted my goggles several times; all with negative results. I was unable to successfully don the mask and goggles over my glasses.The aircraft is equipped with the EROS MC10 oxygen masks and MXP210 goggles. I am not able to use the MXP210 goggles over my glasses; and concluded that in order to achieve an airtight fit in a smoke situation; I would have to leave off my glasses. Even without the glasses on; the MC10 mask and MXP210 goggles render an extremely limited field of view; without my prescribed glasses; the visibility in the cockpit becomes a real challenge; even without the smoke. The company which manufactures the EROS mask and goggles does make a glasses-friendly goggle series; the MXG; which is compatible with the MC10 mask.In conclusion; I am concerned that the high proportion of wearers of glasses (Almost 100% of captains; and 50% of first officers) are not in fact capable of wearing their prescribed corrective lenses in conjunction with the EROS system provided in our MD-11s. In the event of a smoke situation; our ability to function will be seriously compromised.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	908627
Time
Date	201009
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZZ.Airport
State Reference	FO
Aircraft 1
Make Model Name	MD-11
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Oxygen System/Crew
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 6000 Flight Crew Type 350
Events
Anomaly	Aircraft Equipment Problem Less Severe

An md-11 first officer reported the MXP210 smoke goggles are unusable when worn over his eyeglasses because the glasses prevent the goggles from making an air tight seal.