Scleral Lenses – Five FAQ


Do Scleral lenses hurt?

·         Not at all, in fact many people wear a Scleral lens in only one eye for various reasons, and there is no perceptible difference between the eye with the lens and the eye without.

·         They keep the eyes moist as a layer of tears is trapped between the lens & the eye  so as the day progresses where most contact lenses will start to feel scratchy, especially with smoke or strong air conditioning, the Sclerals will remain comfortable.  The typical wearing schedule of a Scleral lens is from awakening to bedtime.

How are Scleral Lenses fitted?

·         Notwithstanding their phenomenal success in terms of chair time, comfort & retention compared to the old hard or RGP lenses; Sclerals remain the most difficult lenses to fit.

·         For this reason, the fitting process can take a few appointments over a period of a few months, yet the patient can enjoy clear comfortable vision at the beginning of the fitting, they will not need to wait until the end for this. 

·         We may need to order up to three lenses before the fit is finalised, but the first of these three are normally close enough in terms of vision & comfort to be worn all day.

Are Scleral Lenses indicated for corneal scarring?

·         Yes, the scleral will both help to improve the visual acuity directly or indirectly as well as provide a protective tear layer over the scarred area which will minimise discomfort and dry eye symptoms.

What are the alternatives to Scleral Lenses?

·         That depends if the cornea is compromised or not.  If it is like in cases of Keratoconus, corneal injury or scarring, corneal grafts etc.; the options are the smaller hard lenses sometimes called RGP or even GP lenses.

·         For those people who have healthy corneas but choose Sclerals for lifestyle reasons, then all the options including spectacles & soft contact lenses apply.

How long do Sclerals last?

·         In most countries that use the same product that I do, the recall is one year.  I allow my patients to keep them for two years.

Masks during the COVID pandemic – Just another opinion.

Paul Moldovanos Optometry

Due to the staggering amount of misinformation during the Covid-19, I will post this as nothing else but my personal opinion.  I hope to help clear up a lot of the confusion surrounding the use of masks for the benefit of all who visit our practice during this time.

There is a conflict of opinion whether masks are helping to slow the spread of the Corona virus or not.  I believe that a lot of the negatives were borne out of initial non availability of masks, and so a rationalisation-if we cannot get them, let us believe that we do not need them.  Other factors were probably not against the masks but their implementation. 

I do believe that they work and a recent study from Hong Kong shows a near perfect correlation between early masking and timeous flattening of the curve as opposed to countries who delayed their reaction.  Asian countries have for many years used masks in public to control the spread of germs due to their densely populated cities and higher number of outbreaks of new strains of flu.  So, this is nothing new.

Back to the negatives.  I do believe that if we use non-disposable masks, they must be washed daily and allowed to dry in full sunlight. Our noses should not stick out the top as this defeats the object, and we must be conscious of how clean our hands are when handling our masks.