Air carrier pilot reported dfw runway 17C lights are too bright and are a distraction.

Attributes
ACN	1685472
Time
Date	201909
Local Time Of Day	0601-1200
Place
Locale Reference	DFW.Airport
State Reference	TX
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Final Approach Landing
Route In Use	Visual Approach
Flight Plan	IFR
Person 1
Function	Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 8
Events
Anomaly	Ground Event / Encounter Other / Unknown Inflight Event / Encounter Other / Unknown

Narrative:

Landing in dfw runway 17C. No weather or obstruction. During landing phase approach; runway lights are excessively illuminated. This condition causes our vision to be impaired during flare. As you transition over the overrun to landing; it takes several seconds for your eyes to adjust from high light settings or illumination. The distraction is more notable in low visibility when a halo effect 'blooming' around the lights. During VFR conditions with high illumination levels we can easily see the runway from a great distance but it is not necessary for our landing. Use of led lighting which is pure light; this produces high illumination levels which hurts our night vision. Led lights also cause a blooming effect during high moisture days. Lighting must be adjusted to suitable levels to not hurt our night vision. Day time levels are not an issue. With high moisture level blooming occurs at high illumination levels; lights must be adjusted to prevent this at night.

Original NASA ASRS Text

Title: Air carrier pilot reported DFW Runway 17C lights are too bright and are a distraction.

Narrative: Landing in DFW RWY 17C. No weather or obstruction. During landing phase approach; runway lights are excessively illuminated. This condition causes our vision to be impaired during flare. As you transition over the overrun to landing; it takes several seconds for your eyes to adjust from high light settings or illumination. The distraction is more notable in low visibility when a halo effect 'Blooming' around the lights. During VFR conditions with high illumination levels we can easily see the runway from a great distance but it is not necessary for our landing. Use of LED lighting which is pure light; this produces high illumination levels which hurts our night vision. LED lights also cause a blooming effect during high moisture days. Lighting must be adjusted to suitable levels to not hurt our night vision. Day time levels are not an issue. With high moisture level blooming occurs at high illumination levels; lights must be adjusted to prevent this at night.

Data retrieved from NASA's ASRS site 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.