Question
Hi,
I am a Chinese girl at the age of 27, working as an editor which i have to star at computer for nearly 9 hours a day.
Two months ago ,I felt uncomfortable about my eyes, as when I see the lights or something reflecting light, there will be halo on the top of the objects which become more serious at night.
Meanwhile, my eyes come to be painful and swelling these days and I hardly can use computer as it is almost difficult for me to lift my eyelids. I have gone to several eye hospitals in china. On Feb. 13, my eyes pressures are :21(left),23(right); Feb. 20, they are 19. 20; Mar. 5, they are 20,22. And then the doctor asked me to use the eye drops:Timolol Maleate .
A week later, my eye pressures are 19,21.But the Symptom still exist , even worse. Yesterday I checked again and this time the eye pressures are 17,23.
I have had my fundus and vision checked, but there is no problem. There was no family history of glaucoma, either. I have got myopia, left(400),right (500), no astigmatism, have been dilated and have made sure that the degree of glasses is suitable.
I am so wondering what the diseases i got is ?
Would you please help me ?
Thanks a lot!
Answer
Thanks for your Question
Normal intraocular pressure is 10-20 mmHg. High intraocular pressure is above 20 mmHg.
For accurate diagnosis of Glaucoma:
1- Accurate measurement of Intraocular pressure. Pneumotonometer can give false readings so it is better to measure the intraocular pressure with applanation tonometry which gives accurate readings.
2- Measurement of corneal thickness. Thick cornea can give high false readings and thin cornea can give low false reading.For Example. Patient with thick cornea. His intraocular pressure is 24 mmHg.This intraocular pressure can be normal to his eye because his cornea is thick. There is special equation between the corneal thickness and normal intraocular pressure.
3- Risk factors for glaucoma. Myopia is one of the risk factors of glaucoma.
4- Accurate examination of the angle of the eye and the anterior chamber of the eye to find if there any abnormalities.
5- Visual field test and O.C.T of the optic nerve is very helpful to determine if there is any damage of the optic nerve from high intraocular pressure.
6- Any systemic medications can cause transient high intraocular pressure. Make sure that you aren't on any medications.
Working on computer for a long hours has not been proven to cause high intraocular pressure. It can cause ocular pain and strain which is called computer strain syndrome.
After you done from the above steps and your intraocular pressure still high, you have to take eye drops for glaucoma. Sometimes, one type of antiglaucoma eye drop is not enough to normalize intraocular pressure and you might have to use more than one type.
Good luck.
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