Meanwhile, I woke up yet again with my left eye nearly glued shut. This incidence has been increasing and is now quite annoying. Usually it is limited to allergy season or other allergies with nasal symptoms. It is always my left eye because I sleep predominantly on my left side. I am assuming the fluid is helped by gravity and comes out the left eye.
This got me to thinking whether or not CPAP has anything to do with intraocular pressure.
And it does.
Baseline measurements showed a significant nycththemeral fluctuation in the average IOP, with the highest IOPs at night. After 1 month of CPAP therapy, the average IOP was significantly higher than baseline. The increase in overnight IOP was also significantly higher. A 24-hour IOP fluctuation of > or =8 mm Hg was found in 7 patients at baseline and in 12 patients during CPAP therapy. The mean difference between trough and peak IOP was 6.7 +/- 1.5 mm Hg at baseline and 9.0 +/- 2.0 mm Hg during CPAP therapy. Thirty minutes after CPAP cessation a significant decrease in IOP was recorded. There was a statistically significant decrease in mean OPP during CPAP therapy.
Patients with OSA demonstrated significant 24-hour IOP fluctuations, with the highest values at night. CPAP therapy causes an additional IOP increase, especially at night. Regular screening of visual fields and the optic disc is warranted for all patients with OSA, especially those treated with CPAP.
(source: http://www.ncbi.nlm.nih.gov/pubmed/18326715 )
Quote:Nasal CPAP during wakefulness increases intraocular pressure in glaucoma
Few important side-effects of nasal continuous positive airway pressure (nCPAP) have been reported. No increase of intraocular pressure (IOP) complicating this treatment has previously been described. The goal of our study was to analyse the influence of nCPAP on IOP. We evaluated 18 patients previously diagnosed as having glaucoma and 22 normal subjects. nCPAP was used during wakefulness, at +12 cmH2O for 15 min. The results showed that nCPAP significantly increases IOP in patients with glaucoma (before nCPAP 20.3 +/- 6.3 mmHg) (mean +/- SEM); after nCPAP 22.3 +/- 5.7 mmHg. We believe that nCPAP might be relatively contraindicated in difficult to manage glaucoma patients, if these results are corroborated.
(source: http://www.ncbi.nlm.nih.gov/pubmed/7841974 )
So I was wondering if anyone else has any information or has glaucoma or ocular hypertension.
Apnea Board Moderator
Breathe deeply and count to zen.