Tuesday, 26 July 2011

Cornea Abrasion Recovery

A couple of weeks ago I suffered from a large corneal abrasion. Being a pessimist I assumed I wouldn’t be able to see again. It was one of the scariest experiences of my life.

While I don’t recommend having a “Google” for medical self diagnosis (there’s a lot of duff forum posts), I couldn’t find that many posts on how people have recovered from an abrasion. Here’s one post to address that imbalance…

On Tuesday 12th July my son accidently kicked me in the right eye during a nappy change. For the first 30 minutes I couldn’t feel any pain, but my vision had a disturbing tint of white. It was like looking through a steamed up windows.

The pain kicked in after about 1 hour, but I didn’t want to visit the hospital as I assumed it’s one of those things that will be okay after an hour or two.

Three hours later my Mrs drove us all to accident and emergency at the hospital. During the ride to the hospital and walking to A&E, the pain we so immense that I couldn’t open either eye,
The doctor squirted a few drops of some pain killer into my eye and I could open both eyes without any pain. It was amazing stuff. Following that he examined my eye for any internal damage (thankfully not finding anything) then put a few drops of some orange substance (fluorescein) in it. The fluorescein makes any corneal abrasions turn green.

The doctor rather worryingly said my abrasion was the size of Africa (meaning it was quite large). It was a round abrasion 3mm in diameter. With permission, I managed to take a picture of his notes…

Chloramphenicol which had to be applied 4 times a day for 5 days. I was asked to return on Thursday (2 days later) for a check up.

Just before leaving the hospital, my wife took this picture. The green is caused by the fluorescein. The dark green is my iris and the light green is the area with the abrasion.


The doctor had lead me to believe the pain would be unbearable that night, but I was more worried about losing my vision. Don't get me wrong, it was painful - I was doped up on Paracetamol and Ibuprofen most of the time. I found Ibuprofen gave the most relief. Made a mistake on the first evening by not applying the medicine.

During the next 48 hours my vision was very blurred and tear ducts where working overtime. I spent most of the time with my eye shut, as it felt better.

The drive to hospital on Thursday was painful, thankfully my wife drove the car. The sunlight was hurting my eye. Bloody typical – British summers aren’t usually that sunny unless your recovering from a cornea abrasion!

The doctor applied some more fluorescein, and said that the abrasion had mostly recovered. Only three small pin pick holes remained. My vision was still blurred.

The following Tuesday (1 week after the accident), I still had blurred vision. Being a IT professional in front of a monitor for 8 hours a day was unbearable. I arranged a visit to my local General Practitioner.
He performed another fluorescein test, and said my cornea didn’t have any abrasions. Quite worrying considering my (long and short sighted) vision was still blurred.

It’s 2 weeks since the accident. I think my vision is getting better in my eye. But it’s difficult to say. I’m booked into see the ophthalmologist this Thursday (16 days after the accident).

I’ll update this blog when I’ve got more news.
  • Update 27/07/2011 - I could resist searching the Internet for my blurred vision. Came  across this page, which describes Cornea Endema (swelling of the Cornea). The cornea is made of 5 layers, if fluid gets between these layers, it can cause blurred vision. Muro 128 ointment can be used to draw out this fluid (here's a bit more info). Wonder if the opthamologist says the same thing tomorrow...
  • Update 30/07/2011 - Visited the ophthalmologist a couple of days ago. While there's no serious issues with my eye, he said that the top layers of the cornea typically repair themselves after 2-3 days, but the lower layers can take several weeks. Not totally sure why, but he recommended a use Viscotears (typically used to treat dry syndrome) for 6 weeks, even though I've no history of dry eye or pain. 
I must admit that my vision is getting better in my eye. Based on my experience of a large cornea abrasion...
  • Days 1-2: Experienced the most pain. Had to keep my eye shut due to the pain. Found Ibuprofen helped better than paracetamol.
  • Days 3: Top layer of cornea about 97% repaired. No pain unless exposed to bright sunlight.
  • Week 1: No pain, just blurred vision.
  • Weeks 2-3: Blurred vision improving.  

Sunday, 30 January 2011

Tough call - switch to Ubuntu or stick with Windows 7?

In the last few months, I've been trying out Ubuntu 10.10. It stemmed from wanting to buy a MacBook, but not wanting to cough up the money for Apple hardware. In addition, I keep hearing about Apple hardware breaking down. Knowing my luck it'd break within a couple of months after the warranty has expires.

Back to the original post... Being a simple sole, I'd like to stick to one platform - either Windows 7 or Ubuntu. I've tried my best to switch, but have come to the conclusions...

Windows 7 runs the software I like - Sony Vegas, extensive DVD backup software, Keepass (with KeepassSync), iTunes.

Ubuntu beats Windows 7 hands down for surfing the net on my netbook. Almost everything that I do these days is through a web browser, so missing out on the Windows 7 applications isn't a major issue. I've tried switching to LastPass instead of Keypass, but LastPass gives me (unnecessary?) concerns about my security on the web.

I thought if I switched to Ubuntu, I wouldn't need to download as many software updates as Windows 7. Surprisingly, my Ubuntu system requires more updates. Which includes clogging up my grub loader with loads of dead kernels (which can be removed, but I shouldn't need to manually remove them).

So I'm going to stick to Ubuntu on my netbook. My desktop PC will keep Windows 7, hosting my video and music collection.

Tuesday, 29 June 2010

iPhone iOS4 with Three UK

I recently installed iOS4 on my iPhone 3G which is on the Three network. After installing my battery life was reduced from 50 hours to around 20 hours.

As I live out in the sticks with no 3G coverage, I usually disable 3G which improves battery life. Mostly due to the iPhone not continually trying to get a 3G signal. I know disabling 3G violates Three's T&Cs.

Since upgrading to iOS4, the "Enable 3G" option is no longer available in network settings. When I installed iOS4, I opted to upgrade Three's carrier settings which contained the rule to hide "Enable 3G".

Reinstalling iOS4 and not upgrading the carrier settings allows me to see the "Enable 3G" setting.

I expect the carrier profile (Hutchison_uk.ipcc) for Three can easily be edited using Apple's Configuration Utility.

Tuesday, 2 March 2010

Avoiding battery damage with Windows 7

My Acer Aspire netbook is great. Originally shipped with a Linux distribution, I quickly installed Windows XP. Being slightly paranoid, I locked the hard disk requiring a password to boot up.

A few months ago, XP was replaced with Windows 7. Unusually, my laptop started running out of power without being used. Within weeks Windows7 started complaining about my laptop's battery, that it needed replacing.

When batteries reach 0% charge, they get damaged. I could not determine why my battery kept discharging with Windows 7. The event logs in Windows 7 didn't contain any information,

Eventually I realised that Windows 7 quite often boots a computer out of standby or hibernate, and having a hard disk password on boot, meant the computer was stuck requesting this password. This was discharging my battery to 0%.

A costly mistake having a hard disk password with Windows 7. Hope this post helps someone else.