Royal National Institute of Blind people (RNIB) have expressed the challenge faced by patients with cataract, who are unable to get the 'go ahead' from NHS trusts unless they fail eye tests.
According to the latest figures, 57% of NHS trusts are very strict with consent for cataract surgeries.
Eye health organizations, including the Royal College of Ophthalmologists (RCO), have expressed concern with such a move, as this means reduced quality of life for those with cataract.
Professor Harminder Dua, the President of the RCO, said: "We understand the financial pressures the NHS faces but cataract surgery is a highly cost effective treatment that improves sight loss and preserves patients' ability to live independent lives. Using visual acuity thresholds to impose limits on cataract surgery is economically counterproductive when it leads to higher health and social care costs because patients' vision deteriorates."