Opticians Cheltenham

| Tel: 01242-282059

dry eyes

Oculus 5km Dry Eyes

dry eyes

With the advent of the K5m we can now examine your eyes and tears in a way not previously possible. Below are some of the advanced features of the K5m that make up just part of a dry assessment at Maddox Dry Eye Centre.

Lipid Layer Thickness

The depth and spread of meibum (oil) is analysed, a healthy layer giving a colourful oil-slick appearance. If too thin or absent the tears will evaporate too quickly.


The meibomian glands sit just below the skin of the eyelids and it is possible to create an image of them using infra-red light. Analysing their structure provides vital information in the assessment of your dry eye condition.

Tear Film Dynamics

A recording of up to 32 images per second enables observation of the ‘tear particle flow characteristics’. The results are used to evaluate the viscosity, or thickness of the tears.


This is first and only technology that automatically and objectively measures and classifies the degree of ocular redness. The K5m is able to distinguish the thinner conjunctival vessels affected by dry eye.

Tear Break-Up Time

Any break-up of the tears will result in dry eye symptoms. The K5m is able to accurately document the exact corneal position of any tear break-up and the time taken.

  Paul Maddox   Mar 08, 2015   Blog, Dry eyes   0 Comment   Read More

Dry Eye Nutrition

Dietry deficiencies, particularly of Omega 3, have long been linked to the prevalence of dry eye in the western world. Omega 3s produce their beneficial effects through anti-inflammatory properties. We recommend supplementation with one of the commercial dry eye preparations as the first course of action before considering prescription medication to control inflammation. The course should last no less than 3 months to gain the full benefit. The commercial preparations are preferred initially as they offer the optimum concentration of vitamins with the perfect balance of Omega 3 and Omega 6. Once under control more economical alternatives can be considered for the longterm. It would be advisible to also alter your diet to include some oily fish such as those listed below. Like most dry eye treatments it is important to continue supplementation indefinitely.

Fish Containing Omega-3 (total DHA and EPA in grams)

Salmon, Atlantic (half fillet, grilled) 3.89
Mackerel, Pacific (1 fillet, grilled) 3.25
Sardine oil (1 tablespoon) 2.83
Salmon, Chinook (half fillet, grilled) 2.68
Cod liver oil (1 tablespoon) 2.43
Salmon, pink (half fillet, grilled) 1.60
Herring oil (1 tablespoon) 1.43
Sardines, canned in oil (approx. 3 ounces) 0.90

White tuna, canned in water(approx. 3 ounces) 0.73 

(Source: National Agriculture Library, U.S. Dept. of Agriculture)

Fish oil and flaxseed oil can increase clotting time and we recommend those on Warfarin consult their GP first.


  Paul Maddox   Feb 19, 2015   Blog, Dry eyes   0 Comment   Read More