Mr Akash Raj MBBS & MD (AIIMS), MRCS, DRCOphth, FRCS, FRCOphth, PG Dip (Distinction) Consultant Ophthalmologist, Glaucoma specialist and Cataract surgeon, Birmingham, Dudley, Midlands, UK
Mr Akash Raj MBBS & MD (AIIMS), MRCS, DRCOphth, FRCS, FRCOphth, PG Dip (Distinction)Consultant Ophthalmologist, Glaucoma specialist and Cataract surgeon, Birmingham, Dudley, Midlands, UK 

Some important & interesting facts about eye drops

  • The conjunctival sac of the eye has a capacity of only 10 µL and an average eye drop is 25-50 µL, so 60-80% of an eye drop may overflow and enter tear (lacrimal) drainage system.


  • Therefore it does not make sense to apply more than one eye drop at a time per eye and is advisable to wait for atleast 15-20 minutes before applying the next eye drop.


  • The nasopharyngeal mucosa is the primary site of systemic
    absorption of drugs applied topically to the eye.


Peak drug levels typically occur much more rapidly (similar to an

intravenous bolus) than with oral administration. Absorption

through the nasopharyngeal mucosa also avoids a first pass

through the liver and for some drugs this will increase

the proportion of drug reaching the systemic circulation. Timolol,

which exhibits extensive first pass metabolism is such a case.


The drops can act as a systemic “bolus” – an infusion of the drug

Into the   bloodstream. Only 1-7% of the eye drop enters the eye

Through the cornea. This is sufficient to have the desired effect of

lowering intraocular pressure. Approximately 80% of the drug

reaching the tear (lacrimal)duct is absorbed systemically, meaning

that it enters the bloodstream. This is responsible for many of the

side effects associated with glaucoma treatment medications

administered through eye drops.


It is for these reasons Mr Raj would advise closure of the eye lids

for a few minutes after application of drops and also to put gentle

pressure on the skin over the inner corner of your eye.

Private & NHS patients

How to see Mr Raj

For private patients & referrals


Mr Akash Raj 

Consultant Ophthalmologist, Glaucoma specialist & Cataract surgeon


Stourside Hospital (part of West midland Hospital)

60 Bradley Road



01384 505 183


(Alternate Thursday PM)



01384 632 640


Private Secretary: Liz Carter : 01384 632 636 






Mr Akash Raj

Consultant Ophthalmologist, Glaucoma & Cataract specialist


BMI The Priory Hospital, Edgbaston

(Thursday PM)
Priory Rd, Birmingham, West Midlands
B5 7UG
0121 446 1638
(Consultation by appointment only)
Private Secretary:
Liz Carter
Direct Line: 01384632636 




For NHS Referrals through GP/Opticians


Mr Akash Raj

Consultant Ophthalmologist (Glaucoma Lead)


Russells Hall Hospital

Pensnett Road


West Midlands



Phone: 01384456111

Extn. 5815 (NHS Secretary: Lyn Eaton)



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