|
1887 F.A.Müller of Wiesbaden (1862-1939), an artificial eye maker, produced and fitted a blown glass contact shell (kontaktschalen) as a protective cover for a patient's eye which had been ravaged by malignant disease. It had a white scleral portion overpainted with blood vessels. The patient was still wearing it twenty one years later.
1888 Fick (Zurich) and Kalt (Paris) independently developed optically corrective scleral contact lenses. Fick noted the presence of a type of visual clouding or corneal 'veiling'. Kalt's first lenses were made from segments cut off the bottom of glass test tubes.
1889 August Müller (1865-1949) fitted himself with a blown glass lens accurate to within 0.50 D but he had to insert it under water to prevent air bubbles and even using cocaine as a local anaesthetic allowed him to tolerate the lens for only half an hour.
1892 Sulzer of Geneva fitted ground Zeiss lenses to patients with high myopic astigmatism and keratoconus.
1909 Müller blown glass lenses went into regular production.
1914 Siegrist pioneered fitting lenses from stock.
1927 Ground glass contact lenses were fitted by R.S. Smellie, working for Theodore Hamblin Ltd under Gerald Wingate in Wigmore Street, London. The lenses were ordered from Zeiss in Germany and took about six weeks to arrive. Smellie is pictured here demonstrating a new apparatus for inserting lenses.
1928 Adolf Müller-Welt applied for a patent for the fluidless blown glass lens.
1929 Josef Dallos of Budapest moulded scleral lenses for individual patients from the living subject using 'Negocoll' - a derivative of seaweed.
1929 Professor Leopold Heine of Kiel developed afocal lenses, causing their increased popularity. These were preformed ground glass lenses with corneal radii ranging from 5-13mm and scleral curves of 11, 12 or 13 mm. The visual correction was supplied by the liquid 'lens' - a solution of Holocaine 2% saline in warm water. Dallos subsequently refined the design with a third curve to reduce the water volume.
1930 Andrew Rugg-Gunn (1884-1972) wrote the first UK paper on contact lenses which appeared in the medical journal The Lancet. He showed an awareness of the then limitations on grinding glass to the right shape. He felt that success with blown lenses was superior but often a lucky accident.
"In the last analysis it is comfort that determines whether a glass shall or shall not be worn"
1931 The Western Ophthalmic Hospital in Marylebone started using Zeiss trial sets of afocal spherical lenses with varying corneal and scleral curves after Rugg-Gunn brought a set back with him from Hamburg. Soon the butt of criticism from Ida Mann (1893-1983), they were only partly successful in England where many contact lens-prescribing ophthalmologists preferred to leave the fitting to dispensing opticians. Mann would later be instrumental in bringing Dallos to England.
1931 ICI invented ‘Plexiglass’.
1931 Professor C.H. Sattler described corneal 'veiling' .
1932 Hans Hartinger developed various Zeiss lens designs.
1932 K.O. Dunscombe studies at Zeiss in Jena and brings the techniques learned home to the family firm in Bristol.
1936 Theodore Obrig of New York introduced lenses moulded from acrylic resin rather than glass.
1937 The ophthalmic instrument designer C.H. Keeler (1903-1993) and the optometrist Edmund Plaice FBOA of Clement Clarke Ltd studied manufacture and fitting of contact lenses under Professor Weve in Utrecht.
1937 Theodore Hamblin Ltd invited Dallos to work in London, founding the Contact Lens Centre in Cavendish Square.
1937 Istvan Györffy stays behind in Hungary to continue Dallos' work and makes the first PMMA scleral lens.
1938 Moorfields Eye Hospital opened a Contact Lens Department.
1939 The engineer Cyril Winter of C.W.Dixey Ltd made the first lathe for PMMA scleral lenses.
1939 On a trip to the USA Frank Dickinson met Keith Clifford Hall on the Queen Mary liner. They went on to become the most distinguished optometrists to fit contact lenses.
Moorfields Eye Hospital Contact Lens Department c.1955
1942 C.W. Dixey & Son Ltd announced the perfecting of a grinding technique for plastic lenses.
1942 Obrig published the first book on contact lens fitting.
1944 Dallos and Bier independently produced fenestrated haptic lenses to combat veiling but Bier was awarded the patent the following year. The fenestration (a small hole) worked by trapping a small bubble of air between the lens and the cornea.
1947 The Contact Lens Society was founded. Its first president was Ida Mann with F. Williamson-Noble and Keith Clifford Hall as vice-presidents and A.G. Cross and G.H. Giles as joint secretaries. Sir Stewart Duke Elder also played an influential role in setting it up. The CLS held its first meeting at the British Optical Association headquarters, then at 65 Brook Street on 27 January.
1947 Contact Lens Research Group formed at the London Refraction Hospital - early members included Lew Sasieni, Euin Steele and D.W.A. Mitchell who experimented on each other's eyes, taking impressions with the dental material 'Zelex'.
1947 Gunther Wingate (later to co-found Omega Contact Lenses) and Norman Bier went into partnership.
1947 Wesley-Jessen company founded when George Jessen designed corneal lenses to fit Newton K. Wesley's kerataconus.
Late 1940s The manufacturer Newbold & Co Ltd of London would lend out three-part lens fitting sets comprising 73 lenses in all. Opticians could hire the set for a period of four days. In those days only the most specialist contact lens practitioners amassed their own fitting sets.
1948 Kevin Tuohy in the USA "invented" the corneal lens. (Patented 1950). Keith Clifford Hall was an early British user of the original design.
1948 Heinrich Wöhlk produced moulded corneal lenses.
1949 Foundation of the Association of Contact Lens Practitioners (ACLP). Founder members included Euin Steele, Reg Tyler-Jones and Bernard Donner. The ACLP was incorporated as a limited company in 1955 and hosted the first congress purely devoted to contact lenses to be held in Great Britain in 1960. Its official journal was The Contact Lens Practitioner.
1950 Butterfield of Oregon designed a corneal lens formed to the eye’s shape.
1950 Frederick Williamson-Noble (1889-1969), an ophthalmic surgeon, described a practical bifocal contact lens - with a central near zone surrounded by a distance vision annulus. Three years later he was fitted with a pair himself.
1950 Clifford Knott became the first travelling representative for a contact lens company when he began such work for C.W. Dixey Ltd.
1951 A collaborative effort by three optometrists produced the 'Microlens' - an improved corneal lens due to W.P. Söhnges, of Germany, John C. Neill of America and Frank Dickinson of England. The Microlens was a PMMA lens just 9.5mm in diameter with a single posterior curve and a very small edge bevel. It could thus be fitted some 0.2 to 0.3mm flatter than any other lens hitherto available. Named by Muriel Dickinson the lens was announced to the world in 1953. Later enhancements to the back surface design and modern gas-permeable materials have given us the hard lens of today.
1955 John de Carle, London Optometrist, produced a bifocal corneal lens.
Hard contact lenses remained the normal type until the mid 1960s when there was a large scale rush to prescribe and fit soft lenses instead.
|