Optical frame online purchasing system

ABSTARCT :

To compare spectacles bought online with spectacles from optometry practices. Thirty-three participants consisting of single vision spectacle wearers with either a low (N = 12, mean age 34 T 14 years) or high prescription (N = 11, mean age 28 T 9 years) and 10 presbyopic participants (mean age 59 T 4 years) wearing progressive addition lenses (PALs) purchased 154 pairs of spectacles online and 154 from UK optometry practices. The spectacles were compared via participant-reported preference, acceptability, and safety; the assessment of lens, frame, and fit quality; and the accuracy of the lens prescriptions to international standard ISO 21987:2009.

EXISTING SYSTEM :

? These efforts have successfully increased coordination among existing organizations and mobilized significant official development assistance to address the problem at scale. ? Although eyeglasses have existed for hundreds of years, scalable distribution models have now emerged and new technologies are being tested to accelerate access. ? Assuming that surrounding communities have adequate vision care facilities, the opportunity now exists to establish referral networks to treat advanced eye disorders that might otherwise have gone undetected. ? Both parents and students have reported uncertainty about whether a vision problem actually exists even after it was determined the students needed glasses.

DISADVANTAGE :

? These issues have previously been identified as reasons why both young and older adults avoid attending optometry/optician practices for eye examinations in the UK,22,23 which again suggests that a change of approach to the funding of eye examinations would be beneficial. ? Seventy-eight percent of those perceived as unsafe came from online suppliers and for half of those the problem was due to the fit of the frame rather than the prescription accuracy of the lenses. ? This issue, the limitation of the 2-hour participant assessment of each pair of spectacles is deemed a reasonable decision, as any increase (to say 2 days per pair of spectacles11) would likely have increased participant dropout further.

PROPOSED SYSTEM :

• Thereafter the subcommittee will report out the proposed standard again, and the entire committee will vote on it again. So, at ANSI, one vote can block the process. • Standardization within the ISO takes place through the formation of Technical Committees and subcommittees for each specific product. • Then each member organization determines its national proposed standard for the product and argues its position in the committee and subcommittee. • When the subcommittee has negotiated a draft proposal and the committee has agreed upon it, the proposal goes before the entire ISO membership for a vote.

ADVANTAGE :

? Spectacle cost was compared with pass/fail performance on optical tolerance and impact testing. ? However, because we received no more than 20 pairs of spectacles from any single vendor, we cannot make any meaningful comparisons between vendors or draw any conclusion about the performance of any individual vendor. ? Members of the public who engage in the purchase of eyewear without an active, personal dispensing process by a trained professional might not receive a product of equal performance, value, or safety. ? We also did not determine if any doctors located in those states directly used any services of these or other online vendors to personally dispense eyewear to patients.