File:Ectasia risk topography.png

Original file ‎(3,793 × 2,845 pixels, file size: 17.88 MB, MIME type: image/png)

Classic topographic pattern of keratoconus.

1. Increased area of corneal power surrounded by concentric areas of decreasing power.

2. Inferior-superior power asymmetry. 3. Skewing of the steepest radial axes above and below the horizonal meridian .

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	15:41, December 19, 2015	3,793 × 2,845 (17.88 MB)	Adrian.M.Lopez (talk \| contribs)	Classic topographic pattern of keratoconus. 1. Increased area of corneal power surrounded by concentric areas of decreasing power. 2. Inferior-superior power asymmetry. 3. Skewing of the steepest radial axes above and below the horizonal meridian.
	15:29, December 19, 2015	3,793 × 2,845 (17.88 MB)	Adrian.M.Lopez (talk \| contribs)
	15:26, December 19, 2015	3,793 × 2,845 (18 MB)	Adrian.M.Lopez (talk \| contribs)	Classic topographic pattern of keratoconus. 1. Increased area of corneal power surrounded by concentric areas of decreasing power. 2. Inferior-superior power asymmetry. 3. Skewing of the steepest radial axes above and below the horizonal meridian .

You cannot overwrite this file.

The following page uses this file:

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

ISO speed rating	50
Latitude	25° 40′ 3.42″ N
Altitude	573.23 meters above sea level
Exposure time	1/40 sec (0.025)
Longitude	100° 21′ 5.46″ W
Lens focal length	4.12 mm
F Number	f/2.4
Camera model	iPhone 5
Camera manufacturer	Apple
Date and time of data generation	17:14, December 16, 2015
Scene type	A directly photographed image
Reference for bearing of destination	True direction
Flash	Flash did not fire, auto mode
Image height	2,845 px
Metering mode	Spot
APEX aperture	2.5260688216893
Image width	3,793 px
Scene capture type	Standard
APEX shutter speed	5.3219858156028
Meaning of each component	Y Cb Cr
Exposure mode	Auto exposure
APEX brightness	4.9644451285209
Subject area	1,865 1,221 610 612
Speed unit	Kilometers per hour
Exif version	2.21
White balance	Auto white balance
Color space	sRGB
Speed of GPS receiver	0
Bearing of destination	90.063909774436
Exposure Program	Normal program
Sensing method	One-chip color area sensor
APEX exposure bias	0
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	9.2
Date and time of digitizing	17:14, December 16, 2015
File change date and time	17:14, December 16, 2015